UNITED STATES FLEET UNITED STATES NAVAL FORCES, GERMANY, TECHNICAL SECTION (MEDICAL) ROOM 124, EUCOM HDQTRS.BLDG. APO 757 File: F-3 (5) Serial: 243-Med. 22 April 1946 From: Assistant Technical Officer (Medical) U*S. Naval Forces, Germany To: Chief, Bureau of Medicine and Surgery, (Attn: Chief, Publications Division). Via: (l) Technical Officer, U.S, Naval Forces, Germany (2) Chief of Naval Operations (•p-32-F2.). Subject: Marknagelung (Medullary Nail) - Additional Translation - Forwarding of. Enclosure: (A) Copy of Subject Translation (Project II, Folio IV) Fresh Fractures of Upper and Lower Limbs treated by the Medullary Nail. - by Prof. Dr. C, HAEBLER. 1. Because of its bulk, Enclosure A will be forwarded under separate cover directly to each of the below listed recipients of a copy of this letter. 2. This Folio contains a review of the treatment of fresh fractures of the upper and lower limbs with the medullary nail prepared by Frof. Dr. Haebler of Hannover. 3. Subsequent Folios in this series will include a discussion of other uses of the medullary nail by Dr. Haebler.and a complete discussion of the subject by its inventor Prof. Dr. Gerhard Kuentscher of Schleswig. Production of these folios has been somewhat delayed by the difficulties in obtaining photographic material to make the illustrations, 4* Attention is invited to the fact that this folio is from an unpublished manuscript prepared for the U.S. Navy and publishing rights are therefore a property of the Bureau of Medicine and Surgery, Navy Department. 5. The reserve supply of these Folios is limited. It will be forwarded to Bureau of Medicine and Surgery, Publications Division on a Government Bill of lading. Requests for additional copies or further distri- bution should be addressed to that office, / HARRY J, ALVIS, Commander, Medical Corps, U. S. Navy• cc: Tech. Off, CNFG* CNO (•p-32-F2) BUMED (Publications Div.) BUMED (Professional Div*) BUMED (Research Division) National Naval Med*Center, Navy Medical School, National Naval Men*Center, Naval Med. Research Inst* Army Medical Library Department of the Army, ©ffice Surg, Gen. Department of the Air Force, Office Surg. Gen* U.S. Public Health Service, •ffice Surg, Gen. U.S. Veterans Administration, •ffice Chief Med. Director* EXPERIENCES WITH THE MARROW NAIL OPERATION ACCORDING TO THE PRINCIPLES OF KUENTSCHER by Prof. Dr. C. HAEBLER Translation prepared bys U.S, Naval Technical Unit, Europe, (Medical Section) Office of Naval Advisor Office of Military Government (US) 1 In my previous publication on the marrow nail operation (l) I had not evaluated the final findings statistically because the material in ruestion appeared to be too small. The experience obtained from 900 cases dies not say a great deal of course, nevertheless a prelimi- nary evaluation seems to be useful. The findings were obtained from my civilian practice in my own clinic and from the MUNICIPAL HOSPITilL at Ricklingen/Hannover of which I was the deputy in charge for about two years. On the other hand and to their greater part these ex- periences were gathered during my activities when I was a consulting surgeon of the Air Armada "RFICH" during which time I had the opportunity to perform nailing operations myself and to study the course of all the other cases by means of detailed reports and after con- sultations. A special department of the Air Force hospital at Braunschweig (Stabsarzt von Scanzoni), which was superintended by myself, made it possible to gather experience with particularly complicated cases principally with regard to the marrow nail operation in old gun-diot wounds, The indication and the technioue were previously published in detail. BOEHLF.R has also contributed to these problems (2). In the second edition of his pub- lication (1944) he is much more cautious as to the in- dications. finally KUENTSCHFR and MAATZ (3) have pub- lished their technioue in detail and given us a detail description of all fractures suitable for the marrow nail operation. It would be rather interesting to deal with the various antithesis of those authors and compare them with our own In view of the limited space, however, we have to deal only with our own findings and experiences gathered from our own material. On the one hand we must deal with the problem whether the results obtained by marrow nail operations are an advance in comparison to the hitherto known methods of treating bone fractures. On the other, however, we must study the problem as to whether or not the number of disadvantageous effects is greater so that they offset the better results. Furthermore we must study this method as to the cuestion of whether or not it may be generally used notwithstanding its difficult technioue or ffhether or not it must be reserved to special surgeons because of the danger connected with its use. Finally we must come to a conclusion whether the indications stated earlier (l) may be maintained. One general remark must be made: In general the healing of a fracture is determined according to the formation of callus as observed in the X-ray. A long time ago we had already pointed to the fact that the X-ray picture may be deceptive. From the clinical point of view a fracture may be solid and suitable for weight bearing even if the X-ray does not show ?/hat we consider to be a sufficient formation of callus (2)# We often observe, however, that even an abundant formation #f callus (without structures of lines of force) may not withstand the strain caused by gymnastics during the confinement to bed. At that time we came to the following conclusion: "Besides the rough mechanical examination the only criterion 2 is the subjective statement of the patient as to pains encountered during weight bearing, bending or pressing the fragments together. All these symptons fail to appear after the nail- ing if a stabile osteosynthesis has been achieved. In case of a true stabile osteosynthesis painless weight bearing is possible at a time when a sufficient formation of callus is certainly not yet to be observed. In such a case, even X-rays are of no help. It is well known that especially in case of an ideally fixed fracture the formation of callus is particularly slight and it is restricted to the fracture cleft. In case of an inserted nail the dense shadow of that nail covers the callus to a great extent. But even if a sufficient ouantity of callus was formed the shadow of the nail will render it difficult - sometimes even impossible - to determine the structures of the lines of force or their stability. As an example it may be oointed. to the X-ray demon- strated by illustration 1, It is a nailed true pseudarthrosis of the arm above the elbow in which only the connective tissue cartilage was removed from the fracture planes. The patient, a regular sergrant, had served in the field army for two years with a nailed fracture of his arm above the elbow without any trouble. According to the clinical and X-ray findin s the fracture was considered to be healed. Therefore the nail was removed but the pseudarthrosis still existed. Therefore there is no sure symptom whether and when the nailed fracture ?/as healed. So it may happen that the nail is removed too early (BOEHLER, ref,(2), 111, 3486/87) and vice versa we often have certa.inly left the nail in the bone longer than was necessary. As to the practical evaluati#* of the method it seems to be with- out significance, however, whether a bony healing is achieved earlj7- or late. As soon as the patient may use the broken limit without difficulty it does not make any difference whether the X-ray shows only a little or abundant callus and whether according to the X-ray the healing lasts 8 days or 8 months. We know that in all fractures even after the clinical healing, processes of reduction and reconstruction take place,which may last years. All this is of utmost 1 greatest interest from the scientific pofnt of view but nobody will refer to it when evaluating this new method. Therefore in the statistics in cuestion we take as a basis only the duration of the treatment and the incapacity for work. The aim to be looked for was described by KUENTSCHER as a stabile osteosynthesis by which (just as in the nailing of the fracture of the neck of the femur) the fracture pieces are united by the nail in such a way that any dis- placement is made impossible and painless weight bearing and use of the limb in ouestion is possible. The mechanical peculiarity of the "lashing" (fixation) obtained with the nail allows a firm pressing together of the frag- ments during the weight bearing. In this way particular- ly favorable mechanical conditions for the stabilization and formation of callus are obtained. 3 Illustration 1 True pseudarthrosis of the arm above the elbow 2 years after nailing. A re- section was not made because the nervus radialis was lying in the newly formed joint capsule. So much of the fibrous cartilap*' was removed that the bleeding bone was exposed. The patient served in the field army for more than 2 years with the nail in place. From the clinical point of view the fracture is absolutely stabile. From the reontgenological point of view sufficient ouantities of callus have been formed. Slight rarefactions about the nail point. The wires we see here were applied during a previous unsuccess- ful operation. After the removal of the nail the pseudarthrosis is flexible again. According to my own experience gathered with the foreign body osteosynthesis we did not dare hope that the meyp pr e~ of the matallic nail would stimulate or favor the formation of callus and unfortunately all such hopes were futile. On the contrary it was observed that an abundant formation of "stimulated callus*' which is caused by rust or unfavorable mechanical conditions is of little value and may even be disadvantageous. Therefore it must be kept in mind that the marrow nail will further the healing process and the formation of callus only in case of favorable mechanical conditions. 4 Unfortunately not all fractures are suitable for the marrow nail operation in the sense of a stabile osteosynthesis. This euestion cannot be dealt with in details here. The capability of appreciating the mechanic- al conditions of the marrow nail operation which is necessary for each healing of a fracture, and experience alone are the only means to get along with this prob- lem. All these experiences had to be gathered first and especially in the beginning, some fractures (especially of the leg) were nailed of which the osteosynthesis Yfas only ’’relatively stabile” . In many cases an absolute stabil- ization could not be achieved, not only because of the relative unsuitability of the fracture but principally because of the techniaue applied (the nail was either too short or too thin). Just like myself many an other surgeon had to make the same experience. Among my patients are several cases of ’’unstab:'le osteosynthesis”. It is my impression, however, that also a relatively stabile osteosynthesis has some advantages and therefore nailing operations of that kind wore made intentionally in order to gather further nxperience. I. Fresh simple Fractures. It is characteristic for the marrow nail operation that the fracture cleft is not exposed. All dangers arising from the operative treatment of fractures such as infections, delayed formation of callus, etc. are eliminated. In fresh fractures such a "closed marrow nailing" should always be possible and I myself have always been successful. The difficulties may be very great, however, especially if the surgeon is not sufficiently experienced and therefore many surgeons decided to open the fracture after the application of the nail. Primary cause for these difficulties may be the possibility of soft parts entering the cleft (l) which was referred to also by HART (2) Previously the interposition of soft parts was frequently considered to be an insurmountable obstacle for the reduction and therefore the fractures were ex- posed. BOEHLER, however, has pointed out that that obstacle had to be overcome only occasionally. In 500 cases of thigh fractures no single case of that kind was observed. He is of the opinion that in case of a dis- location soft parts penetrate the fracture cleft. But if the pressure is strong enough the bone ends slip back and the interposition disappears. This observation must be confirmed by my own experience. Muscles or fascias interposed between the bone ends are torn by the nail and after that they slip back. For reasons mentioned above HART’s (2) proposal is not acceptable according to which it would be better to expose the fracture if difficulties are encountered in setting a fracture. The danger of infection is consider- 5 ably increased by the exposure. We therefore rather suggest stopping the operation in such a case and to treat the patient with wire extension. (After the shortening has been eliminated it will be possible later on to try a second nailing operation). The only indication for the exposure of the fracture is the suspicion that nerves or larger vessels may have been hurt but it must be kept in mind that this suspicion has always been an indication for the exposure of the fracture. A total of 463 cases of nailing operations of fresh simple fractures were performed, 171 of v/hich were frac- tures of the legs, 141 fractures of the arm above the elbow, 133 thigh fractures and 18 fractures of one or both forearm bones. 5 fatal terminations must be regretted all of which occurred in cases of thigh fractures. They will be dealt with in detail in a special chapter. In the first place, however, I would like to deal with the duration of the treatment and the results achieved. aJLThigJL .fractures It was possible to study the course of 118 of a total of 133 .thigh fractures until a healing was achieved. In 111 or 94% of the cases, it was possible to achieve a good healing without any shortening, bending or involvement of the joints, (See table #1). In a 58 year old patient suffering from arthrosis deformans of the knee joint, a limitation of flexion amounting to 20° could not be avoided (Table No,2). In a single case the shortening amounted to 3 centimeters and in another case a lateral distortion of 30° occurred (table #3). I have seen that patient a long time after the operation when the nail was to be removed. It was a case of a transverse fracture in the central third and the osteosynthesis was stabile. The distortion was probably not observed during the operation (it was the first case of a nailing of the thigh of that surgeon). This case was treated by transecting the bone above the fracture with the nail in place. Then a guide rod was inserted into the nail, the distortion eliminated and the nail introduced again. The final result y;as that the limb could be used satisfactorily. The two other shortenings of 3 an cl 2 cent:, motors could also have been avoided. In both cases thr osteosynthesis was only relatively stabile. In the first case (ill* 2a-c) wc had to deal with a subtrochanteric transverse fracture which had been nailed by exposing the broken pieces because it was not possible to fix the bone ends correctly. After the insertion of the nail the fracture pieces were firmly pressed together. X-ray controls after the nailing revealed that "the nail was lying in the marrow cavity the tip of the proximal fragment, however, pointed to the front". These findings were obtained by an X-ray taken from the side (ill, 2a). In the proximal frag- ment the nail is not lying in the bone axis. After a lapse of •nlyi K « y * * 111. 2a Subtrochanteric oblinue frac- ture after nailing., vh: ch xras an open operation because the reduction was not successful. The proximal fragment came to a displaced position in the anterior direction because the nail was not inserted in the correct axial direction. Primary healing. After a lapse of 12 days the limb is sub- jected to some passive exer- cises and exercises in the mam of walking while the patient was still confined t• bed. Thee exercises did net cause any trouble. After a lapse of four weeks the Ximb is subjected t© weight bearing . a 111, 2b Same fracture 9 weeks after the operation. For eight days the patient has suffered from pains at the fracture site. Distinct protective limping. The fragments have slipped, the nail has wandered in the lateral direction. Medially from the nail the old nail bed is distinctly visible. 111, 2c Same fracture 17 weeks after the removal of the nail. The shortening amounts to 3 centimeters. The bed©f the dislocated nail is still distinctly visible in the trochanter massive. 