1 ) and anterolateral (46%) talar dome ( 1 ). It is often associated with a traumatic injury, such as a severe ankle sprain. Most classification systems are based on lesion descriptions by Berndt and Harty ( 2 ): The ankle OCD lesion is rare in the pediatric population, mainly occurring in adults with the average age being 21 years of age. The medial and lateral articular facets of the talus articulate with the medial and lateral malleoli. Other terms used include an osteochondral defect (OCD), osteochondral lesion of the talus (OLT) and osteochondritis dessecans, which are all used interchangeably. The talus is the 3rd most common site (after the knee and elbow) of osteochondral lesions. Osteochondritis dissecans (OCD or OD) is a joint disorder primarily of the subchondral bone in which cracks form in the articular cartilage and the underlying subchondral bone. The talar dome is trapezoidal in shape, and its anterior surface is, on average, 2.5 mm wider than the posterior surface. Berndt and Harty proved this in a report in which anteromedial and posterolateral lesions were created using cadavers.4 They found that anterolateral lesions could be created by dorsiflexing and inverting the ankle, causing the anterolateral aspect of the talar dome to impinge on the fibula. During this period of immobilization, nonweightbearing range-of-motion exercises may be recommended. Most often present with a chief complaint of a sprained ankle. There are differing degrees of severity varying from very small undisplaced lesions to those that create large loose bodies and develop cysts in the talus. Talar dome injuries result from trauma to the ankle including ankle sprains (6-38% of all ankle sprains), fractures (greater than 70% of all ankle fractures). Talar dome lesions … 44,61,70 Classic teaching is that lateral OLTs are more likely due to trauma than medial lesions, with 94% of lateral lesions and 62% of medial lesions being caused by trauma. A talar dome lesion is an injury to the cartilage and underlying bone of the talus within the ankle joint. Please note that OCD is a commonly used abbreviation for both osteochondral defect and osteochondritis dissecans, two closely related conditions. The most common sites are the posteromedial (53%) ( Fig. The result is a persistent deep pain in the ankle and recurrent swelling with activity. A talar dome lesion is an injury to the cartilage and underlying bone of the talus within the ankle joint. It is also called an osteochondral defect (OCD) or osteochondral lesion of the talus (OLT). Osteochondraldefect is a broad term that describes the morphological change of a localized gap in the articular cartilage and subchondral bone 5. Symptoms related to this condition are nonspecific including pain, swelling, stiffness, and mechanical symptoms of locking and catching. This condition is also known as either osteochondritis dissecans (OCD) of the talus or as a talar osteochondral lesion (OCL). Presentation. Appropriate management is therefore vital. Osteochondral lesions of the talar dome are relatively common causes of ankle pain and disability. Talar dome lesions … It is also called an osteochondral defect (OCD) or osteochondral lesion of the talus (OLT). Often there is pain with pressure on the medial and lateral gutters of the ankle joint, and there may also be pain with compression of the joint or rotation of the joint. Symptoms of osteochondral lesions of the talus tend to develop gradually, and … “Osteo” means bone and “chondral” refers to cartilage. “Osteo” means bone and “chondral” refers to cartilage. 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. Background: Talar osteochondral lesions represent challenging clinical entities, particularly in high-demand athletes. Epidemiology. Cause. It is also called an osteochondral defect (OCD) or osteochondral lesion of the talus (OLT). One of the best diagnostic tests of an ankle osteochondral lesion of the talus is a diagnostic anesthetic injection of the ankle joint. It is also called an osteochondral defect (OCD) or osteochondral lesion of the talus (OLT). The dome of the talus is covered by the trochlear articular surface, which supports the weight of the body. In these cases, the most affected area is the posteromedial talar dome (see Table 71-1). In later stages of the disorder there will be swelling of the affected joint which catches and locks during movement. An osteochondral lesion of the talar dome is a condition characterized by damage to the cartilage and / or bone surfaces of the upper (superior) aspect of the talus bone (i.e. non-surgical treatment fails to relieve the symptoms of talar dome It is currently accepted that OCL of the talus is primarily traumatic in origin. the talar dome) in the ankle. Figure 1 Relevant Anatomy for an Osteochondral Lesion of the Talar Dome This is referred to as an osteochondral defect (OCD) or osteochondral lesion of the talus (OLT). An osteochondral lesion of the talus (OLT) is an area of abnormal, damaged cartilage and bone on the top of the talus bone (the lower bone of the ankle joint). A talar dome lesion is an injury to the cartilage and underlying bone of the talus within the ankle joint. Hereby, the most common reasons are a severe inversion ankle sprain, chronic ankle instability (CAI; causing in 5–9% of the cases a lateral talar OCL), 9, 10 or a fracture mechanism. 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. Lateral lesions are located in the middle third of the talar dome and are shallow and wafer- shaped. “Osteo” means bone and “chondral” refers to cartilage. (1,2,3) Talar dome injuries create a focal defect in the dome of the talus that results in injury to the cartilage and underlying bone. incidence. “Osteo” means bone and “chondral” refers to cartilage. Methods: A professional rugby league player underwent surgery for a complex injury to the ankle. “Osteo” means bone and “chondral” refers to cartilage. On the basis of repetitive microtraumas, avascular … OCD usually causes pain during and after sports. 69% of ankle fractures. 66 The mechanism for traumatic impaction of the lateral … A talar dome lesion is an injury to the cartilage and underlying bone of the talus within the ankle joint. The treatment options are numerous and constantly evolving, with no well-established evidence base to … This presents as a more challenging condition to treat and can often only be addressed by surgical intervention. Trauma is the most common cause, but ischemic necrosis, endocrine disorders, and genetic factors may have etiologic significance. Osteochondral lesion of the talus (OLT) is a common condition associated with ankle injury that brings challenges in the diagnosis and treatment. Talar dome fractures are often missed at the initial examination following an ankle sprain or injury. Talar dome lesions … Talar dome lesions … It is often used synonymously with osteochondral injury/defect in the pediatric population. Treatment for osteochondral lesions of the talar dome vary depending on the severity of the injury. There is an association with trauma to the ankle, particularly in lateral talar dome lesions. Most lesions are trauma-induced, located on the lateral side, and can be diagnosed well by combining a proper history and physical with MRI. The vast majority of lateral lesions are associated with a distinct traumatic episode and patients … Symptoms of Osteochondral Lesion of the Talus. Osteochondral lesions of the talus, or talar dome lesions, can be classified as ischaemic or traumatic injuries and can be debilitating if untreated. , avascular … osteochondral lesions of the talus that involves bone ( Osteo ) and untreated talar dome lesion 46... And locks during movement the affected joint which catches and locks during movement wider than the posterior.... 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