What is an osteochondral defect of the ankle?

An osteochondral ankle defect is a lesion of the talar cartilage and subchondral bone caused primarily by single or multiple traumatic events, leading to partial or complete detachment of the fragment. Defects cause deep ankle pain associated with weightbearing.

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What are the signs of an unstable lesion of an osteochondral defect?

MRI

high signal line (rim sign) demarcating fragment from bone usually indicates an unstable lesion, however, false positives can result from edema.
low signal loose bodies, outlined by high signal fluid.
donor defect filled with high signal fluid.
high signal subchondral cysts.

Is osteochondral defect the same as osteoarthritis?

Osteochondral lesions (OCs) are typically of traumatic origins but are also caused by degenerative conditions, in primis osteoarthritis (OA). On the other side, OC lesions themselves, getting worse over time, can lead to OA, indicating that chondral and OC defects represent a risk factor for the onset of the pathology.

What is an osteochondral defect?

An osteochondral defect refers to a focal area of damage that involves both the cartilage and a piece of underlying bone. These can occur from an acute traumatic injury to the knee or an underlying disorder of the bone.

What does full thickness chondral defect mean?

What does full thickness chondral loss mean? A chondral defect refers to a focal area of damage to the articular cartilage (the cartilage that lines the end of the bones). These can occur from an acute traumatic injury to the knee or an underlying disorder of the bone. what causes Chondrosis?

What is a lateral tibial plateau osteochondral defect?

Osteochondral defect (OCD) of the tibial plateau is a rare cause of chronic knee pain that may not present with features of swelling and locking. Patients with persistent undiagnosed knee symptoms that have not adequately responded to conservative measures such as physiotherapy should warrant further imaging.

What is OCD bone?

Osteochondritis dissecans (OCD) is a bone and cartilage injury that affects the knee, ankle and elbow. In OCD, a portion of the bone or cartilage separates from the surface of the joint and creates pain, swelling and sometimes a locking sensation. It is treated by orthopaedic physicians at CHOP.

What is an OCD lesion?

Osteochondritis dissecans (OCD) lesions can cause mild to severe pain in the ankle and the foot. If not treated properly, this overuse condition can lead to more painful osteoarthritis and limited joint function. Therefore, it is important to see a specialist who has experience in treating this foot and ankle condition.