The first is injury to the cartilage surface with an actual loss of part of the chondral surface and underlying subchondral bone. How is it caused? There are three types of common lesion formation. The location and containment of the osteochondral lesion of the talus also may be implicated in the prognosis following the use of bone-marrow-stimulation techniques. The aim of this study was to summarize all eligible studies to compare the effectiveness of treatment strategies for osteochondral defects (OCD) of the talus. The proportion of the patient population treated succes … Symptoms. Osteochondral lesions of the talus are injuries to the cartilage in the bone inside the ankle joint. In the ankle, osteochondral lesions usually occur on the talus, which is the bone that connects the leg to the foot. Osteochondral lesions of the talus (OLT) are those that affect the chondral and subchondral areas of the talus. Historically, a variety of terms have been used to refer to this clinical entity including osteochondritis dissecans, osteochondral fracture, and osteochondral defect. INTRODUCTION. The most common surgical treatment is arthroscopy of the ankle. The treatment for an osteochondral defect of the talus is extremely varied and depends on the size of the defect and the extent of bone and cartilage loss. This type of injury can be due to a severe ankle sprain that causes bone and cartilage to become loose, resulting in ongoing ankle pain. Electronic databases from January 1966 to December 2006 were systematically screened. The most common sites are the posteromedial (53%) ( Fig. Most classification systems are based on lesion descriptions by Berndt and Harty ( 2 ): Osteochondral lesions (OCL) of the talus are defined as any damage involving both articular cartilage and subchondral bone of the talar dome. Multiple tiny incisions are made around the ankle and … Osteochondral injury staging system for MRI attempts to grade the stability and severity of osteochondral injury and is used to plan management. Choi et al. This term covers a wide spectrum of pathologies including (sub)chondral contusion, osteochondritis dissecans, osteochondral fracture and osteoarthritis resulting from longstanding disease. 1 ) and anterolateral (46%) talar dome ( 1 ). Osteochondral injury of the ankle (talus) Osteochondral injury (or osteochondral defect) of the ankle is an injury to the bone or smooth cartilage covering the joint surface in the ankle. Osteochondral defects (OCDs) are very localised areas of joint damage which can occur in a number of different joints , not just the ankle. The “classical” defect involves a disruption of both the bone (osteo) and cartilage (chondral) .They usually occur on the Talus if effecting the ankle joint and are a region where the cartilage and underlying bone have been disrupted. This is often referred to as a chip inside your ankle joint. An osteochondral lesion is an injury or small fracture of the cartilage surface of the talus. Osteochondral lesion of the talus (OLT) is a broad term used to describe an injury or abnormality of the talar articular cartilage and adjacent bone. [] This is a broad terminology that encompasses a variety of disorders including osteochondritis dissecans, osteochondral fractures, and osteochondral defects. Osteochondral autograft transfer involves harvesting single or multiple cylindrical cartilage and subchondral bone grafts from the non-weight-bearing part of the ipsilateral knee and transplanting them into the talar defect after preparation. 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