“Osteo” means bone and “chondral” refers to cartilage. OLTs typically are preceded by a traumatic event and generally result in vascular damage to the subchondral bone. Adjacent subtle marrow edema seen in the medial aspect of talus bone. With regard to the side of the lesion, observations have demonstrated consistently that lateral sided lesions are predominantly post-traumatic and the medial lesions are largely due to atraumatic causes, the results in our study also corroborate with the same findings. 2012; 28(12):1902-1907. This is referred to as an osteochondral defect (OCD) or osteochondral lesion of the talus (OLT). The surgical technique allows preservation of intact articular cartilage, in contrast to traditional methods. 10. Nelson SC, Haycock DM: Arthroscopy-assisted retrograde drilling of osteochondral lesions of the talar dome. Particulated juvenile cartilage allograft transplantation. This condition is also known as osteochondritis dissecans (OCD) of the talus or a talar osteochondral lesion (OCL). Hangody L: The mosaicplasty technique for osteochondral lesions of the talus. A talar dome lesion is an injury to the cartilage and underlying bone of the talus within the ankle joint. 11 Chondral injuries generally occur to either the anterolateral or posteromedial ankle. Other terms that refer to the same general process are osteochondral defects (OCD), osteochondritis dissecans Foot Ankle Surg. Arthroscopy. Etiology of these lesions is debated but trauma seems the most supported etiology. in 1984 emphasized that these lesions should not be called as osteochondritis dissecans but be grouped under a broader term “osteochondral lesions of the talar dome.” The arthroscopic treatment of these lesions was first described by Parisien and Pritsch et al. Calder JD, Ballal MS, Deol RS, Pearce CJ, Hamilton P, Lutz M. Histological evaluation of calcaneal tuberosity cartilage—a proposed donor site for osteochondral autologous transplant for talar dome osteochondral lesions. “Osteo” means bone and “chondral” refers to cartilage. Osteochondral defect is a broad term that describes the morphological change of a localized gap in the articular cartilage and subchondral bone 5.It is often used synonymously with osteochondral injury/defect and in the pediatric population. We have … Mild joint effusion is seen at tibio-talar and subtalar joints. 73. 22(7):544-51. . Radiographs showed a suspicious area on the lateral talar dome. The use of various A classification was proposed by Bemdt and Harty (1959) who found that both the medial and lateral OCL of the talus could be induced by trauma; they named this lesion transchondral fracture. A talar dome lesion is an injury to the cartilage and underlying bone of the talus within the ankle joint. An osteochondral lesion of the talus (OLT) is defined as an injury to the talar dome that results in partial or total separation of the articular cartilage or subchondral bone. Assenmacher JA, Kelikian AS, Gottlob C. Arthroscopically assisted autologous osteochondral transplantation for osteochondral lesions of the talar dome: an MRI and clinical follow-up study. It is also called an osteochondral defect (OCD) or osteochondral lesion of the talus (OLT). In most joints of the foot and ankle, this layer of cartilage is one to a few millimeters thick. However, it can also occur from chronic overload due to malalignment or instability of the ankle joint. 9. onnenwerth MP, Roukis TS. JBJS 62(1): 97-102, 1980. 5. Talar dome lesions are usually caused by … Talar osteochondral lesions tend to involve the medial and lateral corners of the talar dome. “Osteo” means bone and “chondral” refers to cartilage. Anderson IF, Crichton KJ, Grattan-Smith T. Osteochondral fractures of the dome of the talus. Injuries to the talar dome should be suspected when an athlete presents with chronic ankle pain following an injury to the ankle. (B) Lesion debrided to stable margins. When two bones move relative to each other, their surface consists of a softer substance that we call cartilage. by "Bulletin of the NYU Hospital for Joint Diseases"; Health, general Anklebone Bone diseases Care and treatment Cartilage Injuries Osteochondritis Osteochondrosis Talus (Anklebone) (A) Unstable medial talar dome osteochondral lesion of the talus. The recognition of a traumatic etiology has increased our understanding and management of these disorders. Diagnosis of lesions is based on imaging. A talar dome lesion is an injury to the cartilage and underlying bone of the talus within the ankle joint. 2015 Sep;21(3):193-7. Talar dome lesions are usually caused by … Author information: (1)Broadlawns Medical Center, Des Moines, Iowa, USA. Approximately 10% of osteochondral talar dome lesions … Outcome of arthroscopic debridement and microfracture as the primary treatment for osteochondral lesions of the talar dome. This condition is also known as either osteochondritis dissecans (OCD) of the talus or as a talar osteochondral lesion (OCL). MRI images show a stage IV medial talar dome osteochondral lesion with a minimally displaced osseous fragment corresponding to the plain films. Detached osteochondral lesions and loose bodies secondary to osteochondral lesions of the talar dome usually require fragment removal and debridement of the bone bed. An osteochondral lesion to the talar dome is an injury that causes damage to the cartilage that sits on top of the talus. The talus is a bone in the foot that helps form the ankle joint. Sixteen patients (16 ankles) with symptomatic osteochondral lesions of the medial talar dome were treated arthroscopically with percutaneous retrograde drilling through the sinus tarsi. 3. Medial lesions are more common than the lateral ones and typically located at the posteromedial talar dome, with a typicall deep - cupshaped figure. Surgical treatment of large lesions often requires a 2-step procedure, or the use of osteotomy in the case of autologous osteochondral transfer, which can delay return to sport. 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. 2. cartilage lesions when evaluated arthroscopically.7 Etiology Many different terms have been used to describe these defects of talar articular cartilage including transchondral fracture, osteochondral fracture, osteochondritis dissecans, talar dome fracture, and flakedfracture. 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