cited from JBJS...
A High-Energy Ski Injury
A twenty-six-year-old man sustained head trauma in a skiing accident. He was admitted to a hospital near the ski area with an acute subdural hemorrhage. Tenderness and swelling of the left knee were noted, and plain radiographs of the left knee revealed a fracture of the femur. The patient was transferred to our hospital ten days after the injury.
On physical examination, there was tenderness over the proximal and posterior part of the medial condyle of the femur. The skin was slightly warmer than normal. The range of flexion of the left knee was from 10° to 130°. There was no effusion, erythema, pathological laxity, or tenderness at the joint line.
Plain radiographs of the left knee (Fig. 1) were made, and a computed tomography scan (Fig. 2) and a magnetic resonance imaging scan (Fig. 3) were acquired.
