The presence of an osteochondral lesion may initially go undetected and may manifest many months after the initial ankle injury. Arthroscopic microfracture of talonavicular OCLs may provide a … They are characterized by interruption of the blood supply of a bone, in particular to the epiphysis, followed by localized bony necrosis, and later, regrowth of the bone. [] This is a broad terminology that encompasses a variety of disorders including osteochondritis dissecans, osteochondral fractures, and osteochondral defects. This is known as an osteochondral Arthroscopic debridement and microfracture of osteo-chondral lesion of talar head (TH) of right foot. The lesions may either heal, stabilise or progress to subchondral bone cysts. SPECT-CT allows an etiological diagnosis to be made. The defects cause deep ankle pain associated with weightbearing. Fig 7. BACKGROUND: An osteochondral lesion of the navicular bone in the foot is rare. Author information: (1)Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia. A talar dome lesion is an injury to the cartilage and underlying bone of the talus within the ankle joint. This condition is also known as either osteochondritis dissecans (OCD) of the talus or as a talar osteochondral lesion (OCL). Osteochondritis dissecans (OCD) is a condition that develops in joints, most often in children and adolescents. Keller TC(1), Dempsey IJ(1), Park JS(2). As management differs for the two lesions, a correct diagnosis is important. Osteochondral lesions (OCLs) are focal articular injuries of the subchondral bone and the cartilage with a multifaceted cause (trauma, ligament instability, ischemic necrosis, malalignment, endocrine diseases, and others). “Osteo” means bone and “chondral” refers to cartilage. 9, 09.2005, p. 775-778. An osteochondral lesion of the navicular bone in the foot is rare. It is also called an osteochondral defect (OCD) or talar osteochondral lesion (OCL). The cartilage can be torn, crushed or damaged and, in rare cases, a cyst can form in the cartilage. fracture line extending to the joint surface; depression of the subchondral bone plate Such lesions are a tear or fracture in the cartilage covering one of the bones in a joint. Osteochondral lesions of the talus (OLT) are those that affect the chondral and subchondral areas of the talus. We prospectively reviewed 3 cases of osteochondral lesions and degenerative changes of the tarsal navicular joint involving a unique surgical approach consisting of microfracture of the lesions with concomitant arthrodiastasis. Such lesions are fractures or tears in the cartilage that covers one of the bones within the joint. With disease progression, the fragment may detach, leading to degenerative osteoarthritis (1). Osteochondral fractures appear as a combination of 1-2:. Patients typically present after a traumatic injury to the ankle (85%) and complain of prolonged pain, swelling, catching, stiffness, and/or instability. Levels of Evidence: Therapeutic, Level IV. An osteochondral defect of the talus is a lesion involving talar articular cartilage and subchondral bone. It may result in a defect that subsequently affects the subchondral bone, and in severe cases may lead to formation of an osteochondral fragment. 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. I asked if this could mean osteochondritis dissecans and my doctor said yes. 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). Intraop pic of cartliage damage inside big toe joint that was cleaned up and then drilled to stimualte cartilage regrowth (below) Intraop Pic before and after subchondral drilling for OCD 1st met head. INTRODUCTION. The patient is in the supine position with the legs spread. of medial half of osteochondral lesion of navicular bone (Na). Osteochondral autograft repair of talar head defect after navicular stress fracture : A case report. We surgically treated an osteochondral lesion associated with a stress fracture of the tarsal navicular. Injury/Nutrition. However, the typical location differs. Osteochondral defects (OCDs) are very localised areas of joint damage which can occur in a number of different joints , not just the ankle. An osteochondral lesion of the talar dome is an injury to the talus, which is a bone in the foot that along with the tibia forms the ankle joint. The subchondral cysts may develop due to the forcing of cartilaginous or synovial fluid with every step. 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