Osteochondritis dissecans of the talus is a subset of osteochondral lesions of the talus that also includes osteochondral fractures, avascular necrosis, and degenerative arthritis. 41(A):988-1020. Osteochondritis dissecans has been reported to affect the ankle as the third most common joint, after the knee and the elbow. We studied the value of MR imaging in determining the stability of the osteochondral fragments. This term covers a wide spectrum of pathologies including (sub)chondral contusion, osteochondritis dissecans, osteochondral fracture and osteoarthritis resulting from longstanding disease. Most cases of OCD usually follow a twisting injury to the ankle and are actually fractures of the joint surface. J Bone Joint Surg [Am]. Osteochondral lesions of the talus can be associated with injury to the ankle. Osteochondral lesions (osteochondritis dissecans) of the talus are common articular lesions that are usually traumatic in origin. J Pediatr Orthop 2003; 23:617. Brunton LM, Anderson MW, Pannunzio ME, et al. Most classification systems are based on lesion descriptions by Berndt and Harty ( 2 ): It can occur in all age groups. 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. Berndt AL, Harty M. Transchondral fracture (osteochondritis dissecans) of the talus. Role of magnetic resonance imaging and clinical criteria in predicting successful nonoperative treatment of osteochondritis dissecans in children. Osteochondritis dissecans is an aseptic necrosis of subchondral bone and the overlying cartilage. Osteochondral lesions (OCL) of the talus are defined as any damage involving both articular cartilage and subchondral bone of the talar dome. 24, No. 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. 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. 7 Simultaneous surgery for chronic lateral ankle instability accompanied by only subchondral bone lesion of talus When it becomes necrotic, the overlying cartilage is devitalized, and frequently the entire fragment separates out and forms an intra-articular loose body. Magnetic resonance imaging of the elbow: update on current techniques and indications. The most common sites are the posteromedial (53%) ( Fig. J Hand Surg Am 2006; 31:1001. It can occur in all age groups. The talus is the 3rd most common site (after the knee and elbow) of osteochondral lesions. Osteochondritis dissecans of the talus | Radiology Case ... ... . Osteochondritis dissecans (OCD) is a problem that causes pain and stiffness of the ankle joint. MRI-guided percutaneous retrograde drilling of osteochondritis dissecans of the talus: a feasibility study 17 April 2014 | European Radiology, Vol. Osteochondral injury staging system for MRI attempts to grade the stability and severity of osteochondral injury and is used to plan management. 1959. Usually a small area of bone adjacent to the articulating surface is affected. Flynn JM, Kocher MS, Ganley TJ. 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. Letts M, Davidson D, Ahmer A. Osteochondritis dissecans of the talus in children. This article discusses the anatomy, path … 1 ) and anterolateral (46%) talar dome ( 1 ). Clinical management of these lesions is based on whether or not the fragments are attached. Pill SG, Ganley TJ, Milam RA, Lou JE, Meyer JS, Flynn JM. Osteochondritis dissecans of the knee.