Grosse-Kempf Interlocking Femoral Nail. First generation interlocking nail. Note slightly flared proximal end. No notch. Rotation controlled by two flat edges of nail. Screws are finely threaded and have cylindrical head.
Courtesy of Steve Schelkun, MD; Kaiser Hospital;San Diego, CA
Manufacturer: Howmedica (now Stryker Orthopaedics)