Osteochondritis Dissecans of the Knee Wheeless

Description: OCD is a defect in the subchondral region with partial or compete separation of the bone fragment; - most often seen on the postero-lateral aspect of the medial femoral condyle (about 80% of cases), and less often seen in posterior aspect of lateral condyle; - is usually unilateral (74%) - relatively common source of loss bodies in the knee or even an incongruous joint if the separated fragment is large; - twice as common in males; - classically occurs below the age of 18 (range: 6 to 53 years)