1, pp. Nine osteochondral lesions of the talar dome were treated arthroscopically. “Osteo” means bone and “chondral” refers to cartilage. A talar dome lesion is an injury to the cartilage and underlying bone of the talus within the ankle joint. Yvars MF. Materials and method: This retrospective IRB-approved and HIPPA-compliant study included children with OLT, who underwent an ankle MRI examination between March … This condition is also known as osteochondritis dissecans (OCD) of the talus or a talar osteochondral lesion (OCL). Lesions in the medial third of the talar dome were significantly larger in surface area involvement and deeper than those at the lateral talar dome. Osteochondral fractures of the dome of the talus. It is relatively prevalent and are an important cause of ankle morbidity. (B) Lesion debrided to stable margins. A medial talar dome injury is seen on a mortise x-ray view. Purpose: 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. Crossref, Medline, Google Scholar; 12. Art. Furthermore, the ankle joints of five volunteers without osteochondral lesions of the medial talar dome and one volunteer with an osteochondral lesion of the medial talar dome were imaged. They may also be called osteochondritis dessicans or osteochondral fractures. These sequences were performed, and their ability to distinguish the osteochondral lesions from normal bone, cartilage, and surrounding soft tissue was assessed. Osteochondral lesions (osteochondritis dissecans) of the talus are common articular lesions that are usually traumatic in origin. It is also called an osteochondral defect (OCD) or osteochondral lesion of the talus (OLT). To diagnose this injury, the surgeon will question the patient about recent or previous injury and will examine the foot and ankle, moving the ankle joint to help determine if there is pain, clicking or limited motion within that joint. Talar Dome. Diagnosis. 20, No. (A) Unstable medial talar dome osteochondral lesion of the talus. The lesions were treated with simple ablation of the loose body. If the cartilage doesn’t heal properly following the injury, it softens and begins to break off. Author information: (1)1 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Rm 2A061, 2/F, New Extension Block, Prince of Wales Hospital, 30-32 Ngan Shing St, Shatin, New Territories, Hong Kong, SAR. A talar dome lesion is an injury to the cartilage and underlying bone of the talus within the ankle joint. RSNA, 2009 Supplemental material: ... Radiology: Volume 252: ... dral lesion of the medial talar dome were imaged. focal injuries to the talar dome with variable involvement of the subchondral bone and cartilage resulting in osteochondral lesion of the talus (OLT) may be caused by traumatic event or result of repetitive microtrauma; Epidemiology . Treatment of Osteochondral Lesions of the Medial Talar Dome with Osteochondral Autograft Transplantation Operative Techniques in Orthopaedics, Vol. Osteochondral lesions may also involve the talar dome, most frequently the medial aspect. 17 Osteochondral Lesions of the Talus MARK E. EASLEY, STEVEN D. SIDES, AND ALISON P. TOTH Treatment of symptomatic focal talar osteochondral defects has undergone a dramatic evolution over the past decade. [1] 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. We studied the value of MR imaging in determining the stability of the osteochondral fragments. of talar osteochondral lesions. Retrograde drilling of osteochondral lesions of the medial talar dome. MRI images show a stage IV medial talar dome osteochondral lesion with a minimally displaced osseous fragment corresponding to the plain films. 1977 Sep; 124 (3):667–673. Two patients (a 16-year-old boy) had two recent osteochondral fractures, anterior and superior lateral, with a free fragment detached in the joint. METHODS: Thirty-three patients (mean age, 35.1 years; body mass index, 26.8) with osteochondral lesions of the medial talar dome were retrospectively evaluated after open AMIC repair at a mean follow-up of 4.7 years (range, 2.3-8.0 years). It is often associated with a traumatic injury such as a severe ankle sprain. 3 Autogenous bone grafting for the treatment of talar dome lesions Particulated juvenile cartilage allograft transplantation. Ankle Traction During MRI of Talar Dome Osteochondral Lesions. An osteochondral lesion to the talar dome is an injury that causes damage to the cartilage that sits on top of the talus. Smith GR, Winquist RA, Allan NK, Northrop CH. Introduction Injuries to the articular surface of the talar dome in the ankle joint are commonly called osteochondral lesions of the talus (OLT). Talar dome lesions are usually caused by … A partial fluid cleft at its posterior margin and a mild subchondral oedema suggests an unstable lesion. Two patients (a 16-year-old boy) had two recent osteochondral fractures, a… Treatment of Osteochondral Lesions of the Talar Dome James W. Stone MD Key Points Although osteochondral lesions can occur over any portion of the talar dome or the tibia, the talar lesions typically occur over the anterolateral or the posteromedial talar dome. OCDs of the talus represent damage to the articular surface of the talar dome in the ankle joint. A talar dome lesion can be difficult to diagnose because the precise site of the pain can be hard to pinpoint. There is an osteochondral fracture of the posterolateral part of the talar dome; the fractured fragment is detached and flipped upside down, so that the articular cartilage is visible at its inferior surface. Retrograde drilling of osteochondral lesions of the medial talar dome. (C) Particulated juvenile cartilage allograft pieces were placed into the lesion bed. Subtle transchondral fractures of the talar dome: a radiological perspective. “Osteo” means bone and “chondral” refers to cartilage. 1 ) and anterolateral (46%) talar dome ( 1 ). incidence 69% of ankle fractures; 70% of ankle sprains; 10% are bilateral Foot Ankle Int 1999; 20:474-480. Nine osteochondral lesions of the talar dome were treated arthroscopically. Management of symptomatic osteochondral lesions of the talus (OLT) is challenging given the poor healing potential of articular cartilage. 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