1b c 6 12 days when still confined to bed the limb was subjected to active exercises after the manner of walking. By doing so he did not complain about pains and four weeks later he was able to get up. Two Weeks after that he complained about pain when walking and a distinct limping was observed. The X-ray control (ill, 2b) revealed that the bone ends had slipped. The smooth trabeculas of the spongiosa reacted upon the constant rhythmic strain by an a.bsorption and thus the nail moved in the outward direction. The old hail bed in the trochanter can be seen. The final result (ill. 2c) was a shortening of 3 centimeters. A shortening will not occur in any case in which the nail is inserted in the proper axial direction if the fragments are not pressed together and if the bone is not subjected to weight bearing too early, All these experiences had to be made first. When for the first time such a fracture was subjected to weight bearing a fortnight later the X-ray control revealed that the nail had moved in the upward direction out of the trochanter and thus a shortening of 1 centimeter had occurred, (111. 3). We cannot agree with BOEHLER that spiral fractures in the upper third should not be nailed but treated with the wire extension "because they cannot be kept in place by the nail alone (l)”. Illustration 4 shows such a fracture wh:*ch was healed in good position without any shortening and without additional wire extension. The only thing to be taken into consideration is that the fracture must not bear weight too early and that in fractures in the upper areas the nail mu,ct be inserted medially from the trochanter major. Only in this way does it get sufficient hold and it cannot work its way out of the bone laterally. The shortening of 2 centimeters in a spiral fracture in the central shaft which showed a long splinter broken off (ill, 5) was caused by the insertion of the nail into the distal fragment and in this way the bone ends were pressed together. This circumstance was hot observed during the X-ray control after the operation because of the good general condition of the fracture. (Un- fortunately, this picture was lost). Because of the fact that only after seven weeks post-operative was the limb subjected to weight bearing, a further shortening was avoided, It seems to be unsuitable to use an additional wire extension or nail extension in cases of fractures with long spiral splinters or in eases of double fractures as recommended by BOEHLER. In applying his principles we would lose the great advantages the marrow nail operation grants us. It is only necessary to use nails which are long enough and which must be driven into the spongioses, of the distal epiphysis. It must always be kept in mind that this osteosynthesis is only '’relatively stabile". 6a b a c d Illustration 3a Pertrochanteric spiral fracture with separation of the chant or minor caused by streetcar accident ot a 6o yeai old woman. This picture was taken five days following iniury. Wire extension, followed by marrow nailing. Illustration 3b Same fracture after the nailing. Very good position- TN. separated piece with the trochanter minor is m good po- sition. The patient got up 2 weeks later, Illustration 3c Same fracture 4 weeks later. Under the influence of the weight bearing the fragments were firmly pressed together, shortening of 1 the nail has slipped out of tns trochanter above, because it jammed in the marrow cavity or the distal fragment. The nail was inserted medially to the trochanter (ana not through it), therefore a lateral displa ment ot curvature was avoided. The patient was able to lea: the hospital 32 days p.op. and to do all kinds of house work fhe nail was extracted 5 months p.cp. Illustration 3d 9 months. p,op#>4 months after the removal of the nail. Healing in perfect position with a shortenig of 1 centimotc The nail bed is not visible anymore. At the upper part of the trochanter a little callus head is observed. All joints are freely movable and pains are not encountered any- more. 6b Illustration 4 I11ustration 5 Subtrochanteric spiral frae- tufe with Separated third frag- ment 22 weeks after the nail- ing, N» shortening, all joints are freely movable. After the nailing confinement to bed for 5 weeks. After that the limb was subjected to weight bearing, 9i weeks p.op, the patient was released from the hospital as fit for service. Healed long spiral fracture in the midd._c of +• he shaft with a separated spiral splin- ter, The shortening amounts to 2 centimeters. The picture taken after the operation (which was lost) shows the s...m position of the fragments. It was not observed that on: fracture had become snorter, probably during the insertion of the nail into the distal fragment (counter pressure fre the direction of the knee), further shortening did not occur because the limb was si' jected to weight bearing onij seven weeks p,4p, In frac- tures of this kind the frag- ments must not be pressed to- gether, it might even be necessary to diminish the counter pressure during the - a sertion of the nail so that t nail may push that fragment to the former position. 7 In the beginning the nail finds sufficient hold in the spongiosa of the knee-joint- epiphysis so that the joint may either be moved or even bear '/weight. Under the strain of the rhythmic v/eight bearing the spongiosa spicules are absorbed very soon (4-6 weeks later) and probably even small chips break off the ends of the frag- ments. Thus the nail looses its hold. If in such a case the bone is subiected to weight bearing, shortening or bending will occur because the fracture callus is not yet strong enough. Its value is decreased by the constant bending and even a resorption in the vicinity of the fracture slot or a fracture of the nail may occur (see 111, 7). From the clinical p»int of view the danger of dis- placement is ouite noticeable by the fact that the patients complain about pains even in those cases in which their fractures were subjected to painless weight bearing previously. Special attention must be attached to this fact and such a patient must be confined to bed again. X-ray controls repeated in short intervals are urgently required < Any bending that occurs must be counteracted and an additional cast is required. Shortenings must be corrected Uhder anaesthesia by medns of extension and after that a wire extension must bo applied. If a shorten- ing or a bending does not exist or if move rents even with- out weight bearing are painful a 11 zinc:t (Unna*s paste) bandage according to the traction method wi11 sufficei Therefore special attention must be given to those cases. By doing so even serious comminuted fractures may come to a healing in good position without having to use a wire extension from the very beginning. (Ill, 6), Distally located spiral fractures were not nailed anymore because in two cases an additional wire extension was required besides the nail. In those fractures a nail- ing is not indicated. If the right technioue is applied those fractures will come to a good healing with wire extension alone. Table I demonstrates the exact data of the treat- ment , Tqble I.L Time required for the treatment and re- sults with the marrow nailing of fresh simple thigh fractures, Number. _ .mm Period of Unfitness for serv, I Final re II suit s _III _ Hospital 71 n. j 145 , (64-248) 198 66 — 3 — -2 Civilian hospital 47 55 (19-98) 109 f38-171) 44 2 Total 118 ; 108 (19-248) 162 (30-263) in =94$ 5 *4, 34 2 -1,74 7a b a Illustration 6a Comminuted thigh fracture after the nailing. The nail jams in the marrow cavity of the distal fragment. Th. osteosynthesis is stabile. The limb was subjected to active exercise 6 days later during the confinement oc bed and 6 weeks later it was subjected to weight bearing, Illustration 6b Same fracture 17 weeks pt»p. after the removal of the nail. All joints are freely mtvable5 no shortening. The unfitness for service lasted 137 days* 8 I. Healing without shortening*.curvature or impediment of the joints, IX, Slight curvature, shortening or impediment of the joints (decrease of ability to earn a living less than 20%) . Ill, Marked shortening, curvature or impediment of the joints (decrease of ability to earn a living amounts from 20-50%). It is remarkable that the unfitness for service of soldiers treated in military hospitals lasts *uoh longer than in civilians. It must be kept in mind, however, that our patients cases originate from eleven military hospitals and several surgeons participated in only two to three nailing •porations. It is a matter of course that these surgeons wanted to observe the patients as long as possible. Patients treated in civilian hospitals, however, could easily be observed even after their re- lease from the hospital, and thus it was possible to permit them resume their work. Our data nearly corresponds to those of FISCHER and MAATZ (l) (length of time reouired for the treatment in the hospital: 58 days, unfitness for work: 170 days.). In table II we see the results obtained by BOT’HLER (conservative treatment). Table II. Duration of treatment and results obtained in cases of conservative treatment of fresh simple thigh fractures (according to BOEHLER). Average Time of treatment davs J Missed annuities ing days based on % dis- ability Pat. treated in emergency hospitals 24» ] 627 ' 10,2 •tb«r than emergency hospitals 390 1819 22,6 L It must be admitted that in the • a9.-0 8 mentioned above we have not to deal with the same kind of fractures, for, the material of BOEHLER includes distully located fractures which were not nailed by us. It is a matter of fact, however, that »ven the longest period of medical attendance in marrow nailings is not longer than the average duration of treatment in the emergency hospital. The longest period #f incapacity for work is only one third of what it is with conservative treat- ment in BOEHLER*s clinic, which in this connection is one of the best. In this way the great advantages of this method - als» from the economic point of view are demonstrated. On the other hand the nursing of the patient is much easier and all those who have ever 9 had a chance to observe the strain wh:ch is taken from the patient when, in most cases even one day after the operation, the patients are lying in bed without any pains and soon may move the limb or even may subject it to weight bearing* will understand that the physicians as well as the nursing personnel and the patients are. enthusiastic about this method and that unden the influence of this enthusiasm the indications were sometimes too widely extended* As demonstrated in the table above many of our patients were employed at hard labor sometimes as early as 5-7 later. This may be done even if the fracture has not yet come to bony healing be- cause the very strong thigh nail provides sufficient support in all suitable fractures. The patient must, however, be kept under permanent control, for, even in fr sh fractures the marrow nail may break (l)* If in such a case the patient consults a physician not acquainted with this method, such a physician may fail to extract the nail immediately and replace it with a new nail. A 20 year old parachutist suffered a closed transverse thigh fracture in the middle from a jump. This was immediately nailed. Ten days later he was able to get up without pains and a;as released from the hospital 8 weeks later. 11 days after that when carrying a sack weighing a hundredweight he suffered from pains at the fracture site. Despite this fact he continued walking but his th:gh is somewhat bent at the fracture site. Therefore, he was sent to a military hospital "/here a plaster cast was applied for a period of six weeks. After that he was transferred t» a special department of the hospital in order to have his nail removed, (December 1944). Now, the fracture has come to a bony healing in a slight varus position (111. 7)# An extraction hook are long that it could be pushed forward to the end of the nail tip was not available. The bending, however, was not so oronounced that an osteotomy with another nailing would have been indicated. Therefore only the uoper part of the nail was removed and the patient was released from the hospital because of the general conditions of war. After that we lost sight of him but most recently we learned that he is in good condition. It has not yet been pos—■ to examine him again. Late curvature or shortening in cases of thigh fractures - besides the above mentioned cases wero not observed especially not after the release from the hospital. Most of our nailing •perations (98) were in fact stabile and only in those cases were the patient granted an early release from the ho spital. Fractures less than 7 centimeters distant from the knee joint were not nailed in our hospital. Operations of this kind, however, were tried three times in military hospitals but in all cases great difficulties were encountered. Two of the pationts 9a Illustration 7 Fracture of the callus and of the nail 10 weeks after the operation due to carrying heavy loads of 50 kilograms. The o st cosynthesis was not absolutely stab.1' * because the nail was not inserted medially to the trochanter but through it and the nail head was lying in the bone. Around the nail head rarefactions of the bone which proved that the nail was ’’working” . The callus is of little use. It is cloudy and cannot take the strain which it is subjected to because of the movements at the fracture cleft. Instead of removing the nail immediately and counteracting the curvature a plaster cast was applied for a p riod of six weeks until the fracture was healed again. 10 died and in the third case we declined to perform the nailing operation and the patient was treated with a wire extension which made a good healing possible. Fractures of that kind and spiral fractures in the lower third with a long spiral splinter are considered to be unsuitable for the marrow nail operation. Physic- Chaise not well acquainted with the technique of the /ire extension and who are not able to bring the fracture into a good position by this extension will probably not be able to perform a nailing operation without an exposure of the fracture site. Even if this process can bo carried through successfully an additional wire extension is required and therefore the advantage ob- tained is not so great. If by applying a wire extension satisfactory re- sults cannot be obtained and consecuently the fracture site must be exposed in such a case the fracture pieces should be united by putting a vire round the fracture pieces (in spirale fractures) or by applying a LANE1s plate (in transverse fractures) which will grant better results than the marrow nail. The nail can never find sufficient hold in the distal fragment and the protection against displacement is less than by an osteosynthesis with wire and plate. If an infection occurs, however, the nail will cause an infection of the entire marrow cavity and of the knee joint which may lead to a fatal termination or to the loss of the affected limb. il. r^ctures A final healing was obtained in 162 out of 171 cases of nailed log fractures and the result0 obtained are demonstrated by table III, Table Duration of treatment and result obtained by a marrow nailing operation of fresh simple leg fractures. No, J Duration stav in hosp^ of scrv.disab* Final result I II III Mil, Hospital 97 122 (30-220) nti (92-245) V 86 10 l Ciyiiian Hospital 65 67 (18-183) 131 (71-235) 63 2 Trtal 162 102 (18-220) | 133 (71-245) I 149 . =92% A , 12 m 1 7,4% 1 ® i| 0,6% 11 I, Healing without any shortening, curvature or impedi- ment of tho joints. II. Slight curvature, shortening or impediment of the joint Is • less tJL0% III, Marked shortening, curvature or impediment of tho joints 20-50%, Also in these cases the time renuired for the treat- ment in civilian hospitals is considerably shorter than in military hospitals due to the above mentioned reasons, The duration of service disability, however, docs not differ so much, Comparable statistics for the conservative treatment are not available. The kind and duration of treatment of the different types of fractures differ considerably, (transverse and spiral fractures etc.) and according to the extent of the displacement all varieties are possible. favorably located transverse fractures require an additional wire traction for about three to four weeks. Patients treated with a marrow nail, how- ever, may be released from the hospital two #r three weeks later and the wire extension will in no case be required. As to the incapacity for working WOEHLER estimates a time of about 3-6 months which certainly will not be required by the marrow/ nail rarthod. BOEHLER (l) has proved that in most simple fractures of the leg an unimpaired healing can be obtained with a conservative treatment by expert application. Three years after the treatment 85,26% of his 346 patients no longer received any pension. In comparison to that, an absolutely satisfadtory healing obtained in 92% of the cases must be considered as a real progress. In this connection it must be borne in mind that in none of the cases marked as II, (Table III) would the patients have received a permanent pension (i.e. 20% reduction of earning one's own living). In all these cases we have to deal with si1ght valgus positions or slight recurvations without impairment of the joints or slight shorteningsof less than 1 centimeter. On the other hand it must be taken into consideration that the mat rial published by BOEHLER was gathered in a clinic which is well-kncwn for its great experience and the good results obtained. Our own two unsatisfactory cases originated from the very first time when the marrow nail was still in- serted laterally from the tuberositas tibiae. In this way a recurvation is avoided, but in oblioue fractures a slight valgus position may iccur especially in case of an early weight bearing. Both of the patients were compulsory members of the sick fund and did not receive any pensions. In comparison to the above cases the case demon- strated by 111, 8 must be considered a bad result w hich, 11a a b c Illustration Ba Simple oblirue fracture of the leg in the cast. Illustration Bb Same fracture aft or the nailing, Tcpi.hnicalamis~ takes: The nail is too thin and too short, the valgus position was not corrected. An infection of the nail insertion site occurs wh:ch, because of the instabilo osteosynthesis spread to the fracture cleft later (the nail acting as a drain. Illustration Be Despite a long lasting treatment in the plaster cast the valgus position is somewhat increased. 