Adolescent with knee pain.

Volume 86, Number 6 www.aafp.org/afp American Family Physician 569 A 14-year-old girl presented with several weeks of intermittent right knee pain. The pain worsened after activity and improved with rest. She had not tried any over-the-counter analgesics. She played volleyball, but not around the time the pain began. Physical examination revealed a normalappearing right knee. There was no varus or valgus deformity, and her gait was normal. There was no effusion or erythema. She had tenderness over the patellar tendon and the tibial tubercle. Range of motion was normal and similar to the left side. The ligaments and menisci were intact. Radiography of the knee was performed (see accompanying figure).