Femoral stress fracture.

The following case report describes the history of a high school football player who complained of right anterior thigh pain, which worsened during the season. The team orthopedic surgeon made an initial diagnosis of a right rectus femoris strain. The athlete was treated and improved quickly. One week later, his condition worsened and he reported signs and symptoms similar to those experienced initially. A follow-up examination by the orthopedic surgeon revealed a femoral stress fracture to the proximal one-third (medial side) of the right femur. We describe the athlete's clinical findings, diagnostic tests, and rehabilitation program. We also discuss the pathophysiology and treatment principles relevant to the management of a femoral shaft stress fracture. The athlete has recovered and has returned to full athletic activity with no complications.