12 however, is not due to the method but to the technique applied. In this caso only one nail (the thin nail) was applied (which in addition is too short for such a distally located fracture), and the valgus position was not eliminated. Therefore the osteosynthesis was only relativoly stabile and the valgus position increased later on. Besides all that an infection occurred at the point of insertion of the hail and at the fracture cleft and that is why an additional plaster cast had to be applied. The iaone was subjected to weight bearing after a good formation of callus* studying the picture with the plaster cast before the nailing it must be admitted that the physician would better n#t have nailed this fracture, For comparable purposes 111* 9 shows a similar fracture. In this case a long double nail was applied and a healing in perfect position achieved. ono exception (slight recurvation which was not counteracted (2)) the osteosynthesis was only relatively stabile in all cases which did not show satisfactory results. Considering the shape of the marrow cavity of the tibia and the necessity to use only curved nails only a few cases may be considered as Hsuitable" when bearing in mind that a stabile osteosynthesis should bo obtained by the double nail (transverse fractures located at least 8 centimeters from the upper and 10 centimeters from the lower ends of the tibia, furthermore oblique fractures and spiral fractures in the central third). Therefore KUENTSCHER and MAATZ have constructed double nails which spread in the distal end of the tibia and thereby obtain sufficient hold also in distally located spiral fractures and green stick fractures (turn-sproad- nails, nails with an inclined plane). One disadvantageous fact, however, must be taken into consideration: A special nail is renuired for each fr cturc and sufficient quantities of nails were not and are not yet available. Due to this fact very little experience was gathered with these nails so that we are not in a position to give a final evaluation concerning these special types of nails, In case of distally located spirnl fractures and oblique fractures, best results are obtained with the simple double nail. First condition, however, is that the nails are long enough, so that they may find sufficient hold in the spongiosa of the distal fragment. In this case it must be taken into consideration, however, that the osteosynthesis is only relatively stabile and that early weight bearing is not indicated. If necessary a plaster cast or a U-splint must be applied as an additional protection for the fracture. In 16 cases of leg fractures with a r'latively stabile osteosynthesis which were treated in my civilian practice the period of stay in the hospital came up to 23 to 183 days or 77 days on an average and the inability for work came to 68 to 196 days, i.e. 134 days on an average. When considering those figures it must be said that a considerable gain is obtained in comparison to the treatment with the traction method, This is demonstrated bj?* ■ «!• '&* 12a a D Illustration 9a Fracture of the same kind after a technically correct nailing with a sufficiently long double nail. The osteosynthesis is only relatively stabile therefore a short cast was applied f*r 4 weeks. After that a moulded splint was applied with which the limb is subjected to weight bearing. The splint is removed 14 days later. 8 weeks p.op. the patient was released to his unit. Illustration 9b 4 months p.op. after. the removal of the nail. Com- plete restoration. Treatment in the hospital and time of unfitness for service amounted to 74 days. 13 by Illustration 10-12, As in all cases of bone fractures the nailing of distally located or complicated leg fractures repulses technical understanding and skill. Fr0m the technical point of view the nailing of leg fractures is very simple. It is perhaps the simpliest nailing operation possible, ™hcre must, however, be taken into consideration that incidents may occur, v/hich the physician must know in order to avoid failurcs(l)i In cases of proximally located fractures the nail may slip behind the distal fragment if it is inserted too steeply and too distally (111. 13). In such a case the fracture must be brought into an anticurved position. Contrary to this the nail tip may slip behind the distal fragment in distally located fractures, if an anticurvation exists. In such a case a recurvation may be successful. In conformity with thoMdategorid imperative of the fracture treatment1' it may be said: "The distal fragment must be brought into that direction in which the nail tip points”. In one case the nail jammed in the corticalis of the distal fragment so much that it was impossible either to drive it in completely or to extract it. The surgeon reacted in the right way. He pinched the nail off and applied a blaster cast until a healing was obtained. After that the nail could be removed easily. If the situation is so complicated that it is impossible to open the fracture during the operation it seems not to be advisa.ble to, apply a marrow nail. The danger of infection is imminent and increases during needless and long lasting attempt. Therefore in such a case conservative treatment will show better results. Novertheless only in rare cases of leg fractures will difficulties arise during the operation. They must, however, be expected during the after treatment because in leg fractures the osteosynthesis can nev-r bo as stabilo as in thigh fractures. In tile cr.se of the groen*fti«k fracture demon- strated by 111* 14 the fragment which had turned 180° was expected to slip back so that it would not endanger the skin anymore. Despite the fact that the skin above the fracture site was extended due to a slight valgus position which intentionally' was not counteracted necrosis occurred 4 days later. Therefore the fragment which was not covered by periosteum anymore was removed. After that the plaster cast was applied, because the osteo- synthesis was only relatively stabile. The valgus position was not counteracted which could have been done easily, (result II was avoidable). In the c?.se of the comminuted fracture demonstrated by 111. 15a the fracture was absolutely stabile after the nailing. Therefore a U-splint war applied and the fracture was subjected to weight bearing two weeks later. In spite of the fact that the patient' complained about pains at the 13a b a Illustration 10a Spiral fracture of the leg with a fissure of the distal fragment extending in the downward direction, during and after the end of the nailing operation. The limb is subjected to painless weight bear ng 19 days later with an adhesive bandage. The patient is released fro. t b ■ hospital three weeks after the injury, Illustration 10b Three months after the operation, a ter the renov.il of the nail. All joints are freely movable. Illustration 11a Spiral fracture of the log with a long third, fragment a 16 year old, apprentice clerk. The fracture is only slightly displaced because the periosteal tube is not damaged. 13b Illustration lib Same f r a c t u. r o 16 d ?. y s a f t e r the nailin'-. Illustration 11c Same pa1lent same dayi thc damaged riaht 1 ca is absolut iy stabile and frcely m.ov~ able. Release from the hospital. From the third day on the log was sub looted to active exorcise and on the 11th day the pationt got up b c Illustration lid 6 weeks p.op. Good form- ation of calius. Pationt does hard labor. 8 days later serious hematoma in the right log due to a sudden fall. The frac- ture was not harmed. d Illustration lie 10 weeks p.op. The fracture healed, the nail going to be re- moved. Extraordinarily strong formation of callus oxtending from far above the fracture site to far below, which is no' due to the nail but to the separation of the undamaged periosteal tube which probably granted additional support. No rarefactions in the vicinity of the nail tip, i,c., the nailr have not"worked", o 13c a a Illustration 12a Double fracture of the leg with simult .ncous fracture of the same thigh eight weeks after nailing. The patient got up on the 29th day p.op. with the plaster cast in place till the end of the 8th we k p.op. Despite the fau that the formation of callus is very poor, the patient is able to subject his leg to painless weight bearing. The leg nail is removed 3-g- months p.op., 14 days later the th?gh nail is removed. Illustration 12b The fractures after the re- moval of the nails. Negli- gible impairment of the ankle .joint which did not exist any- more 12 weeks later when a follow up o x a. mination took place. During the operation tl leg was nailed first and then the thigh* b 13d 111u rtratio n 12b (Second part, Explanation see page 13c.) Illustration 13 The nail slipped behind the distal fragment in this proximally seated leg frac- ture which is due to the fact that it was inserted distally from the tubero* sitas. The fracture is not sufficiently enough distracted and should have boon brought into an anti- curvature position. 13e a b Illustration 14 a) Groonstick fracture after the nailing. The third fragment is turnod round 180°. Slight valgus position which was not corrected because oth rwise the skin would have been under tension above the separated frag- ment, Nevertheless a necrosis of the skin was observed 4 days later, Excision of the necrosis and removal of the bene splinter which was not covered with eeriest* It was forgotten to counteract the valgus position (}). Primary healing. b) Same fracture 3i months later. The defect is well bridged over with callus. Four weeks after the nailing the patient subjected his leg to weight bearing with an ambulatory cast. The patient has been without a cast for 6 weeks. The nails will bo removed. 14 fracture site weight bearing was continued. 8 days later the patient complained also about pains in the knee joint and therefore an X-ray (111. 15b) was taken in order to determine 7/hether the already very far protracting nail had worked its way out of this frag- ment. Unfortunately it was not observed that a shorten- ing had occurred. The final result (111, 15c) is a shortening of three quarters of a centimeter. The nail had moved into the spongiosa of the distal fragment because it had jammed in the corticalis of the proximal fragment . From the very beginning it would have been better in this case to drive it in more deeply and to subiect the limb to weight bearing only after some time and if so only with c. plaster cast. The pains com- plained about during the process of weight bearing should have been a warning signal. In case of a proximally located fracture the nail mtvos in the upward direction during the compression process and may cause troubles as demonstrated by 111, 16. Due to negligence in thiscaso the bone ends were not compressed after the •peration. If in prcximally located fractures the fibula is intact the compression will be hinderod and even in transverse fractures a bending may occur if the fracture is subjected to early weight bearing (ill. 17). The smooth bone spicules of the spongiosa and the very thin corticalis cannot stand the constant slight pressure. They are resorbed and the nail begins to”wander” which may be distinctly detected by the rarefactions in the vicinity of the nail head end (ill. 17c). In cases in which the osteosynthesis scorns to be stabile in the very beginning and the fractures may be subjected 'to weight bearing without difficulties, nailfl which are too short may cause a blocking of the freshly healed fibula and in this way may load to disturbances of the formation of callus. Despite the fact that in a transverse log fracture near the junction of the middle and distal third the nails were too shert and the fracture was not comprossed (ill. 18a) the patient was given permission to rise after a lapse of two weeks. ”Ho had, however, to use crutches in order to examine to which extent the fracture could be subjected to weight bearing”. 8 days later an X-ray was taken and it was observed that a lateral displacement of the fragments had occurred six weeks later the patient could walk without a stick and therefor' was released from the hospital to do garrison duty. In the X-ray a good formation of callus was observed at the fibula and tibia, the slight valgus position, however, was not noticed (111, 18b). 3 months later he was sent bask to the hospital because of • increasing pains at the fracture site and edema of the log. The X-ray showed a healed fibula and cloudy callus on the tibia with formation of flanges and the fracture slot remained open. Clinically a distinct springiness of the bones is observed, i.e. an unhealed fracture. In the vicinity of the nail tip a rarefaction of the bones is observed v/hieh oroves that the nails are not at rest. Therefore the nails must 14a a b c Illustration 15 a) Spiral fracture of the le~ with a marked splitting of the tibia after the nailing in good position, The nail length is correct but it was not inserted deeply enough. Therefore, the osteosynthesis is only ‘’relatively stabile”. Nevertheless, the limb is subjected to weight bearing with the U-splint 14 days later. The patient suffered pairs at the fracture cleft* b) Apart from this the patient complains about pains when bond- ing the knee joint. Therefore, 3 weeks p.op,, an X-ray is tea - • which proves that the nail did not move in the upward dirocti > i It was nrb'observed, • however that the fracture had become somewhat shorter in the distal fragment due to the moving of the nail in the downward direction* Therefore, the patient was permitted tc continue subjecting the limb to weight bearing. 14 days later the U-splint was removed, c) Three months p,op. the fracture comes to a bony healing. The shortening amounts to of a centimeter. The nail has moored furt.hcr in the downward direction. 14b a b Illustration 16 a) Oblioue fracture in the upper third of the leg after the nailing. The position is good, the fracture cleft is gaping. 10 days later the patient starts subjecting the limb to weight bearing. A very short time later he complains about pains when bending the knee joint. b) Fight weeks later: Due to the effect of the weight bearing the fragments wore firmly pressed together. Conscouontly the nail which was jamming in the distal marrow cavity moved in the upward direction. Illustration 17 a) Projcimally located transverse fracture of the tibia after the nailing. 14 days p.op. the limb is subjected to Y/oight bearing without any additional bandage. The patient complains about "slight pains !at the fracture cl d when stepping on the foot", b) Five weeks later: "still exist- ing distinct limping and moderate disturbances of the circulation cf the leg. Distinct formation of callus, (The valgus position which had developed in the mean- time was not observed). Zinc- gelatin bandage and plenty of active exorcise". 