Osteochondritis Dessicans


  • —Small segment of bone begins to separate from its surrounding region due to a lack of blood supply.  As a result, the small piece of bone and the cartilage covering it begin to crack and loosen.
  • ——May be the result of subchondral bone bruising, so may not show up immediately on imaging
  • ——Most common joints affected are the knee, (75% = mostly MFC) elbow (6% = mostly capitellum) and ankle (5% = talar dome)


  • Pain
  • Swelling
    • May have a haemarthrosis
  • Reduced range of motion
  • Clicking / catching / locking
  • X-ray findings
    • Bony loose body with defect at donor site



  • Usually the treatment is surgery