1. Facet screw systems: performance criteria for safety and performance based pathway : guidance for industry and Food and Drug Administration staff Publication: [Silver Spring, MD] : Center for Devices and Radiological Health, April 13, 2022 Subject(s): Bone Screws -- standardsDevice ApprovalEquipment SafetyUnited StatesUnited States. Department of Health and Human ServicesUnited States. Food and Drug Administration