14 days later the patient wont on leave. After that removal of the zinc gelatin bandage, physiotherapy and half- day labor. a 14c Illustration 17c Three months p*cpi Healed under a slight increase of the valgus position. The rarefactions of the' bene prove that the nail had moved* c a » Illustration IS a) Transverse fracture of the leg at the junction of the distal and middle thirds after the nail ng. The fragments were not pressed together. The nails arc too short. b) Six weeks after the nailing the limb which was not proi ctod by a plaster cast was subjected to weight bearing too early. Due to thjs fact the fragments were pressed together but at the same time they came into a valgus position (wh"1 ch was not observed). Distinct formation of callus. Patient released to the unit for garrison duig* 14d Illustration 18c Three months later: The fibula has come to a healing. A slit running through the cloudy callus of the tibia is obscrv Rarefactions round the nai1 tip. From the clinical point of view the fracture Is spring ing. Pains and edemas. Ex- traction of the nails, oblicue osteotomea of the fibula, BECKfs drilling. Plaster cast Secretion of the drilling wourv for 14 days. Once again the varus position is not corrected c Illustration I8d After a lapse of three further months an ambulatory east 5s attached. The fracture came to a bony healing. It would have been better to leave the nails in place and to resect the fibula and to correct the varus position. A 15 be removed and the fibula Separated obliquely. After that multiple drilling must bo accomplished according to the principles of BFCK during which BFCK’s wire must not Mcut itself free and got very warm”, A plaster cast is required. A serous hemorrhagic secretion is ejected from the drill-hole for a period of 14 days, a serious infection, hiwever, docs not occur. A bony healing is achieved three months later after an ambulatory cast was apolied (ill* 18d), The removal of the nail as well as the drilling according to BFCK's principles was not necessary, the latter causing only an increase of the danger of infection. If in this case a piece of bone 2 centimeters long' had been resected from the fibula and if the varus position had been comoensated, which could have been accomplished easily, the patient would hive been taken care of better. In case of an early healed fibula and delayed formation of callus the physician should not hesitate to resect the fibula (not only to separate) and. to apply a plaster cast. In this case the nails are kept in place. rven if they are too short they grant an additional support and the fracture will soon come to a bony healing, (111. 19). In leg fractures it will hardly be possible to determine whether the osteosynthesis is stabile enough to make weight bearing possible. This is contrary to findings in thigh fractures (See 111. 9 and. 10, which by no means, seem to be If there is any doubt, hov/ever, as to the stability of the fracture with regard to the X-ray and the special kind of fracture it will be better to apply an additional plaster cast. It is a matter of course that edema is alway a' an insufficient stability. According to my own experience the only sure criterion is the subjective statement of the patient. If the patient complains about pains something must be wrong even if an additional plaster cast was applied. This is demonstrated by the following example: 111. 20a shows a spiral fracture in the lower third. The nails applied were relatively short. After the tjpplica- tion of a small ambulatory cast the fracture was subjected to painless wtight bearing 8 days after the operation. A displacement did not occur. 4 weeks after the operation the patient was released from the hospital and given ambulatory treatment with a plaster cist in place. 10 weeks after the operation the fncture was clinically healed. The formation of callus observed in the X-ray, however, is not yet strong enough (ill. 20b). Therefore the nails were not removed. The fracture was subiected to weight bearing without a cast and. 8 days later the patient started working, 6 months after the operation the fracture was bridged over by good callus (ill. 20c) and subseouently the nails were extracted. Minor rare- faction about the nail tips proved that the nails were semewhat loose. 15a a Illustration 19 a b a) Fracture of the leg with fracture of both ankle bones. It is n»t possible to get the fragments into the; right position because of the fracture of the ankle bone. Therefore the surgeon decides to nail the fracture using the open method, primary he ling. Plaster cast, 14 days later application of a U-splint with which, three weeks p.op., the limb is subjected to weight bearing. 12 weeks p..op., removal of the u-splint. The fracture of the ankle bone came to a healing. Massage and gymnastics. Three weeks later the- patient suffers pains and rod ness at the insertion site. After a confinement to bed for eight days these symptoms disappeared. b) 3 months p.op., the fibula is healed. The fracture cleft of the tibia is gaping. The skin above the fracture site is flushed and distinc tly warmer than the surrounding skin. Re- section of the fibula and application of a U-splint, 15b Illustration 19c 5 Weeks later the fracture is bridged over with bone and is stabile. The nail is removed. Fractures of this kind are better treated conservatively because of the danger of in- fection if the closed nailing is not successful* c Illustration 20a Spiral fracture of the leg after the nailing in a 50 year old woman. The nails are rather short; they should have been of such a length that they reached the epiphyseal line. Neverthe- less the patient was able to sub ject the limb to painless weight bearing 8 days later with a short walking cast. She was re- leased from the hospital 4 weeks later for ambulatory treatment. a 15c b c Illustration 20, , bt c Same fracture 10 weeks later. The fragments were firmly pressed together by the weight bearing and angulation did not occur. The callus is not yet stabile enough and there- fore the nail is kept in place. Weight bearing without the plaster cast. The patient resumed her work 8 days later in a factory, a) 10 months after the nailing the fracture is healed and a good formation of callus is observed. The nail may be removed. Slight rarefactions surrounding the nail tip prove that the nail has become somewhat loose. 16 111; 21a shows a similar fracture of another patient who in the first Y/eight bearing with a walking cast com*- plained about pains at the fracture site. After a tem- porary observation she wo.s considered hypersensitive. 14 days later the X-ray revealed a slight valgus position which was counteracted by the plaster cast during its re- pair. The patient was confined to bed for a period of 8 days and after that the bone was subjected, to weight b'aring; Once again her complaining about pains was not taken seriously and three weeks later the fracture had. slipped into the former valgus position and a slight curvature was observed, (ill, 21b). Once again tho position was corrected and then the patient was kept in bed with a cast. Three months after the operation the X-ray (ill* 21c) shows a beginning formation of callus* At the so.me time it was observed that the bone of the distal fragment was somewhat poor in calcium. From then on the patient did not complain about pains anymore and' because of the terror air raids sh6 was released from the hospital* 8 weeks later the ambulatory cast was removed by the family-doctor. 6i; months after the nailing the patient came to see us. The examination revealed that the fracture had come to a bony healing in valgus position (111, 21d), Tfie patient testified that in tho first weeks after th* removal of the cast sho had suffered from pains and edema, Therefore one should not trust so much in the nail. On the contrary all warning symptoms well-known from the conservative treatment of bone fractures should be ob- served. KUFNTSCHER and MAATZ (l) Y/rite in their publication on the marrow nail operations: " It is useless to insert a nail in a fracture of the tibia so far that the point of the nail gets a hold in the distal spongy portion of the bone. This hold is negligible and unreliable," In their explanation they point out that a tissue (and also a bone) which is subiected to a rhythmic pressure reacts with absorption at the spot of impact. This is certainly true, but, if in a leg fracture the nail is in- serted deeply enough, i.e., if it is driven in as far as near the epiphysis this hold, will suffice to stabilize the fracture so much that the patient may expose the broken limb and the fracture will come to a bony healing before the resorption begins. This is proven by the spiral fracture demonstrated by 111, 22 a in which the fracture cleft extends considerably in the downward direction. The patient used the broken limb without any additional cast 10 days after the operation without encountering pains and 4 weeks after the operation he started working. 111, 22b which was taven three months after the operation does not show any rarefactions in the vicinity of the nan 1 point. This proves that the nail had forged a stabile union with the bone. Thus it must be concluded that the deeoer insertion of the nail saves us the trouble of using the more complicated leg nails. 16a a b c Illustration 21 at bt c a) About the same fracture as in 111. 20 aft r the nailing with the cast in place in a 5B year old woman. Also in this case the nail should have been longer. She was allowed up after eight days with a walking cast. She complained about pains which were not given any consideration. An X-ray, taken two weeks later, proved that the fracture was angulated which pG immediately corrected. Confinement to bed for one week, after that, weight bearing. Once again the patient complained about pains at the fracture site, b) 9 weeks p.op. The fragments have slipped in the cast and a slight recurvature in a valgus position is observed. This po- sition of the bones is corrected by wedge shaped excisions of the cast, c) 3 months p.op. Beginning formation of callus. The fracture is somewhat shorter and a slight lateral displacement is ob- served, The axial direction, however, is correct. Painless weight bearing with the cast. Release from the hospital. 16b Illustration 21d 6-g- months p.op. The fracture healed with a slight recurvature in valgus position. Five weeks after the release from the hospital the cast is removed bj the family doctor. In spite of the fact that the patient suff pains when walking another cast was not applied. d Illustration 22a Spiral fracture of the leg which extends 'far into the distal third K he nails extend to the vicinity of the epiphysis. They are some- what spread but not to such an extent as spread nails so that they could find sufficient hold in the corticalis. Patient starts subjecting the limb to painless weight bearing 10 days n.op,, without any additional cast and resumes hard labor 4 weeks p.o p, a 16c Illustration 22b Same fracture 3 months p.op,5 v' eh came to a bony h aling. No rarefactions round the nail tip. The strong formation of callus on the bent side is not stimulated cal1us but due to the periosteal separation. 17 de never wore ‘obliged “t© apply an*'additional wire trac- tion, Even in spiral fractures m which the nails are too short and too thin the fragments will not shift in the cast if an early weight bearing is avoided, (ill, 23). According to my own experience, made in 21 cases of such fractures, the isolated shaft fractures of the tibia are particularly suitable to the nailing operation. Frac- tures of that kind, particularly transverse fractures, take a very long time to heal in case of conservative treat- ment (according to BOFHLER eventually 1-2 years). They show the tendency to heal in faulty position because of the blocking effect of the fibula. kith the marrow nailing, however, a cuick and unimpaired formation of callus is obtained and the employability is cuickly restored (111, 24)« These fractures may and must be exposed early so that a good compression of the fracture is obtained. This is especially true as to the isolated tibia fractures in the distal third, in which, howovo5:,the nail must be driven into the Vicinity of the epiphyseal line (ill* 25). The statement of RAISCH (l) that fractures of that kind are unsuitable for the marrow nail operation "be- cause the fibula acts as a blocking bone, which effect is accentuated when getting up with the nail" must cer- tainly be rejected. In the case mentioned by him the nail is too short and too thin. Therefore the nail is useless and conseoucntly we must not be surprised that in this case the formation of callus is as bad as without the nail. With regard to my own exprri ence I cannot a re© -with B0EHLERfs restrictions (second edition of this public .tion) as to the nailing of fresh simple leg fractures. On the contrary our indication is rather extended, for, the operation is simple from the technical ooint of view and it does by no means cause an additional strain upon the patient. Those physicians, however, who do not know the fundamental laws of treating bone fractures should not be allowed to make use of the marrow nail operation. Such a physician will not achieve good results even in case of a conservative treatment. All this may be proved by the records of the cooperative associations (insurance companies). an the Arm above the Elbow 131 cases of a total of 141 cases of nailed fresh fractures in the arm above the elbow could be studied as to their course until healing was achieved. The duration of the treatment and the results achieved are demonstrated by Table IV, Table IV. Duration of treatment and results achieved by marrow nailings of fresh simple upper arm fractures. 17a a b Illustration 23 a) Spiral fracture of the- leg in a 40 year old woman 8 weeks after the nailing. Despite the fact that a thin nail was used which extended to only one centimeter beyond the spiral fracture the patient was able to subject the limb to painless weight baring with the cast in place and was released from the hospital for ambulatory treatment. The nail was inserted, laterally from the tuberositas tibiae and consequently the slight varus position ccurred, b) 5 months p,op,5 the fracture is bridged over by bone and the nail is removed. A walking cast was applied for 3 months. After that the patient was able to subject the limb to painless weight bearing, 17b a b c Illustration 24 a) Isolated greenstick fracture of the tibia in a 40 year old soldier after the nailing. Clinically the fracture is stabile but the fracture cleft is still somewhat gaping, despite the fact that the fragments were pressed together. Patient starts subjecting the limb to weight bearing without any cast 6 days '‘.at er. b) 14 days p.op. The fragments were firmly pressed together by weight bearing. 5 weeks p.op., patient released from the hospital as "fit for service" except for assignment reouiring marching. c) 15 weeks p.op. the fracture is bridged over by bone. The nail will be removed. 17c a b Illuatration 25 a) Isolated fracture of the tibia in a 52 year old workman with oblique fissures in the distal fragment. b) Same fracture 16 weeks after the nailing bridged over by )one. The nail will be removed. On the fifth day p,op, the uatient started subjecting the limb to weight bearing. He was "eloased from the hospital on the 26th day. He resumed working °n the 46th day. 18 m mm™* -Xvt- Nr±J Time reouired Treatment in i^S_i|os£ital_. for the Restoration of employab. I Final re II suits III Hospital 78 108 ; (38-238) 177 (93-346) 76 2 0 Civ,Hosp» - 53 41 (14-11*) 78 (43-183) 52 0 1 Total L31 .... i 78 (14-238) 112 (43-346) 123 s 97,7% 2 a _1,5%_ 1' « 0,8% I. Healing without any shortening, curvature or impe- diment of the joints. II. Slight curvature, shortening, or impediment of the joints (decrease of employability of less than 20%) III. Harked shortening, curvature or impediment of the joints, (decrease of employability from 20 up.50%) Once again we see a considerable discrepancy bet- ween the duration of treatment in civilian hospitals and military hospitals. This discrepancy may be explained by the same facts mentioned before. Comparable statistics as to the duration of the conservative treatment are not available. The kind of employability as well as the stay in the hospital is not substantially shorter on ah average. If necessary, however, fractures in the arm above the elbow may be treated as ambulatory patients. There is no doubt, however, as to the great advantage that in general an abduction bandage is not rceuired. As to our own patients it must be taken for granted that in fact an early employability was obtained. The results obtained are by all means better: BOEHLER (1) has observed that 82% of the patients treated in emergency hospitals and 22,2% of the cases treated as ambulatory patients did not receive any annuities after three years. In all the cases treated in our own hospital only ono patient got an annuity of 20%, In this case out first nailing of a fracture in the arm above the elbow was performed. An infection at the nail insertion site occurred but it did not cause any general reaction. Later on, however, it caused the formation of secuestra, also in the fracture site because the osteosynthesis was not stabile enough. Con- scouently an impediment of 20% in extension and a slight impediment of rotation of the forearm •ccurred. In the case ?fhich showed result II we had to deal with a transverse fracture in the upper third. After the nailing the fracture was in good condition from above but the nail was inserted too far distally and it was bent laterally (ill. 26a). Therefore it did not find 18a a a Illustration 26a Transverse fracture of the arm above the elbow in the upper third after the nailing. Satisfactory position •f the fragments. The nail was inserted too far distal- ly. The only hold the nail finds in the marrow c vity which extends in the upward direction is the thin corti- calis of the insertion site. The hole drilled in there by means of an awl is in most cases larg r than the dia- meter of the nail. Illustration 26b Same fracture 3i months later with a typical angulation in the direction to the extensive side. Fracture is healed lat rally. The limb was subjected to some active exercise on the sixth day. Conseciuently the fracture came to a displacement until the nail finds suffi- ci nt hold on the opposite corticalis. The nail should have been inserted somewhat more proximaily and its bending should have been stronger, so that it might find some hold on the opoositc corticalis (correct position of the nail). Otherwise such fractures must be nailed distally and the nail bo driven into the spongiosa of the head. b 19 sufficient hold in the proximal fragment (in the arm above the-elbow the marrow cavity extends to the vicinity of the surgical neck). £ his condition was not observed and consequently the. patient subjected the 3.imb to wqight bearing six days I'.tcr. An A.