What is osteochondritis dissecans (OCD)? The articular cartilage surface may be intact or may be breached allowing communication of the joint fluid with the bone. The diagnosis Osteochondritis Dissecans is usually made on X-rays. 231 plays. The osteochondral fragment is detached, yet not displaced from the medial femoral condyle, in keeping with grade III osteochondritis dissecans. Research in Osteochondritis of the Knee OCD Study Group of America. Arthroscopy 2002 Apr;18(4):378-86. The knee is most commonly affected, but the elbow and ankle may also be involved. 2/24/2020. Bilateral Osteochondritis Dissecans of the Knee CAPT. AJR Am J Roentgenol. A lesion of the cartilage and bone due to necrosis and loss of continuity of the underlying bone. Kijowski R, Blankenbaker DG, Shinki K, Fine JP, Graf BK, De Smet AA. Salvage of Large OCD Lesions: Articular Cartilage Paste Grafting Kevin R. Stone, MD CPMC Grand Rounds 2/13/2009 Stone Research Foundation 2. A comparison with conventional radiology and arthroscopy]. It has no known cause, but repetitive stress on the joint, low vitamin D and a genetic predisposition are often linked to this condition. De Smet AA, Fisher DR, Graf BK, Lange RH. Osteochondritis Dissecans (OCD) of the knee is an acquired, reversible, idiopathic condition of the subchondral bone. Interventions: Chondral fraying was observed along the margins of the OCD. Developed by renowned radiologists in each specialty, STATdx provides comprehensive decision support you can rely on - Osteochondral Injury, Knee The OCD lesion can remain in contact with the adjacent bone, maybe partially separated or completely separated. The condition can also occur in other joints, including the shoulder and hip. 1995 Jul. Etiology relates to a subchondral fatigue fracture usually as a result of shearing, rotatory or tangentially aligned impaction forces. With JOCD, there is a loosening of a piece of bone and the cartilage that covers it. Rofo Fortschr Geb Rontgenstr Neuen Bildgeb Verfahr . [2] That process can lead to pain, loose body formation and joint effusion.[1]  We define unstable OCD lesions as those with fragments that can be displaced by intraoperative probing. Osteochondritis dissecans (OCD) is a localized process that affects the subchondral bone and can progress to the overlying articular cartilage. Osteochondritis dissecans of the knee: value of MR imaging in determining lesion stability and the presence of articular cartilage defects. Knee Surg Sports Traumatol Arthrosc. Osteochondritis Dissecans. Osteochondritis dissecans (OCD) refers to the acquired fragmentation and possible separation of the articular cartilage and a segment of subchondral bone from the remaining articular surface. Kevin R. Stone, Biological Knee Reconstruction Annual Joint Preserving Meeting, Johns Hopkins 2004 ; Osteochondritis dissecans 1. Osteochondritis dissecans is a bone and cartilage condition that most often occurs in the knee. Juvenile Osteochondritis Dissecans (JOCD) is a disorder which occurs in young people whose growth plates haven’t closed yet. Also, imaging would demonstrate the separation of articular cartilage with subchondral bone [ 1 ]. ObjectiveOsteochondral surgical procedures have been described for the treatment of unfixable osteochondritis dissecans (OCD), but only few of them have … 21. 1 The condition is characterized by sterile osteonecrosis of the subchondral bone, which can lead to a spectrum of clinical symptoms, ranging from asymptomatic stable lesions to loose fragments causing locking and swelling. This condition occurs most often in adolescent males under the age of 25. For the same photo without the arrows, click here. The question for MRI is whether it is stable or unstable. ... Advanced Radiology Services – Grand Rapids Phone: (616) 363 – 7272. (PMID: 11951196) [2] Hefti F, Beguiristain J, Krauspe R, Moller-Madsen … 163(1):38-44. Red arrows point to osteochondral defect and bone edema on T1 and stir When osteochondritis dissecans occurs elsewhere in the skeleton, it affects the bone on the convexity of the affected joint (e.g., talar dome, capitellum, head of first metatarsal) almost exclusively, with rare exceptions, such as the tibial plafond and the glenoid. 