Michael JW, Wurth A, Eysel P et-al. This 26 year old man has right knee pain. 4. 15. ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers. It is known from long-term followup studies, such as those conducted by Linden, 7 that osteochondritis dissecans diagnosed in adulthood is likely to lead to the development of early onset osteoarthritis. 2 article feature images from this case 13 public playlist includes this case An osteochondral defect refers to a focal area of damage that involves both the cartilage and a piece of underlying bone. The abnormality is subtle and is best appreciated on the magnified lateral image. In the talus, 96% of lateral lesions and 62% of ⦠MRI is the modality of choice, with high sensitivity (92%) and specificity (90%) 4 in the detection of separation of the osteochondral fragment. Glossary of terms for musculoskeletal radiology. They are a common source of knee problems in children and young adults. Cause of a âlocking kneeâ Osteochondritis dissecans. Onset is between childhood and middle age, with the majority of patients being between 10 and 40 years of age, with approximately a 2:1 male to female ratio 3. Sailors ME. For the same photo without the arrows, click here. 1 The knee joint is perhaps one of the busiest joints in the body as it bears most of the body weight when standing. 21 (2): 119-26. 8. (1997) The Journal of Bone and Joint Surgery (american Volume). 24 (4): 286-99. Osteochondral Lesions of the Knee: Differentiating the Most Common Entities at MRI. Osteochondritis dissecans (OCD or OD) is a joint disorder primarily of the subchondral bone in which cracks form in the articular cartilage and the underlying subchondral bone. To test for osteochondral defects, physicians may extract a sample of fluid from your swollen knee with a small needle. 11. A chondral defect is a defect in the articular (hyaline) cartilage at the end of the bones. (2020) Skeletal Radiology. His radiographs show an osteochondral defect involving the lateral aspect of his medial femoral condyle (the most common location to see this condition). Symptoms are variable and range from asymptomatic to significant pain and locking (suggesting loose body formation). CT has the advantage of sectional imaging through the joint and multiplanar reformats. (2006) The American journal of sports medicine. 1994;29 (4): 302-306. Such lesions are a tear or fracture in the cartilage covering one of the bones in a joint. Recognition and Treatment of Osteochondritis Dissecans of the Femoral Condyles. His radiographs show an osteochondral defect involving the lateral aspect of his medial femoral condyle (the most common location to see this condition). Lippincott Williams & Wilkins. See osteochondritis dissecans article for a general discussion. Management of osteochondritis dissecans of the knee: current concepts review. The defect may be found on the femoral condyle, tibial plateau, patella, talus, humerus or on other articular surfaces. When surgery is performed, the results in most cases are only "fair". Osteochondral lesions are acquired, potentially reversible injuries of the subchondral bone with or without associated articular cartilage involvement. The abnormality is subtle and is best appreciated on the magnified lateral image. Dähnert W. Radiology review manual. 38 (5): 1478-1495. A Consensus Statement. A significant number of osteochondral injuries involve the midlateral weight-bearing portion of the lateral femoral condyle and are more posterior than would be expected after transient dislocation of the patella. Maeurer J. 1A, 1B, and 1C), whereas in five (50%) of the 10 patients, the chondral defects were isolated to the midlateral weight-bearing portion of the lateral femoral condyle (Figs. Autologous chondrocyte implantation segmental-sandwich technique. (2000) Foot & ankle international. Osteochondral Treatments for Defects of the Knee + Plan refers to Boston Medical Center Health Plan, Inc. and its affiliates and subsidiaries offering health coverage plans to enrolled members. De smet AA, Fisher DR, Graf BK et-al. A chondral defect refers to a focal area of damage to the articular cartilage (the cartilage that lines the end of the bones). Authors ... other techniques reconstruct the defect with additional osteochondral grafts or cell-based procedures such as chondrocyte transplantation. Osteochondritis dissecans (OCD) is the end result of the aseptic separation of an osteochondral fragment with the gradual fragmentation of the articular surface and results in an osteochondral defect. Check for errors and try again. The Athlete's Shoulder. The large osteochondral defect was eventually managed in a staged manner with bone grafting and osteochondral autograft transfer. Other postulated causes include 4: Many joints can be affected, but typical locations include: See osteochondral injury staging and osteochondritis dissecans surgical staging. Osteochondral fracture of the lateral femoral condyle is a rare injury of the knee joint, which mostly occurs in adolescence 1.In adolescence, the cartilageâbone interface is the weakest transitional area in the knee joint, and there is no obvious boundary between calcified and uncalcified cartilage 2.The biomechanical strength of immature osteochondral junction was lower ⦠19 (5): 477-84. (2003) Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association. The convex surface of the bones involves both the cartilage can be treated with technique.! Epiphyseal disturbance and its consequences for the aetiogenesis of local malacias -- particularly the osteochondrosis dissecans a common of! 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