A 20-year-old man presents following a motor vehicle collision in which the car he was driving was broadsided by another vehicle. His air bag deployed, and the patient is now complaining of right-sided chest wall pain and right knee pain.
His medical history is unremarkable. In a primary survey, the patient appears stable, with normal vital signs. Inspection of his right knee shows some deformity of the joint, with mild swelling and moderate tenderness. The patient is unable to perform flexion with his right knee. Good distal pulses are present, and sensation is intact.
Radiograph of the right knee is obtained. What is your impression?
