ABSTRACT
Osteochondritis dissecans (OCD) is a condition affecting the subchondral bone of joints
with secondary effects on articular cartilage that results in pain, effusions, loose-body
formation, and mechanical symptoms. Left untreated, OCD can lead to the development
of degenerative arthritis secondary to joint incongruity and abnormal wear patterns.
This article discusses the etiology of knee OCD lesions, clinical presentation, proper
evaluation, and treatment options. Treatment of OCD may include nonoperative measures
or operative procedures ranging from drilling or fixation of fragments to complex
reconstruction procedures such as autologous chondrocyte implantation, osteochondral
autograft, and fresh osteochondral allograft. Physicians must consider many factors,
including the patient's age and skeletal maturity, as well as size, location, and
stability of OCD lesions to determine the proper course of treatment.