-ray was taken 8 days later because the oati~nt had suffered from pains and because a “diffuse swelling of the arm above the elbow'1 was observed. This X-ray showed’that a lateral and backward angulation had occurred. An attempt to correct them under anaesthesia failed and thus the fracture healed in the described oosition (ill, 26b), An impediment of the joints and of the limb was not observed. Proxinally located fractures reouire an Insertion of the nail in the vicinity of the tuberculum majus. The nail should be bent at the head end so that It may jam at the corticalis of the opposite, side as demon- strated by 111, 26b (even if so done the osteosynthesis stays only relatively stabile and therefore early weight bearing must be avoided). The nail will never find sufficient hold at the insertion site. The hole in the bone was drilled with an awl and therefore it will always differ from the nail as to size and shape* Besides this the corticalis is so thin that it may break easily when the sharp edges of the nail cause a pressure on it (111, 29). It is better to nail fractures of this kind from the distal end particularly in those cases in which the proximal fragment is shorter. In thrs way an opening of the hemorrhagic soft parts is avoided (increase of the danger of infection). The nails must be driven in beyond the line of growth into the head. In this case it is useful to insert the nail somewhat above the middle of the arm above the elbow (if the hematoma does not extend that far). The thicker nail gets a stronger curvature, the inner thin nail is bent at its point in tho opposite direction. Thus it has the shape of an S. The nails spread (similar to the system of turn-sproad nails)in the head and find suffi- cient hold there (ill, 27a). The fractur' must bo strongly pressed together. If one forgets to do this tho nail point may perforate the head (ill. 27a). The nails jam so strongly in the distal fragment that they meet the least resistance in the spongiosa of the head end. If this perforation occurs outside the joint plane it is of no significance. An injury of the Joint cartilage, however, would cause serious disturbances which, are well-known in connection with the nailing of the neck of the femur. Therefore the nail must not be driven too closely to the joint plane. For a long time fractures in the neck of fehe. tsuarerus were only exceptionally treated with the abduction flpllmt and the traction bandage. After those fractures have been well set it will be possible to obtain such a strong jamming effect in most of the cases that 8-10 days later a DFSAULT-bandage can be applied. After that the 19a a a) Fracture of the collum chirurgicum of the arm above the elbow in a 53 year old workman - after the nailing. The exterior nail got a stronger curvature, the inner nail was somewhat S-shaped at its top. In this way the nails spread in the head and find sufficient hold. The fracture cleft is still somewhat gaping* The arm is put in an arm sling for three days, after that it is subjected to active exercise. After a lapse of ten days the •patient is released from the hospital for ambulatory treatment. Illustration 27 b) Same fracture 8 weeks lat r. Due to the exorcise the frag- ments were pressed together. The nails are jamming in the marrow cavity of the distal fragment and consequently they worked them- selves farther into the head. In doing so the outer nail has per- forated the bone because it had been driven in rather deeply. Sliding along at the inner nail this nail has worked its way into the distal fragment. The inner nail,.however, which had found a better hold stayed in its firmer position. The patient cannot take his arm up higher than 9i° because of the irritating effect of the nail tip. Therefore, the nails are removed despite the fact that the callus seems fcot to be compact enough. c) Same fracture 12 weeks p.op. The impediment of the shoulder joint has decreased and is only slight at this time. (Three month later no impediment at all). 20 limb may be subjected to movements. This kind of treat- ment is considered to be the most simple and well tolerated treatment possible. Therefore we do not want to nail those types of fractures on principle just like fractures of the neck of the femur. That is the reason why so far only three fractures of that kind were nailed be- cause a jamming effect could not be attained. The ex- periences made so far are so good thst we decided to prefer the nailing operation to the use of an abduction splint, In the distal third of the humerus the marrow cavity is often narrower in the sagittal section than in the frontal section. The outer nail of the double nail is broader than higher at the point and therefore in such cases the front edge of the nail must lie in the frontal plane, This means that the nail must be inserted at the rear edge of the tuberculum majus at such an angle that the opening of the transverse section points to the bent side. the nail may rotate or break, (111. 28). The nail should project at the insertion site fore one centimeter at a minimum. If it is driven in too deeply it will not get sufficient hold at the insertion site and the weight of the arm will distract the fracture and the nail head will slip into the marrow cavity. In this way a stabilization does not exist anymore because the marrow cavity is very broad in the proximal frag- ment, When using the limb rhythmic waddling movements at the fracture site will occur and in this way the form- ation of callus will be disturbed (111, 29), The patient suffered from a commotio and con- sequently was confined to bed for 4 weeks. An arm sling was not applied and movements of the limb were avoided. In this way a distraction was favored, When using the limb the patient constantly complained about pains which were considered to be duo to the nail, for, in the vicinity of the nail head a distinct form- ation of spicules was observed in the X-ray. Unfortunately it was not observed that the formation of callus was absolutely insufficient. If the fracture pieces had been pressed firmly together and if a oluster cast had been applied with the fracture in abduction, the fracture would have come to a healing, even with the nail, and an angulation would have been avoided (Result II). If the fracture is stabile after the nailing the arm must be held in an upward direction by means of a sling. The shoulder joint may be moved 3-4 days later, the elbow joint, however, only after a lapse of one week. The sling must be kept on for at least 14 days, Motion should by no means cause any pains* The osteosynthesis must always be considered to be not suffix ciently stabile if pains and swellings occur during or after the use of the limb. In such a case the arm must 20a a b c Illustration 28 a k b -t c a) X-ray in order to determine the length of the nail in case of a transverse fracture of the arm above the elbow between the middle and the lower third. The nail is lying laterally and not at the extensor side. Conseouently its distance from the film is smaller than that of the bone in the frontal picture. So we are deceived as to the relation of the nail to the marrow cavity, which in this case is particularly narrow. Besides this the nail was brought into a distal position whereas the operation must bo made from the proximal side. ■) It was not observed that the marrow cavity was narrower in the frontal direction than in the sagittal direction. Conscnucntly the nail was inserted with the front edge in lateral position (or: too far in front). In this way the nail cracked a piece of the bone on its flexor side. Due to the fact that the length of the nail(for purposes of the operation) was determined from the distal end it projected too much and consequently it had to be re- placed by a shorter nail. It turned so much in the distal frag- ment that its diameter equals that of the marrow cavity. When inserting the nail into the distal marrow cavity the fracture had to be bent off in the direction of the angulation because the nail tip had left the guide wire in front. This angulation vjas cor- rected only after the complete insertion of the nail which had caused an additional angulation of the nail at the fracture side. In this way it was impossible to insert the thinner inner nail. c) Same fracture 5 weeks after the nailing. Four weeks p.op,, th: arm could be subjected to painless manipulation. Due to a sudden strain the arm was subjected to, the nail cracked at the site of the fracture. (In the picture taken from in front the distortion is distinctly visible). 20b The broken nail is removed (the distal piece of the nail is extracted through a hole made into the bone above the fossa olccrani) where the new nail is immediately inserted distally, Nov/, the nail is lying in the correct plane and consequently do oh nails can bo used with • out difficulty. The ost osynthesis is so stabile that ten days later the patient may do some exercise. Six weeks after the sc cor. operation the patient is released from the hospi tal as "fit for garrison duty11. The nail was removed three months after the secor operation. Illustration 28d d Illustration 29a Transverse fracture of the arm above the elbow 8 months after the proximal nailing which was made in another hospital. After the nailing the patient was confined to bed for 4 weeks without any bandage because of a commotio. After that the limb was sub- jected to some exercise for a long period of time which was harmful. Again and again the patient complained about pains when using the arm for a long period of time. From the clini- cal point of view the fracture appears to be stabile. a The nail head slipped into the bone and consequently did not find any hold there. The rare- factions in the X-ray prove that the nail is "working". The de- layed formation of callus is due to the constant waddling move- ments at the fracture cleft. All this was not observed and therev*: fore the nail was removed because of the irritated margins. 20c Illustration 29b After the extraction of the nail a distinct springing (effect) was observed clinically. A slight bending occurred which was due to the firm- ly pressing together of the fragments* The fracture which war immobilized oi an abduction splint healed in six wool The delayed formation of callus is ncy due to lues but to the instabile ostoc synthesis. 21 be held by an abduction splint during daytime and motion exercises must be made as soon as painless move- ments arc possible. In those motion exercises the bending of thfc elbow is especially valuable. Motion exorcises by means of the pulley-traction method should be avoided because they favor a distraction of the fracture. In casb of an insertion from above the nail should be'long enough and driv-n into the diatal marrow cavity very firmly (strong counter-press’--ra fro." the elbow). It is not easy, however, to deter in© the exact length of the nail. The diameter of the distal marrow cavity must be measured thoroughly during the X-ray with th nail lying dose to the bone (l). The diametersmust be compared with one another and during the operation it must be taken care that the nail is lying in the proper plane. In doubtful cases it is bette to insert the nail somewhat more distally from the tuboreulum (if the fracture.is suitable to this kind of treatment). If necessary the nail may stick out a little bit more and a harmful effect is not to be expected. This procedure is not so harmful as is too deep an insertion of the nail, (ill* 30 and 31). Spongy transverse spicules may permeate the marrow cavity (111* 32) so that the (blunt) nail cannot pene- trate them. These spicules may not always be observed on the X-ray. If the fracture is in the distal third the nail does not get sufficient hold and complications of all kinds of an "instabile osteosynthesis" must be taken into consideration (late angulation, ball- callus and delayed formation of callus); Therefore we nail fractures in the distal third from below (contrary to BOEHLFR and KUENTSCHER), A possible exposure of hemorrhagically infiltrated soft parts seems to be less dangerous than the lack of stability (ill. 33). Transverse spicules possibly hindering the insertion of the nail may be pierced by means of a drill awl or an electric drill. If the marrow cavity is very narrow at t'*o distal end the double nail may burst the bone (111.34)• In such a case the only thing to do is to use a thinner nail, It must by all means be driven into the opongiosa of the head beyond the line of growth. This is especially true as to fractures situated farther proximal. Beyond the .junction of the m: ddlo and the lower thirds, the marrow cavity is consider- ably enlarged so that even a double nail may sometimes not find sufficient hold if it is not driven into the head. Otherwise disturbances of the formation of callus may occur (ill. 35). In such cases an abduction splint should be used so the nailing treatment in com- parison to the conservative treatm nt) is not consider- ably easier. 21a a b a b Illustration 30 Illustration 31 .) Transverse fracture of the arm above the elbow which was nailed proximally. The nail is too short. It does not find sufficient hold in the distal marrow cavity. Ten cays later the patient starts sub- jecting the fracture to some exer- cise without the arm sling which cause pain. b) Three weeks p.op.,The fracture was distracted due to the weight of the arm. The distal fragment slipped from the nail, Consc- ouently the arm was put on an ab- duction splint on which the elbow was movable. The splint was re- moved 4 weeks later and the patient could be released from the hospital. His employability has been re- stored after a lapse of eight weeks p.op. The nail was removed 4 months p.op. a)Transverse fracture of the same kind in a 41 year old workman. The nail jams in the distal fragment of the very narrow marrow cavity. It as im- possible to insrt at any fur- ther. The fracture cleft is somewhat gaping. The arm had to rest in an arm sling for eight days. After that the arm was subicctcd to some active exercise with the arm sling. Release from the hos- pital 3 weeks p.op. b) Four weeks p.op. The frag- ments were pressed together by the strain put on the arm and conscoucntly the nail moved upward and slipped somewhat out of the bone. The ab- duction is not hindered. Distinct formation of callus. The employability was restored 6 week p.op. 21b Illustration 32 The distal end of the marrow cavity shows a framework of spongy spicules which hinder a furth r ins rt: on of the nail. Illustration 33a Spiral fracture of the arm just ibove the elbow after the distal Insertion of the nail. The double sail found sufficient hold in the broad proximal marrow cavity. The drain to relieve the hematoma in the wound was removed 2L hours later. r?