1990 Sep; 155 (3):549–553. Etiology Osteochondritis dissecans. Hayes CW, Conway WF. The cause of this lesion remains elusive. ... Avoid activities that stress your joint, such as jumping and running if your knee is affected. Arthroscopic versus conservative treatment of osteochondritis dissecans of the knee: value of magnetic resonance imaging in therapy planning and follow-up. Osteochondritis Dissecans and Avascular Necrosis Matthew T. Burrus David R. Diduch DEFINITION Osteochondritis dissecans (OCD), avascular necrosis (AVN), spontaneous osteonecrosis of the knee, and chondral and osteochondral lesions all occur at or beneath the articular surface of a weight-bearing joint and are easily confused (FIG 1). Treatment of osteochondritis dissecans is intended to restore the normal functioning of the affected joint and relieve pain, as well as reduce the risk of osteoarthritis. The etiology is uncertain, although trauma and ischemia have been implicated. Knee Surg Sports Traumatol Arthrosc. 0.0 (0) See More See Less. [1] This may result in separation and instability of a segment of cartilage and free movement of these osteochondral fragments within the joint space. 5 Osteochondritis Dissecans of the knee: Value of MR Imaging in Determining Lesion Stability and the Presence of Articular Cartilage Defects. For determining the best treatment for osteochondritis dissecans (OCD) of the humeral capitellum, it is important to clarify whether the lesions are stable or unstable. Osteochondritis dissecans development after bone contusion of the knee in the skeletally immature: a case series. OSTEOCHONDRITIS DISSECANS OF THE KNEE A preliminary report H. E. GREGERSEN and 0. Osteochondritis dissecans is an idiopathic disease which affects the subchondral bone and its overlying articular cartilage due to loss of blood flow. AJR; 1990; 155:549-553. Radiology 2008; 248:571–578 [Google Scholar] R. H. Hermanson , M.C., A.U.S. e pain, which had worsened following a collision with another player during a basketball game, resulting in episodes of locking. This article… Osteochondritis dissecans (os-tee-o-kon-DRY-tis DIS-uh-kanz) is a joint condition in which bone underneath the cartilage of a joint dies due to lack of blood flow. Osteochondritis dissecans usually affects the knee at the end of the thighbone (femur), ankle and elbow. OCD usually causes pain and swelling of the affected joint which catches and locks during movement. An osteochondritis dissecans lesion in the knee is a condition that is caused by a reduction of blood flow to the end of a bone within the knee joint. Diagnoses: Magnetic resonance imaging revealed a lateral trochlear OCD extending into the anterior lateral femoral condyle. MRI is commonly used to assess the stability of OCD lesions of the knee . [The staging of osteochondritis dissecans in the knee and ankle joints with MR tomography. Osteochondritis dissecans (OCD) of the knee is a well-recognized condition that affects children and adolescents. Juvenile versus adult osteochondritis dissecans of the knee: appropriate MR imaging criteria for instability. OCD lesions occur when a segment of subchondral bone… The case on the left is unstable for two reasons: - small cysts at the base of the lesion (red arrow) - even more … Osteochondritis dissecans is a disorder in which a fragment of cartilage and subchondral bone separates from an articular surface. Blue arrow points to crescentric lucency in the convex surface of the medial condyle of the knee. Evaluation of articular cartilage: radiographic and cross-sectional imaging techniques. The condition is bilateral in 20 to 30% of patients. Personal blog / website. Osteochondritis Dissecans. Osteochronditis dissecans (aka “OCD”) is a condition in which the bone that supports the cartilage inside a joint undergoes softening. 6 De Smet A. Radiology of Osteochondritis Dissecans. Knee & Sports ⎪Osteochondritis Dissecans Orthobullets Team Knee & Sports - Osteochondritis Dissecans; Listen Now 23:49 min. Normal hard bone is covered with a softer form of bone called cartilage at the joint surface. 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