Schenck RC Jr, Goodnight JM. There is no verified classification of OCD of the elbow for CT images; therefore we used the classification of Clanton and DeLee 16 for osteochondritis dissecans of the knee. Roßbach BP, Paulus AC, Niethammer TR, et al. We define unstable OCD lesions as those with fragments that can be displaced by intraoperative probing. OCD usually causes pain and swelling of the affected joint which catches and locks during movement. To determine whether pains are osteochondritis dissecans, an MRI, CT scan or X-ray can be performed to show necrosis of subchondral bone and/or formation of loose fragments.In specific cases, if caught early enough, a harmless dye will be injected into the blood stream to show where calcium will accumulate. MRI classification of juvenile osteochondritis dissecans lesions Hefti F, Beguiristain J, Krauspe R, et al. Osteochondritis dissecans of the knee in children. In vivo visualization using MRI T2 mapping of induced osteochondrosis and osteochondritis dissecans lesions in goats undergoing controlled exercise; Novel Arthroscopic Classification of Osteochondritis Dissecans of the Knee – A Multicenter Reliability Study Presentation. A comparison of MRI and arthroscopic finding. Osteochondritis dissecans is generally diagnosed by conventional radiology. Osteochondritis dissecans (OCDs) are acquired disorders of bone in which there is fragmentation of the articular surface to varying degrees. J Bone Joint Surg Am 2012; 94:1036. Case contributed by Dr Vinay Shah. This softening is caused by an interruption in the blood flow to that portion of the bone. It is classified into juvenile and adult forms, depending on growth plate status. However, variations are found in the number of stages and specific lesion characteristics assessed. 94, No. Osteochondritis dissecans (OCD or OD) is a joint disorder in which cracks form in the articular cartilage and the underlying subchondral bone. 8, 103±112 (1998) Ó Springer-Verlag 1998 European Musculoskeletal radiology Radiology Review article Osteochondritis (osteochondrosis) dissecans: A review and new MRI classification K. Bohndorf Department of Diagnostic Radiology and Neuroradiology, Central Clinics Augsburg, Stenglinstrasse 2, D-86 356 Augsburg, Germany Received 27 January 1997; Revision … 11 MRI of Pediatric Patients: Part 2, Normal Variants and Abnormalities of the Knee Juvenile versus adult osteochondritis dissecans of the knee: appropriate MR imaging criteria for instability. MRI is commonly used to assess the stability of OCD lesions of the knee . Magnetic resonance imaging (MRI). The cause of this condition is unknown. 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. CAFFEY J, MADELL SH, ROYER C, MORALES P. Ossification of the distal femoral epiphysis. Osteochondritis dissecans (OCD) is an acquired defect in the articular cartilage and subchondral bone. These existing classification systems have some similar characteristics, such as stable lesion/intact articular cartilage and presence of a loose body. Osteochondritis dissecans was originally described in 1888 as a process of loose body formation associated with articular cartilage and subchondral bone fracture in the hip and knee. On MRI, the cartilage can be visualized most clearly, including an assessment of the lateral cartilage margin of the capitellum, which is important in determining the course of treatment. This bone and cartilage can then break loose, causing pain and possibly hindering joint motion. 94, No. Radiol. This is a well-known and validated classification system for OCD lesions. Osteochondritis dissecans: a multicenter study of the European Pediatric Orthopedic Society. The Clinical Utility and Diagnostic Performance of MRI for Identification and Classification of Knee Osteochondritis Dissecans The Journal of Bone and Joint Surgery-American Volume, Vol. Abstract. Multiple systems for classifying osteochondritis dissecans (OCD) of the knee have been reported. Purpose of review Juvenile osteochondritis dissecans (JOCD) knee lesions are common abnormalities in adolescents and children, and have higher rates of spontaneous healing with nonoperative management compared to adult osteochondritis dissecans (OCD) lesions. Given the benefits of the use of MRI as a noninvasive tool to diagnose, predict lesion progression, and assess clinical outcomes of treatment, there is a pressing need for high-level, systematic, sound, and thorough studies related to the clinical utility of MRI for assessing osteochondritis dissecans of the knee. Osteochondritis Dissecans (OCD) A contour change sharply demarcated that involves the chondro-osseous surface and appears to be chronic in nature may be characterized as an osteochondral defect; one subset of osteochondral defect that occurs in young patients is osteochondritis dissecans, which can be graded when there is history of trauma. Osteochondritis Dissecans Osteochronditis dissecans (aka “OCD”) is a condition in which the bone that supports the cartilage inside a joint undergoes softening. ... MRI classification of OCD according Dipaola et al (Gr.I-IV) Treatment. 1. 1 The first description of these lesions in the ankle was provided in 1922. 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