*o was put into «rn sling far :iffht days and after that it was sub- jected to sor.c exercise noY©riothe limb with the cast, i Recently we have nailed two Cases in which both of the bones were nailed and thus a plaster cast was not rccuired. Both patients were able to uSe the arms freely 4 weeks later and the healing did not show any disturbances. Atrophies of the wrist joint were not observed. In com- parison to the conservative treatment the advantages gained by the nailing method are so great that we have decided to nail both bones from now on, if they are suitable for the nailing method. L TJh.e_Dang.Qrs...if ..the . covered nailing, The possibility of infection was one of the main reasons why many authors did not want to operate fresh simple fractures of the long shaft bones. It is im- possible to deny that in many cases the indication was not strict enough and the insufficient technioue showed terrible results. With the closed nailing operation, however, only a small incision was necessary to insert the nail and therefore the danger of infection must be loss. In the first place, however, a suppuration in the fracture cleft must be avoided. According to the statistics at hand in 453 cases of closed nailing operations primary sup urations occurred in 3 thigh fractures, 2 leg fractures, 1 fracture in the arm above the elbow and in 2 forearm fractures. During the extraction of the nail an infection was observed in 1 thigh fracture, in 1 fracture in the arm above the elbow and in 2 leg fractures. 25a a Id Illustration 41 a) Radius shaft fracture with luxation in the distal radio- ulnar joint, b) Same fracture after the nail ing. Ideal position. The lux- ation was corrected. The frac- ture cleft is somewhat gaping because of the jamming effect of the ulna. The patient was re leased from the hospital 8 days later. The resumed working three weeks later. o) Same fracture 11 weeks after the nailing. The fragments were firmly pressed together by the weight bearing effect. The nail head slipped somewhat out of the bone. In this way a subluxation in the radio-ulnar joint occur- red which, however, does not im- pede the movements. The frac- ture is bridged, over by bone. The nail is ready for removal. In 4 out of 8 cases of primary infections the frac- ture cleft was impaired and 2 fatal terminations were ob- served in the cases #f thigh infections. All these cases arc of course a serious set back for the nailing method. We; must take into consideration, however, that all of the inf ctions could have been avoided, particularly those of the fracture cleft. I am myself responsible for the following fatal termination. A 20 year old pilot Suffered from a transverse fracture of the right thigh in the mid 1e third from a serious concussion and burns 6f first and third de- gree of the face, both arms, right leg and of the buttocks, 14 days after the accident I decided to use a marrow nail because it was practically impossible to immobilize the fracture due to motoric unrest and all movements of the patient caused unbearable pains in the fracture. I was well aware of the danger of infection considering the presence of suppurating wounds, nevertheless I htped to be able to prevent an infection by the immobilization of the fracture because the vicinity of tho trochanter was unimpaired and a good granulation of the wound of the broken legs was observed. The experiences made with marrow nail operations justified this opinion. A further reason why I decided to nail this fracture may lie that shortly before I had a chance to observe a fatal termination of an infection of a closed thigh fracture with suppurat- ing wounds of the leg which had boon treated by wire ex- tension. After the nailing the body temperature decreased considerably and the patienfr did not suffer from pain any- more. 5 days after the operation an infection of tho in- / tentionally unsutured operation wound occurred which was immediately opened. 14 days after the operation an abscess at the fracture cleft was observed which was also wide- ly opened. After that we observed a serious suppuration of the burns especially at the buttocks and septic tem- peratures, 7 weeks after the operation the kneo joint was infected and the leg had tt be removed in conseouence of which the patient died. The amputation preparation showed ring sequestra at both ends of the fragments and grey-blackish granulations around, the nail bed, Harrow phlegmon was not observed. The infection of the knee-joint was due to a tube abscess on the extensor side. Let us leave the question undecided whether or not the infection of the fracture might have been prevented without the railing. There is no d»ubt, htwever. that the new unpreventable injuries of the soft parts at the fracture site caused by the reduction are causing a con- siderable increase of the danger of infection. As_long £S_suppuratin£_wounds_exist .i n_the_body_asej>tic_f racturejs .be..nailed even if the nailing decreases the pains of the patient and facilitates his nursing. In a similar case BOFHLFR has also observed, an in- fection of the fracture hematoma. He is of the opinion that an infection can Ttc avoided if the nail is applied 27 before an infection of the burns occurs. It is very diffi- cult, however, to decide whether his theory is right or wrong bccau e, so far at least, further experiences have not been made. It is our opinion, however, that an operation of that kind should be made only in emergency cases and if so the hematoma should bo drained (l) (in the dependent direction in the septum intermusculare fibula) just as in nailed compound fractures. The hematoma is particularly endangered by hematogenous infections. The second fatal termination was due to the insuffi- cient technirue applied and the wrong indications; A 20 year old pilot was sufferin' from a transverse fracture located in the distal third, of the left femur, from wounds of the soft parts of the left leg, from a basal skull fracture and concussion. Immediate de- bridement of the wound was made and. a wire extension applied at the calcaneus because excoriations were observed in the vicinity of the tuberosita tibiae, after that an abscess of the left fracture and at the same- time an infection of the calcaneus wire occurred. Never- theless we decided to nail this fracture 8 days later " in order to obtain a good fixation of the fracture ends and because the patient appears to bo very unrestful''. The length of the nail was determined on the sound thigh because an X-ray apparatus was not available with which a picture of the entire thigh (with the nail laid over the fracture) could be made. ’'The longest available nail just about fit". During the operation, however, it was observed that "the nail is a couple of centimeters too short". Therefore the operation was stopped and the nail was left in the marrow cavity. A wire extension was attached to the tibia (ill, 42a). The operation wound healed primarily. 8 days after the operation " a cast must be applied with the traction bandage on the extension splint", because the patient is delirious. A decubitus occurred at the hollow of the kn»e and the temperature rose. The x-ray control showednapproximately proper axial position of the fragments". The decubitus in the hollow of the knee increased. Three weeks after the wounding we came to the conclusion that the permanent unrest of the patient reruires a repetition of the nailing operation in such a way that the first nail which was inserted previously should be driven in that much by means of a second nail so that both of the fragments are bridged over". After this operation was carried through (ill, 42b) a pelvis cast was applied. One day after the second operation the temperature rose up to 40° C and an infection of the operation wound occurred which was opened on the second (l) According to the proposal of FE LSFNRFICH we use with best results a long drain which is to be led to a small sterile bottle outside the bandage. In this way the form- ation of a humid chamber saturated with blood is avoided which would be a good medium for bacilli. a b c Illustration 42 a) Transverse fracture of the femur near the knee with accompany- ing infected wounds of the same leg, after an unsuccessful nail- ing with too short a nai1, in wire extension. b) The nailing operation was repeated despite the fact that a iccubitus existed at the knee joint and a longer nail was not available. The patient was suffering from a seri ous comaot:* o end vas very restless. The nail was driven into the proximal fragment by means of a second nail. Nevertheless the nail was still too short and conseouently did not find sufficient hold in the soft spongiosa. Wound infection at the trochanter, abscess at the frac- ture cleft, sepsis. Three weeks later the limb had to be ampu- tated. Fatal termination, ') Amputation specimen. Marrow abscess at the nail point. 2 8 day. 4 days later an abscess at the fracture site was observed by which 600 cubic centimeters of pus are drained off. Previous time was lost by blood and urine tests and by fighting the sepsis with sulfonamides and blood trans- fusions. i;hen, finally, three weeks latc-r the surgeon de- cided to amputate the limb the patient could not resist this strain. The marrow nail does not get sufficient hold in a fracture which is located so distally and a stabile osteosyn- thesis can never be obtained. Therefore an additional plaster cast was reouired anyhow. A nailing operation should never be made if the surgeon does not have a complete armamentarium at his disposal. Otherwise technical diffi- culties will arise. The first condition is to det~r ine the length of the nail as preciseljr as possible. After the first operation passed without any infection on no account should the second operation have been made after a decubitus was observed under the fracture site. The unavoidable injury of the soft parts caused by the re- duction of the three weeks old fracture must under those circumstances lead to an infection. The nail was not in- serted deeply enough and conseauently a marrow abscess around the nail point occurred. (ill* 42c). Let us leave the Question undecided whether or not the life of the patient would have been saved by amputating the limb in which the sepsis had started. When considering that a wire extension could not be applied to the tibia the best thing to do would have been to set the fracture as accurately as possible (eventually using an extension apparatus) and to apply a large plaster cast to the thigh. In case it was not possible to attain a go ~>d positic® of the bones such a malposition could have been corrected 4-6 weeks later after a. danger of infection no longer existed. Surgeons who do not kn»w well enough the princiv pies of the conservative treatment of fractures should less than ever be allowed to "nail". An early repetition of the fruitless nailing seems to be particularly dangerous for infection. In case of a thigh fracture which was described in detail earlier we could not remove the nail which was not in good position. When the nailing was repeated 9 days later an infection of the wound occurred. It did, however, not extend beyond the fracture site because of the stabile osteosyn- thesis. KUENTSCHER asserts that in simple fractures the infection is restricted to the insertion site. In the two leg fractures (ill. 43 and 111. 8,) and the fracture in the arm above the elbow, however, the fractur clefts were infected though the wounds at the insertion site were immediately opened. In all these cases a stabile osteosyn- thesis 'had not been obtained. Also in the case of a chron.f leal ofllteomyelitJU* after a thigh nailing and the serious in- - fectioh after a leg nailing in none of those cases could a stabile osteosynthesis be achieved, and this circumstance is probably due to the extension of the infection. If the nail is not firmly seated in the marrow cavity little dis- placcments take place which are due to the movements of the limb. The empty spaces originating in this way absorbed the infectious sccretum either by pressure or soaking. The stimulating effect of the shifting foreign body favors the process of inflammation. a b Illustration 43 a) Double log fracture after the nailing* The nailing operation ■/as delayed for 14 days after the njury because of an abrasion and •as done only after the wound was loalcd. The distal fracture is immobilized by the nail, the osteo- synthesis of the proximal fracture, however, is not stabile. Five days p,op. infection of the nail insertion site and of the other fracture hematoma, which soon ex- tends to the distal fracture he- matoma. Broad incisions, drainage plaster cast. An infection of the bone is prevented, b) Same fracture 3 months later. The fracture came to a bony healing, an ostitis is not observed. The wounds are considerably healed, 8 days the patient has subjected the limb to painless weight bearing. c) Same fracture .2 months later. The nail was removed 3 weeks before. The wound was kept open with the leg in elevated position. 10 days later the wound was healed. The gait was unhampered, no edema was observed. The shortening amounts to i centi- meter , c 29 If an infection occurs in cases of relatively suitable fractures (particularly in leg fractures )- in which the nail forges a stabile union in the beginning because it was long enough and because it was driven into the spongiosa, in .su$ch a case the infection is restricted to the insertion site if the wound is opened immediately and broadly enough, so that the pus may drain off. In case of such a relatively stabile osteosynthesis 2-3 w ebs later the nail becomes loose because of the absorption of the spongy spicules and as soon as some strain is ->ut on the limb (as long as the wound has n*t yet come to a healing) a "late abscess" may come into existence at the fracture site. Therefore it is absolutely necessary to open the wound immediately (especially in cases of leg fractures) and to put the limb to rest by a cast as long as an infection exists. It is unsuitable to remove the nail before the fracture is healed, for, by doing so, the nail bed will facilitate the spreading of the infection. In case of a true and stabile osteosynthesis an immobilization of the limb is not indicated. After the acute symptoms have subsided the limb may be freely moved and the patients may even get up. This was clear- ly proved by the experiences made with the nailing of infected fractures. If after the healing of the frac- ture the nail wound continues secreting, the nail must be removed. After that the limb must be kept in such an elevated position that the insertion site is lowest: otherwise a gravity abscess will occur in the marrow cavity. It stands to reason that an Infection or an in- flammation may occur because the nail (just as in fract- ures of the forearm ) is projecting too much and thus causes damage to the skin or because it was projecting out of the wound. All this may be prevented if we cut the nail off and smooth its edges by means of a file. In o.ll 4 cases of infections occurring after the extraction of the nail, complications arose because either adequate instruments for its removal were not available or because the nail had slipped into the bone, limb was not kept in a good resting position and therefore in one case of a leg fractur a gravity abscess occurred at the fracture site which, however, could be brought to sound healing aft r an incision had been made, I daresay, however, that after the closed nailing of fresh are avoidable if the indication ed_ tec hnioue_ a re_ correct A Only in six cases was the method of the open nail- ing of fresh simple fractures used in which either a re- duction was impossible or because the nail could not be introduced into the distal marrow cavity. Infections of the fracture cleft never occurred. Only in one case of a thigh fracture was an inflammation of tho nail wound observed. In this case the nail was projecting too far out of tho wound and this projecting piece of the nail could not bo removed because a metal saw was not 30 available # In spite of this we cannot agree with HAST to open the fracture as soon as difficulties arise for there is no doubt that br doing so the danger of infection is con- siderably increased. This was proved bv experiences made with old fractures. If the technieue applied is correct (the fragments must be distracted) good results will always be achieved. In no case frfe6>uld b.her:‘«per$LtiI6n be started before the operating suraeon has determined that it is possible to bring the fragments firmly one upon the other. If it is impossible to do that a wire extension should be applied. If a satisfactory position of the fragments cannot be obtained by this process the operation may be repeated one to two weeks later anyhow. If the necessity comes up to perform an open nailing an operation at this later time will in any case be more successful than to open the fr cture cleft after needless attempts which only disturb the asepsis and damage the tissue. One out of the three above mentioned fatal terminations has no relation to the nailing method. An 84 year old Wdman who had suffered from a sub- trochanteric transverse fracture of the thigh was treated with a 'wire extension after the closed nailing had failed, 5 weeks later she died of debility of circulation and pneumonia(1). In the two other fatal termination;*! (thigh fractures) the post-mortem examination showed a fat cmbolfc£«* In one of the cases the fat embolus was due to the insertion of a second rod into the nail which had jammed with the first rod. Thus the pressure upon the marrow had become so strong that a massive fat and air embolism occurred (2), Tho other patient collapsed while under the in- fluence of a lumbar anaesthesia. Nevertheless the nail- ing operation was performed after he had recovered and, according to the records ”rather strong forces'1 had to bo used to insort the nail. The patient died 2 days after the operation. The post-mortem examination showed an extensive pneumonia and a slight fat embolus to which the fatal termination could not be ascribed, according to tho findings of the pathologist. In other nailings three further cases of fat embolus wore observed at post-mortem examinations. A 12 week old thigh fracture wh‘ch was in bad position was mobilized under anaesthesia and after that a wire extension was applied. 