7 Simultaneous surgery for chronic lateral ankle instability accompanied by only subchondral bone lesion of talus 41(A):988-1020. Osteochondritis dissecans is an aseptic necrosis of subchondral bone and the overlying cartilage. MRI-guided percutaneous retrograde drilling of osteochondritis dissecans of the talus: a feasibility study 17 April 2014 | European Radiology, Vol. Osteochondritis dissecans of the talus | Radiology Case ... ... . 1959. 1 ) and anterolateral (46%) talar dome ( 1 ). Osteochondral injury staging system for MRI attempts to grade the stability and severity of osteochondral injury and is used to plan management. Brunton LM, Anderson MW, Pannunzio ME, et al. J Hand Surg Am 2006; 31:1001. 1 A 26-year-old housewife presented with chronic ankle pain for 3 weeks duration with intermittent swelling after exertion, without any history of trauma. Osteochondritis dissecans (OCD) is a problem that causes pain and stiffness of the ankle joint. Usually a small area of bone adjacent to the articulating surface is affected. This retrospective IRB-approved and HIPPA-compliant study included children with OLT, who underwent an ankle MRI examination between March 1, 2011, and May 31, 2018. Osteochondral lesions (OCL) of the talus are defined as any damage involving both articular cartilage and subchondral bone of the talar dome. Most cases of OCD usually follow a twisting injury to the ankle and are actually fractures of the joint surface. Flynn JM, Kocher MS, Ganley TJ. J Bone Joint Surg [Am]. Osteochondritis dissecans of the knee. Role of magnetic resonance imaging and clinical criteria in predicting successful nonoperative treatment of osteochondritis dissecans in children. Clinical management of these lesions is based on whether or not the fragments are attached. Osteochondral lesions (osteochondritis dissecans) of the talus are common articular lesions that are usually traumatic in origin. Most classification systems are based on lesion descriptions by Berndt and Harty ( 2 ): Osteochondritis dissecans of the talus is a subset of osteochondral lesions of the talus that also includes osteochondral fractures, avascular necrosis, and degenerative arthritis. This article discusses the anatomy, path … Osteochondritis dissecans (OCD) of the talus is a subchondral bone pathology that presents as an osteochondral lesion of the talar dome with consequent articular cartilage abnormalities. Magnetic resonance imaging of the elbow: update on current techniques and indications. The purpose of our study was to investigate the performance of MRI findings to predict instability of osteochondral lesion of the talus (OLT) in children and the association between skeletal maturity and lesion stability. The most common sites are the posteromedial (53%) ( Fig. The talus is the 3rd most common site (after the knee and elbow) of osteochondral lesions. Letts M, Davidson D, Ahmer A. Osteochondritis dissecans of the talus in children. We studied the value of MR imaging in determining the stability of the osteochondral fragments. It can occur in all age groups. 24, No. When it becomes necrotic, the overlying cartilage is devitalized, and frequently the entire fragment separates out and forms an intra-articular loose body. It can occur in all age groups. This term covers a wide spectrum of pathologies including (sub)chondral contusion, osteochondritis dissecans, osteochondral fracture and osteoarthritis resulting from longstanding disease. Osteochondritis dissecans has been reported to affect the ankle as the third most common joint, after the knee and the elbow. Osteochondral lesions of the talus can be associated with injury to the ankle. J Pediatr Orthop 2003; 23:617. Pill SG, Ganley TJ, Milam RA, Lou JE, Meyer JS, Flynn JM. Berndt AL, Harty M. Transchondral fracture (osteochondritis dissecans) of the talus. 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