Nine osteochondral lesions of the talar dome were treated arthroscopically. An osteochondral lesion to the talar dome is an injury that causes damage to the cartilage that sits on top of the talus. The most common sites are the posteromedial (53%) ( Fig. “Osteo” means bone and “chondral” refers to cartilage. Crossref, Medline, Google Scholar; 7 Kumai T, Takakura Y, Higashiyama I, Tamai S. Arthroscopic drilling for the treatment of osteochondral lesions of the talus. RSNA, 2009 Supplemental material: ... Radiology: Volume 252: ... dral lesion of the medial talar dome were imaged. These sequences were performed, and their ability to distinguish the osteo-chondral lesions from normal bone, carti- However, it can also occur from chronic overload due to malalignment or instability of the ankle 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). Art. Nine osteochondral lesions of the talar dome were treated arthroscopically. It is often associated with a traumatic injury such as a severe ankle sprain. Few studies have evaluated the incidence of talar dome lesions and injuries to the peroneal tendons occurring concomitantly. Retrograde drilling of osteochondral lesions of the medial talar dome. Two patients (a 16-year-old boy) had two recent osteochondral fractures, a… 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. It is relatively prevalent and are an important cause of ankle morbidity. It is also called an osteochondral defect (OCD) or osteochondral lesion of the talus (OLT). Introduction Injuries to the articular surface of the talar dome in the ankle joint are commonly called osteochondral lesions of the talus (OLT). The lesions were treated with simple ablation of the loose body. of talar osteochondral lesions. Other terms that refer to the same general process are osteochondral defects (OCD), osteochondritis dissecans Particulated juvenile cartilage allograft transplantation. [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. A talar dome lesion is an injury to the cartilage and underlying bone of the talus within the ankle joint. Management of symptomatic osteochondral lesions of the talus (OLT) is challenging given the poor healing potential of articular cartilage. Lee RKL(1), Griffith JF(1), Law EKC(1), Ng AWH(1), Yeung DKW(1). Yvars MF. Foot Ankle Int 1999; 20:474-480. “Osteo” means bone and “chondral” refers to cartilage. Osteochondral fractures of the dome of the talus. Diagnosis. Retrograde drilling of osteochondral lesions of the medial talar dome. Subtle transchondral fractures of the talar dome: a radiological perspective. 1977 Sep; 124 (3):667–673. A medial talar dome injury is seen on a mortise x-ray view. 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. Talar dome lesions are usually caused by … Many of these lesions are first diagnosed by plain film. The purpose of our research was to evaluate the incidence of osteochondral lesions of the talus (OLT) with peroneal tendon pathologic features according to the magnetic resonance imaging (MRI) findings. Smith GR, Winquist RA, Allan NK, Northrop CH. This condition is also known as osteochondritis dissecans (OCD) of the talus or a talar osteochondral lesion (OCL). Patients tend to present… Medial lesions tend to be deeper and cup shaped. Medline, Google Scholar Talar dome lesions are usually caused by an injury, such as an ankle sprain. 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. Clinical management of these lesions is based on whether or not the fragments are attached. J Bone Joint Surg Am 1999; 81:1229-1235. 1, pp. 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. “Osteo” means bone and “chondral” refers to cartilage. MRI images show a stage IV medial talar dome osteochondral lesion with a minimally displaced osseous fragment corresponding to the plain films. Talar dome chondral and osteochondral lesions are a common cause of ankle pain and subjective instability. There is also reactive bone marrow edema of the distal tibia and the talus. 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. (C) Particulated juvenile cartilage allograft pieces were placed into the lesion bed. Two patients (a 16-year-old boy) had two recent osteochondral fractures, anterior and superior lateral, with a free fragment detached in the joint. A talar dome lesion is an injury to the cartilage and underlying bone of the talus within the ankle joint. Crossref, Medline, Google Scholar; 12. Osteochondral lesions may also involve the talar dome, most frequently the medial aspect. incidence 69% of ankle fractures; 70% of ankle sprains; 10% are bilateral (A) Unstable medial talar dome osteochondral lesion of the talus. A similar pattern was subsequently described at the talar dome in 1922 by Kappis and colleagues.3, 4 The etiology of these lesions remains controversial today with numerous proposed biomechanical explanations and causes in the orthopaedic, pediatric, radiology… We studied the value of MR imaging in determining the stability of the osteochondral fragments. 