Bilateral knee and bilateral elbow osteochondritis dissecans.

A 12 1/2-year-old white girl presented with a 3-year history of bilateral knee and bilateral elbow pain. Radiographs showed osteochondritis dissecans (OCD) lesions of both patellas and bilateral intra-articular bodies within the elbows--consistent with previous OCD lesions. After unsuccessful conservative management, an arthroscopy was performed on the right knee; the lesion was removed, and a chondroplasty was performed on the patella. There were no operative complications, and the patient did well postoperatively. At 12-week follow-up, a 2+ effusion was found in the right knee. Locking and pain in the left elbow were treated with arthroscopy/arthrotomy, and the 3 loose osteochondral bodies were removed. The patient regained full, painless range of motion of the left elbow. This is the first report of OCD lesions located on both patellas and elbows in an adolescent.