FRACTURE OF THE HUMERAL EPIPHYSIS IN OLD DISLOCATIONS OF THE ELBOW BY THEODORE A. McGRAW, M.D., PROFESSOR OF SURGERY IN THE DETROIT MEDICAL COLLEGE Reprinted from The Medical Record, January 17, 1880. NEW YORK: TROW'S PRINTING & BOOKBINDING CO., 201-213 East Twelfth Street. 1880. FRACTURE OF THE HUMERAL EPIPHY- SIS IN OLD DISLOCATIONS OF THE ELBOW. The few cases of unreduced dislocation which I have seen have resulted in great and permanent disability. The inability which almost invariably accompa- nies this injury-to flex the forearm within an angle of 120°-is in itself a great inconvenience. Patients with backward luxation of the elbow-joint can neither feed nor dress themselves, nor comb their own hair, nor even write, except in a most constrained posture. I cannot understand, therefore, the timidity with which Hamilton, in his famous work, approaches this subject, for while he quotes some cases of old dislocations in which he attempted, with varying suc- cess, the replacement of the bones, he records many others in which the disability was very serious, and in which he advised non-interference. It has seemed to me that so grave a disability should warrant almost any procedure which would offer hope of improvement, and it was with that feeling that I proceeded to operate in the case I am about to relate : A little girl of nine years fell and dislocated her right elbow. The irregular practitioner who was called upon to attend her failed to recognize the trouble, and treated the case as one of fracture with the arm in extension. 4 The accident occurred on October 2, 1877. Nine weeks afterward, Drs. Taylor, of Mt. Clemens, and Brownell, of Utica, saw the child, recognized the nature of the injury, and made a vain attempt at re- duction. Six weeks later, and fifteen weeks after the reception of the injury, the child was brought to me for treatment. On examination I found the arm nearly extended. There was limited motion at the elbow, but flexion caused pain and had to be dis- continued when it had reached an angle of 120°. On the 26th of January, assisted by Drs. Brownell, Gowan, Reynolds, and others, and in the presence of my medical class, I had the child anaesthetized and attempted the reduction of the dislocation. I first broke up the adhesions and tried the ordi- nary methods of reduction by manipulation. These failing, the pulleys were applied and extension made to the utmost justifiable extent in every position of the arm. I then divided the tendon of the triceps subcutaneously and applied the extending force until motion in every direction seemed absolutely unrestricted, and yet, though every obstacle had ap- parently been ruptured, the luxation could not be reduced. During the manipulation something sud- denly gave way and the deformity disappeared, and I thought for the moment that I had achieved suc- cess ; careful examination showed, however, that the old abnormal relations of the olecranon and the con- dyles still persisted, and further investigation re- vealed a fracture of the humeral epiphysis and a dis- placement of the epiphysis forward upon the shaft in such a way as to permit of easy flexion of the elbow and an apparent disappearance of deformity. Comparison of the two arms showed that the de- formity had only changed in character and not dis- 5 appeared, for the humerus of the injured side seemed now abnormally short in comparison with that of the other. I availed myself of the new con- ditions to secure better motion to the elbow-joint, and to so apply lateral angular splints as to permit the epiphysis to remain in its new position on the shaft. No inflammation or bad symptoms of any kind in- terfered with the healing process. At the beginning of the second week in February, 1878, the patient left the hospital convalescent. Last month, nearly two years after the operation, I had occasion to ex- amine the arm again, and found it in a most gratify- ing condition. The humerus was a little shorter than that of the opposite side. Flexion was nearly perfect, but extension could be made only to an angle of about 145°. As the free flexion permitted almost every use to which the hand could be put, and as the limited ex- tension prevented only such uses as would require the arm absolutely straight, it can be readily seen that so far as usefulness was concerned, the patient had been vastly benefited by the operation. As regards beauty, the present deformity would not attract the notice of any casual observer, while the awkward position entailed by an elbow dislocation forces itself on the observation of all. This case confirmed the truth of Erichsen's asser- tion that muscular contraction has nothing to do with the difficulty of reducing an old dislocation of the elbow. Division of the triceps, although it made possible the utmost freedom of flexion, did not facilitate at all the reduction of the luxation. This experience has made me doubt whether frac- 6 ture of the olecranon after Crosby's method, actually