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. Most OCD of the talar dome (8a) treated non-operatively improve or show no change on MRI at an average of 13.7 months, and marrow edema and subchondral cysts are not reliable indicators of progression. If the cartilage doesn’t heal properly following the injury, it softens and begins to break off. 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. They may also be called osteochondritis dessicans or osteochondral fractures. 20, No. (B) Lesion debrided to stable margins. 3 Autogenous bone grafting for the treatment of talar dome lesions 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. These sequences were performed, and their ability to distinguish the osteochondral lesions from normal bone, cartilage, and surrounding soft tissue was assessed. Talar Dome. Treatment of Osteochondral Lesions of the Medial Talar Dome with Osteochondral Autograft Transplantation Operative Techniques in Orthopaedics, Vol. Bale RJ, Hoser C, Rosenberger R, Rieger M, Benedetto KP, Fink C. Osteochondral lesions of the talus: computer-assisted retrograde drilling—feasibility and accuracy in initial experiences. Osteochondral lesions are injuries to the talus (the bottom bone of the ankle joint) that involve both the bone and the overlying cartilage. The talus is the 3rd most common site (after the knee and elbow) of osteochondral lesions. It is also called an osteochondral defect (OCD) or osteochondral lesion of the talus (OLT). Osteochondral lesions (OCL) of the talus involve both articular cartilage and subchondral bone of the talar dome. 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 . OCDs of the talus represent damage to the articular surface of the talar dome in the ankle joint. Osteochondral lesions are relatively common in children and adolescents, and the incidence is increasing. 2 of 7 Posadzy et al: Staging of Osteochondral Lesions of the Talus Figure 1: Location of the OCL according to the mechanism of trauma. Ankle Traction During MRI of Talar Dome Osteochondral Lesions. 1 ) and anterolateral (46%) talar dome ( 1 ). Clin Orthop Relat Res. Prognosis of these lesions depends on stability, location, and size of the lesion.Imaging has an essential role in the diagnosis, staging, and management of osteochondral lesions. 1976 Jan-Feb;(114):185–191. The lesion’s location does not technically limit the ability to perform the conventional surgical treatments discussed in this chapter as it does other restorative procedures, such as osteochondral autograft or allograft transplantation (i.e., osteoarticular transfer system [OATS]) or autologous chondrocyte implantation (ACI), which require greater access to the talar dome. Osteochondral lesion of the talus in children: Are there MRI ... Keywords Ankle .Children .MRI .OCD .OLT .Osteochondritisdissecans .Osteochondrallesion .Talar dome Introduction Osteochondritis dissecans (OCD) ... 2 Department of Radiology, Children ’s Hospital … Foot Ankle Int 1999; 20( 8): 474– 480. A talar dome lesion can be difficult to diagnose because the precise site of the pain can be hard to pinpoint. It is also called an osteochondral defect (OCD) or osteochondral lesion of the talus (OLT). An osteochondral injury to the talar dome produces pain at the ankle and you will … Radiology. Materials and method: This retrospective IRB-approved and HIPPA-compliant study included children with OLT, who underwent an ankle MRI examination between March … The talus is a bone in the foot that helps form the ankle joint. … A partial fluid cleft at its posterior margin and a mild subchondral oedema suggests an unstable lesion. Talar dome lesions are usually caused by … Osteochondral lesions (osteochondritis dissecans) of the talus are common articular lesions that are usually traumatic in origin. Is seen on a mortise x-ray view Radiology: Volume 252:... Radiology Volume. The osteochondral fragments injury, it can also occur from chronic overload due to malalignment or instability of the fragments... 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