8 days later a closed nailing operation was performed because of the danger of infection: Duo to tho difficulties encountered with this operation a debility of circulatory difficulties were encountered and 4 hours after tho operation tho patient died. The post- mortem examination showed a massive fat-embolism in both lungs. The fracture ends were closed by callus in which the nail was firmly seated (l). 31 In a 2“2 months old thigh fracture which was nailed by the open method the (thinnest) thigh nail was jamming so much in the proximal fragment that re* peated attempt* were necessary to remove it and to ro* place it bv a .leg nail. KifENTSCHER*0 tackle and pulley whieH wap u*ed far thi* purpope caused a cr»eking #f the *cck tf the femur. Efea the ipcertian of the leg mail wa» difficult pp that the aporation last d mere than twe hour*. Tfco tollappo aopurred during the operation which pauPei the f3tml terminatian. The post-mortem examination rowealod the oxixtefice of a fresh fracture • f the neck of femur and the trochanter ma i or was torn off (by the tackle and pulley). Besides this a slight fat-embolism was observed to which the fatal termination could not be ascribed - according to the findings of the pathologists. findings were not available (2). The ideal that a displacement of fat might be caused by the marrow nailing is obvious, for, vrith the ineertion af the nail large auantities of marrow and at the same time also numerous rcssclp are damaged. MAATZ(J) proved by animal tests that a fat dis* plac cment does occur - but” it is so little that it is of no importance even if 4 large tube bones are nailed at the same time”. Aft r all the danger of a lethal embolus is little because the insertion hole is larger than the cross section of the nail. Thus the bone marrow may drain ©ff by the nail wound and a considerable over pressure is avoided (KUENTSCHER). It is striking that in all of our cases fat-emboli were observed only in thigh fractures. Clinical symptoms (as for instance: collapse of circulation, increase of pulsation) which are indications of a fat release were observed only in two cases of com- plicated thigh nailings. All this may bo explained by the fact that the "emergency valve" at the insertion spot 'becomes rather small with the thigh nailing because of the presence of the guide rod in the nail. As long as the marrow cavity is open at the fracture cleft it may suffice in general but not in old fractures in which the marrow cavity is closed by callus or connective tissue. Furthermore it is striking that in all cases, difficulties may arise with the insertion of the nail. When in this case especially tkibqg and repeated strokes arc necessary in order t® drive the nail in, the jamming nail will transfer the strokes to the bone. A prolonged striking upon a bone may cause a release of fat from the bone into the circulation (LARSEM), Those "hard11 strokes will probably show similar dangerous effects. In order to prevent these dangers the nail should bo driven in by moans of strong "long" strokos and it should be replaced by a thinner nail as soon as jamming occurs 32 (in thigh fractures it will always be better to use nails which are too thin instead of their b.ing too long). Besides this the guide rod should be removed for some time after the insertion of the nail into the proximal marrow cavity in order to facilitate an easy outflowing of the compressed marrow. In all thigh fractures it seems to bo better not to perform a nailing operation as soon as symptoms arise which are indications of shock, a bad general condition of health, or general symptpms which point to an endanger- ing of the operation. Aftef all the nailing represents a relatively large operation and even a small displacement of fat may lead to a fatal termination as a conseciucnce of injuries which already exist or which may come up during the operation. If all this is taken into consideration a dahger of a lethal fat embolus scarcely exists in practice. In no case, however, should, this possibility be the reason for abstaining from nailing thigh fractures* Damages due to metal mpy occur if stainless steel (V2A-steel)is not used for the manufactoring of the nails especially for the double nails. Indications of damages of this kind are rarefactions aroUnd the nail (which, however, may not yet be mixed Up with rarefactions caused by mechanical conditions) and periosteal deposits* They will not cause any delay in the healing process. Never- theless it will bo pfefarablo to femov. the nail as soon as possible; A number of physicians have observed that changes of the blood picture and of the sedimentation l*ato settle take place. All those findings ire rather interesting from the theoretical point of view, they arc of no significance, however, for the practical value of this method. SUMMARY In frosh simple fractures the stabile osteosynthesis achieved by means of the marrow nail sh»ws the following advantages: In comparison to the conservative treatment the healing process shows much better results. The time required for the treatment in the hospital and the duration of unemployability is considerably shorter. The nursing of the patient is very much facilitated. The danger of infection, the possibility of dislocation of fat and damages due to metal arc avoidable In case of thorough indication, correct tochnicue and good asepsis. 33 These dangers are so insignificant that they are of no importance considering the advantages of this method. It must be kept in mind, however, that in fresh closed fractures a marrow nail operation should be performed only if that operation can be made without exposing the fracture site. If the osteosynthesis achieved by the nail is only "relatively stabile” its advantages are much greater in comparison to the conservative treatment. The danger of infection and the dang r of a late displacement are, however, considerably greater and therefore special con- sideration must be given to the after-treatment, Counter indications against the nailing of fresh simple fractures are: burns, blisters due to pressure on the skin, suppurating wounds or ether cotters of infection in the body, shock, bad general condition of health and a general endangering of the operation. In these cases the method of is the closed nailing for all simple fractures of the thigh between the trochanter minor and seven centimeters above the knee joint. Spiral fractures in the upper third and shaft fractures with a long spiral splinter may also be nailed and in these cases an additional wire traction is not reouired. The nail which should be long enough must be inserted at the proper spot and an early weight bearing must bo avoided because the osteosynthesis is only "relatively stabile". In distally located spiral fractures the nailing is of no advantage and therefore it is better to abstain from nailing those fractures. In leg fractures the nailing is particularly easy from the technical point of view but a true stabile osteosynthesis will be obtained only in transverse frac- tures, short oblioue and spiral fractures in the middle third. Even oblique and spiral fractures in the lower third may get such a strong hold by means of the usual double nail that the application of an additional wire traction is not always indicated. In these cases the nails must be driven into the line of growth (epiphyseal line) and sometimes an additional plaster cast or a U-splint will be reouired. In these cases and in fractures in the upper third the osteosynthesis is only relatively stabile and therefore special attention must be paid to weight bear- ing and thorough observation. Nevertheless the nailing method grants considerable advantages. If the fibula has come to an early healing it should be resected without delay in order to prevent a blocking effect upon the formation of callus first of in those cases in which the nails are too short. In those cases the nails are to be kept in position. Isol^i£d_fraptures„pf_the_tibia are particularly suitable to the nailing method* They must, however, be brought to an early weight bearing; The danger of a spreading of infection to the frac- ture cleft is rathr imminent if the osteosynthesis is only relatively stabile. Therefore the counter-indication should bo especially strict in leg fractures because of the imminence of infection. First of all fr ctures with considerable swellings of the soft parts, blist-rs or injuries of the skin should be excluded from the nailing. The closed nailing is the method of choice also for simple .sjhaf t_.fr t ur_s_of _t he_arm_abpv e_t he_ el bow. Frac- tures in the upper and middle third should be nailed proximal- ly, fractures .in the lower third, however, distally. Fractures which are less than 7 centimeters distant from the shoulder joint should be nailed from the middle part of the arm above the elbow. The nails must be driven into the nail head and the inner nail should be somewhat S- shaped, Fpacturos of the ceemed teacher Fritz KOENIG. Also in tbsao fractures it is possible to achieve a stabile osteosynthesis, (at least during the first weeks) if the technioue applied is correct (length of the nail). Therefore the ouestion arises: Why should we use an additional wire which causes further injuries because of the separation of the periosteum? If a stabile osteosynthesis cannot be obtained b*r the nail an additional wire loop will not be of any creat help. This at least is my own wipinion.If an infection occurs the n il which does not forge a stabile union with the bone will be especially endangered (2). It will bo better to renounce the nail therefore-in such a case and to use a wire loop or Lane’s plate if necessary. If in such a case an infection occurs it will at* least not spread to the marrow cavity. In the following let me refer once more to the "additional immobilization" of the limb; one of the basic principles of the treatment of accidental wounds is to immobilize the injured limb as long as a danger of infection exists. The nail immobilizes the fragments and not the soft (2) In BOEHLER*s cases there is no compound fracture that came tro an aseptic healing with an additional wire loop. There are, however, some cases in which an infection occur- red . 37 parts. Therefore the limb must be kept immobilized even after the nailing. Most suitable for this purpose is the un-uphoIstered cast with a window or the un-upho 1stered cast-splint which must be attached in such a way that it may bo kept in position during the change of dressing, i * The limb should be kept in such a position that tho drain in the wound is at the most dependent point. If, however, Braun's splints are used the insertion site must be at the most dependent point. Blood or wound secretion extravasating from the wound will easily drain off in the direction to the the insertion site along the nail which acts as an ideal drain* Event iully an infection may be transmitted to that site. a) Frekh compound thigh fractures. Nineteen fresh compound fractures of the femur were nailed but the course of only one of those could be ob- served until a final healing was obtained. This was the only fracture with an inf ction of the wound; Open fractures of the left thigh and leg after a motorcycle ac ident in a 20 year old sergeant* left thighs, Double green-stick fracture in the middle of the thigh, The central fragment is 4 centimeters long (ill, 44a). The 6 centimeter Iona open somewhat torn up wound reaches to the bone. Left leg: Green-stick fracture of the tibia, eomewhat below the middle, fracture of the fibula in the upper third (see 111, 48). Torn up and dirty wound which is larger in size than a hand and from which the bones project. Immediate operation under anaesthesia: Widening and trimming of the thigh wound. All torn up and dirty parts of the musculature arc removed and the blood is staunched. Exposure of the fracture site. The proxima.l fragment is elevated somewhat by means of a bone hook. After that the guide rod is inserted into the marrow cavity and driven through the skin at the trochanter. Insertion of a 38 centimeterg long marrow nail by using the guide rod until it appears at the fracture cleft. ((An X-ray to determine the correct length of the nail was not taken). Then the guide rod is extracted and inserted into the nail from above. The middle piece is slipped over the nail re*- spectively over the guide rod and then nail and guide rod arc driven into the distal fragment until finally only about 2 centimeters are projecting out of the trochanter, (ill, 44b) MARFANIL-PRONTALBIN-powder is distributed in all wound pockets and the depth of the wound. Three drains were applied. A row of sutures of the wound is made. The wound is closed at the trochanter after the application of Marfanil-Frontalbin-powder for all wound pockets and a rubber drain is inserted. After that, trimming of the wound and nailing of the leg fracture with only one nail a b c Illustration 44 a t b h c a) Comminuted compound fracture of the left th: gh (with accompany ing compound fracture of the left leg) due to a motorcycle acci- dent. The wound is slightly mutilated and six centimeters long. Wound excision and marrow nailing from the fracture site imme- diately after the patient was brought to the hospital, vfound suture and insertion of three drains. A rubber drain is used in the trochanter wound. VOLKMANN splint. Next day the tc: per.atu.ro rose to 39° C, Change of dressing and irrigation of the wound only four days later. Only three weeks later was the wound wide- ly opened, b) Same fracture after the nailing. The nail is too short, it does not find sufficient hold in the distal marrow cavity, c) Same fracture seven weeks p.op. Distinct rarefaction of the corticalis at the distal fragment and around the nail. Again and again the drainage was dammed up and incisions were necessary, d e Illustration 44, a e d) Same fracture five months p.op. The central fragment is seouestrated. At the proximal fragment a typical ring sequestrum was cast off. At the distal fragment the nail has worked its way into the corticalis because the osteosynthesis was not stabile enough. The fracture came to a valgus position, at the inner side a beginning formation of callus is observed. c) 8 months after the injury the fracture is bridged over by callus on the inner side. Above the nail point a thin formation of newly grown periosteal bone is observed. There arc fistulae in the wound. The patient subjects the limb to weight be .ring. 38 after which the fracture cleft was still gaping, A defect of the skin of the size of a 5 mark coin cannot be closed. M.P.-powder-drain. The thigh and the leg are immobilized in a Volkmann-splint, In spite of the fact that one day after the operation the patient shows temperatures higher than 39 degrees which are increasing, the dressing is changed only four days later and a considerable secretion of pus coming from the wound is observed. "Therefore to begin with some (l) of the sutures are removed." After that11 the wounds are thoroughly cleaned every second day with a solution of RIVANOt and RIVANOL-i/icks are inserted into the wound". Fourteen days aft r the operation a pelvic cast with a window is applied and finally (three weeks after the operation) the wounds are widely opened because the temperature of the patient had not yet de- clined. In the X-ray wh‘eh was taken 4 weeks liter (in. 44=) wo observe a distinct rarefaction of the cor- ticalis of the distal fragment. Again and again retentions of pus occur which require ifurthei* incisions. The third fragment becomes necrotic and from the proximal fragment a (typical) ring seouestrum id cast off. The nail which is too short penetrates the- corticalis (ill 44d), Thus a slight bending of the fracture occurs but at the inner side of this curvature an abundant formation of callus is growing which causes a bridging over of the fracture (7 months after the operation) so that tto limb may bo subjected to weight bearing (111. 