permits reduction. Fracture of the olecranon would undoubtedly make possible the same free flexion as tricipital tenotomy. It would cause the disappear- ance of the principal deformity, viz.: the undue pro- jection of the olecranon; but how it could in any way relieve any obstacles to reduction which tenoto- my of the triceps had failed to overcome, I cannot understand. Now, when we consider that the only positive test of the reduction or non-reduction of a posterior dis- location of the elbow consists in a careful comparison of the relations of the olecranon process to the con- dyles, it becomes evident that fracture of the olecra- non destroys the only test by which we can establish the true position of the bones in relation to each other. As fracture of the olecranon has given to such pa- tients more useful extremities, as it has enabled them to flex the forearm upon the arm, it has, of right, a claim to be considered a proper procedure. It may not, however, be regarded as a mode of re- ducing the dislocation, and of bringing the joint sur- faces into their old normal relations until exact post- mortem observations shall have shown such to have been actually the case. It is unfortunate that we do not, as yet, understand the actual pathology of an ancient elbow dislocation. It is evident to me that muscular contraction plays little or no part in opposing the reduction. It is in- conceivable that the mere interlocking of the bones should make so strong an obstacle. I can believe only that the ligamentous structures which are rup- tured at the time of injury become glued so firmly to the bones as to prevent their disentanglement. 7 When we consider the extreme loss of function caused by such a condition, it does not seem to me good surgery to dismiss such cases unrelieved. Our surgical resources for the relief of a chronic dislocation of the elbow are first, attempts at reduc- tion by manipulation and extension. These rarely succeed after the lapse of three or four weeks. Sec- ond, fracture of the olecranon. This procedure re- lieves the deformity, and by permitting free flexion adds immensely to the usefulness of the extremity. T have already stated the reasons for doubting whether it ever facilitates the actual reduction of the luxation. I feel especially justified in adopting this view when on reading Hamilton's record of cases, I find two of said cases in which he expressly states that, though certain of having reduced the ulna by fracture of the olecranon process, he had been unable to bring the radius into place. It may be a fair question to ask. how he could be certain that the ulna was in place after its relations with the condyles had been de- stroyed by fracture ? * The third method of treating an ancient disloca- tion of the ulna is that which accident demonstrated to be of service in the case I have just related. This could occur, of course, only in young persons, before the union of the epiphysis with the shaft. It oc- curred in my case as I was flexing, and at the same time pulling with considerable force on the forearm. Had the tricipital tendon not been previously divided, it is probable that the olecranon process would have broken instead, and that I should to-day have labored under the delusion that I had thus actually reduced the luxation. Extreme flexion of the forearm, in children suffer- ing from an ancient dislocation of the elbow, will be 8 liable to produce either a fracture of the olecranon or one of the humeral epiphysis. Either occurrence would vastly improve the condition of the joint. Sub- cutaneous incision of the ligamentous structures around the joint has not been followed, so far as I know, by any benefit. The lack of positive knowl- edge as regards the nature of the obstacles to re- duction make the procedure too blind to be of service. There still remains two possible means of improv- ing an old dislocation of the elbow. Excision of the joint has all the dangers and all the possibilities of that operation when undertaken for other maladies. I do not care, in this connection, to dwell upon it. The other remaining operation is one that suggests itself to me as feasible and as offering hopes of bet- ter results than nature could ever possibly accom- plish in a neglected dislocation. I hold in reserve as a procedure, which I shall not hesitate to resort to if I ever get the opportunity in a suitable case, the incision of the joints under the antiseptic spray ; the division of all ligamentous and muscular obstacles which prevent reduction;, the replacement of the joint surfaces, and subsequent strict attention to all the details of the antiseptic treatment. The elbow should, of course, in such cases be put in rectangular splints. Healing, if it occurred without suppuration, might reasonably be expected to result in a good joint, with tolerably free motion. If suppuration should take place, the anchylosed arm would be in- finitely more useful in a flexed position than when nearly extended.