44©)• Vhe leg wounds which had cast off some Jeouestra are cloied. now but a fistulization of the thigh still exists. months after the operation (December 3944) the ability to walk is restored to such an extent that the patient can get a Christmas furlough from which he did not return because of the events of the war, A short time ago he Reported that the nail was removed one year after the accident, 14 days later a refracturc had occurred which came to a healing in a varus position of 160°. Half a year later another formation of abscess is observed at the thigh and 7 seouestra had to be removed. Since then tho wounds came to a healing and other sequestrations did not' take place. His hip is not afflicted but his knee and foot joint became ouit© stiff. Total shortening : 6 centi- meters. It 13 very difficult to decide whether or not the trimming of the wound was really sufficient. It is a matter of fact, however, that it is wrong to direct the drains through the wound, It is clearly proved • by the course of tho disease how dangerous the wound sutufo. ©ty bar first of all in those cases in which the wound is not inticdiatcly widely opened(l) after an infection of the (l) Again and Again I have noticed that particularly young surgeons dislike open wounds and therefor- want to retain the skin sutures. Conseouently they hesitate to open the wound widely. Maybe they think of previous exporienceswith ab- dominal operations (abdomen eviiaraftionf abdominal hernia). In order to'n*©t nnidoi I %0a9h .m3r fro© the vary beginning to renounce the suture of the skin entirely 39 wound occurred. First of all, however, a stabile osteon- synthesis had not bee achieved because the nail was too short. Therefore the infection of the fracture cleft, the necrosis of the middle fragment, the ring seoucstrum at the proximal fragment and the oenetrating of the nail into the corticalis must be ascribed to that instable osteosynthesis. Also in the case of the open fracture demonstrated by 111, 45 the osteosynthesis is only relatively stabile. Nevertheless a primary healing was achieved but in t-is case the nail was applied only 14 days after the injury i.e. at a time when the wounds had already come to a he aling. The grcc-stick fracture in the central third was complicated because of a bleeding wound 3x1 centimeters on the inner side. The wound was trimmed and a suture ap- plied* 2 days later a splint was a 'plied after that wire extension. 14 days after the accident when the wound had already come to a healing the fracture was nailed after its exposure from the outer side. 2 days after the operation a large size hematoma was opened at the fracture site and irrigated with salt solution. With an exception of two days during which the patient suffered fro: an increase of fever (12 days after the operation) the course of the healing process was uncomplicated and four months after the accident the patient was released as being fit for service after the nail was removed. The diameter of the marrow cavity below the fracture site is so wide that a true jamming effect of the nail cannot be obtained. therefore the nail should have been much longer. The osteosynthesis was only relatively stabile which may distinctly be proved by the rarefaction seen in the X(-ray in the area of the nail point in the picture taken 9 months after the operation (ill. 45)* It is certainly less dangerous to wait for an aseptic healing after the trimming of the wound and to begin with the nailing operation after that. In such a case however, we must take into consideration that we have to deal with a simple fracture and therefore we should nail without exposing the fracture cleft. This result was achieved in 6 cases, four of which must, however, be con- sidered to be only relatively stabile regarding the peculiarities of the fractures in ouestion. In all cases in which a true stabile osteosynthesis can be obtained such an attitude sec s not to be indi- cated because one will forego the advantage of the elimina- tion of the danger of infection which is due to the imimobilization of the fracture. In al1 cas's, however, In *(even in abdominal surgery) as soon as a danger of infection exists, I even reject the so-called approximation sutures because they may easily lead to a true suture of the skin. Illustration 45 Compound fracture of the femur 3 months after the open nailing, w ch was made 7 days following the injury and when the primarily trimmed wound located on the inner side had healed. Primary healing. The osteosynthesis was only relatively stabile because the nail did not find sufficient hold in the broad distal cavity. In this way the rarefactions round the nail tip occurred. The nail should have been driven into the epiphysis. An infection did not occur. 40 which only a relatively stabile osteosynthesis can be obtained this procedure will be better than tho primary nailing. In those * 12 cases of primarily nailed fresh compound fractures the osteosynthesis was stabile and all cases healed without any disturbances of the wound* In those 13 fractures which could bo observed until a final healing was achieved the treatment in the hospital lasted from 21 to 90 days or 69 days on an aver- age. However, the duration of unemployability of those cascr amounted to 30 to 138 days c>r 115 days on an average* A distinct difference betv/een tho primary Inailing and the nailing after the healing of the trimmed wound could not be observed. All 13 cases healed v/ithout an impediment cf the leg. In EHALTS 1 s cases which had healed ”Y/ithout any complications” tho average treatment lasted 200 days. Nine of h:s cases of compound thigh fractures would have been suitable for the nailing operation. In two cases in which the traction was too strong, pscudarthrosis occurred v/hich had to bo eliminated - operatively but in one case an impairment of the knee joint remained* Therefore there is no doubt that the nailing of fresh compound th:gh fractures shows great advantages in comparison to the conservative treatment* b) Leg Fractures. At my clinic all compound, leg fractures were former- ly fixed b means of the twisted wire method or by Lane*s Pla tes, If, however, a primary wound excj sion was pos- sible (l) we frcouently have used the marrow nail method. Wo did not treat only those cases which were !,very suit- able” (cases of that kind are rare) but also those in which tho osteosynthesis was only relatively stabile (oblicue and spiral fractures below the middle of the bone etc,). It must be admitted that many a technical mis- take has been made (by using nails win ch 7/ere too short or b~ subjecting the limb to weight bearing too early). The same conditions prevailed in the field hospitals, A total of 39 fresh compound leg fractures were nailed, the course of 29 of which could. be observed until a final healing was achieved. In those 39 cases of nailed fractures an infection of the wound was observed in 12 cases. In four cases the in- fection had extended to the bone and caused a cartin'" off of sequestra. (l) In general small smooth wounds out of which bone rplint- ers woro projecting were not trim ed by us. Cases t hat kind were treated cons ervatively, The comminuted fracture demonstrated by 111. 46a was complicated because of a wound which was larger in size than the palm of a hand in which there were several bone splinters and torn up musculature, The skin which surrounded the wound was badly damaged and contused and on the skin of the leg there were several abscesses of the size of 2-3 mark coins. Consequently it was not possible to cover the entire bone by soft parts after the excision of the wound and the nailing. The exposed splinters were removed. The nail stabilized the fracture satisfactorily (ill. and consequently a serious in- fection did not occur. At that spot where the bone was exposed corticalis sequestra were cast off so that the fracture cleft became wider but the broken out splinter was well attached to the bone (ill 46c), Eight months after the operation the wounds were closed except for a small fistula and the nail was removed because the fracture cleft was bridged over by bone. A l; the fracture cleft a se- questrum of the size of a grain of barley was observed which was removed 14 days later. After that the wounds healed auickly and the patient could be released from the hospi- tal. A late examination took place 11 months after the accident which showed that the wounds as well as the leg abscesses were healed and that the fracture was com- pletely stabile and suitable for weight bearing, A shortening was not observed, the impediment of the ankle joint amounted to 25$. The X-rays (ill 4&d) showed t at the structure of the callus was not yet suffici ~.nt it the medial side but symptoms of an osteomyelitis were not observed. in the fracture, demonstrated bjr 111. 47a, however, a considerably smaller, relatively smooth oblique wound existed at the level of the fracture site which was trimmed and primarily sutured. ihis operation and the one described above were made by my chief-physician. After the nailing the fracture was clinically stabile but the osteosynthesis was only relatively stabile be- cause the fracture was rather deeply seated. The nail could have been somewhat longer* Therefore a plaster U-splint was applied (111* 47b). Two days after the operation the fever rose up to 39° and con- sequently the wound was widely opened and discharged a puru- lent bloody substance. Despite the fact that a cast with windov/ was applied an osteitis occurred at the fracture cleft mainly o-f the proximal fragment and at the broken out splinter. An infection of the marrow cavity, ho?/ever, was avoided, (ill. 47c), A part of the splinter was cast off as a sequestrum but a good periosteal form- ation of callus bridged over the fracture cleft. Four months after the operation r-arefactionsof the spongiosa were observed in the vicinity of the nail (ill 47d). After the removal of the sequestrum the wound closed pretty soon, 5-2 months after the accident the healing of the fracture had progressed so much that the nail could be removed, A late examination six weeks later proved thet the nail channel could be recognized only at the insertion site. A coarse defect with two small sequestra was observed at the fr cture cleft which, however, was not surrounded by sclerotic bone (ill. 47e). Fistulae and swellings end an impediment of the limb were not observed. The two *■> b Illustration 1+6 a +■ b a) Comminuted fracture of the right leg which was com- plicated because of a wound the size of the palm of a hand with the bone and several splinters being completely loose. Serious damage of the musculature. The skin near the wound was seriously contused. On the outside of the leg several ulcer a cruris were observed. The wound ex- cision was made immediately and the loose bone splinters were removed. Nailing operation , Due to the existence of the ulcers, the wound was kept widely open because a graft- ing of skin was not possible. The fracture site was part- ly uncovered. Application of a splint and of a ■"’’rain in the posterior direction, b) Same fracture after nailing. The double nail which was driven into the spongiosa found a good hold in the distal marrow cavity. The fragments were well pressed together. The osteosynthesis was stabile. c d Illustration 46 c+- d c) 42 months later. In front the exposed bone was partly- cast off from the inside so that the fracture cleft gaped at that point. The greenstick splinter* however, reaches from one fragment to the other. Symptoms of an ostitis were not observed. The nails forge a stabile union with the bone and reactions were not observed. The splinter had been removed 4 weeks after the operation and the patient had started sub- jecting the limb to some active exercise and exercises after the manner of walking. The wounds healed with exception of two spots the size of a 5 mark coin. A small fistula ex- tended to the bone. All joints freely movable. d) Same fracture 11 months after the injury. Bony haling. Medially the callus appears poor in calcium. The wounds were completely closed. No shortenings'-Were observed and all joints were freely movable. 41c a b Illustration 47 a 4- b a) Compound fracture of the log with a relatively smooth wound which is 4 centimeters long and extended oblieucly. Wound trimming, open nailing, drainage in the posterior direction, primary suture of the wound. U-shaped plaster splint. b) Same fracture after the nailing. The nail should, hwe been driven to the epiphyseal line because it could not find suffi- cient hold in the broad marrow cavity. The osteosynthesis is only relatively stabile. An infection of the wound occurred which was immediately opened widely. Cast with a window* 41d 4 d Illustration 47 c+d+c c) Same fracture two months later. Loosening of tho bone structure at the fracture cleft. Beginning necrosis of tho cast off greenstick splinter but, at the same time beginning formation of callus, d) Same fracture 4 months p.op. Seauestra at tho greenstick splint- er. Medially and. behind a good formation of periosteal callus was observed which extended far below. This was not due to the presence Df the nail, for, at the side at vhich it is lying a new formation of periosteal callus was not noticable, distinct rarefactions round the nail sip which are an indication that the lail was not firmly so&tod. The se- mes t rum was removed and after that /he fistula healed. The nails rcre extracted 4"2 months p.op. ) Same fracture 7 months after the e njury. It is bridged over by bone. Two small sequestra wore ob- icrved at the fracture cleft which were spontaneously cast off later, he nail bed is noticable only at the insertion site. 42 seouestra were cast off spontaneously and medical assis- tance for that was not necessary, The late examination which took place 1-g- years after the accident did not prove any limitation of the movements and the fr-.ctu.rc cleft was barely recognizable. The fracture had come to an ideal healing (picture was lost). In this case the broad opening of the wound and the sufficiently long period of immobilization of the limb have obviously prevented the infection of the marrow cavity. In the leg fracture demonstrated by 111, 48 (and in the thigh fracture of 111. 44), however, a serious infection of the marrow cavity with extended periosteal abscesses and abscesses of the soft parts, the formation of seouestra which reruired several incisions were due to the negligence of the above described procedure. Even later, several seouestra were cast off until one year after the operati n the nail was extracted. Due to a sudden fall ■§• year after that a refracture with an accompanying infection occurred in the course of which several other seouestra were cast off, A defect pseu- darthrosis had to be expected and conseeuently the fibula had to be removed. final result is a shortening of 3 centimeters with a stiffening of the knee joint and of the foot joint and scar tumors occurring again and again. In leg freotnreo .the primary suture «f tho wound seems to bfr particularly dangerous. In 12 out of 15 cases ( 80. >) a wound infection occurred which in one case extended to the marrow cavity and in three cases caused the casting off of seouestra. All 17 wounds how-ver, wbach had been drawn together by adhesive tape came to a good healing, Only in one case of a relatively stabile osteosynthesis and early healed fibula a late abscess with formation of seouestra occurred after the patient had worked two weeks (i). Even in those four cases in which the wounds had to be kept widely open because they were too extended and very dirty in only one case was an infection of the bone observed. It stands to reason that the suture of the wound is particularly dangerous as soon as the osteosynthesis is not absolutely stabile. The immobilization of the limb is a precious means in fighting infection. In six out of 1 sutured wounds the osteosynthesis was stabile, three cases came to a ptinary healing and an infection of the bone never occurred. See table V, Table_V. Healing of the wound in fresh open leg fractures: S- stabile osteosynthesis rss relatively stabile osteosynthesis 42a Illustration 48 Compound fracture of the leg(with simultaneous compound femur frac- ture (111,44)) 8 months after the nailing. The sutured wound was not immediately opened when the infection was observed and con- sequently an infection of the marrow cavity and periosteal ab. - soeu*