Osteochondral defect of the talus Introduction Osteochondral defect (OCD) of the talus is the 3rd most common location for an OCD after the knee and elbow.
Osteochondral defect of the talus Osteochondral defect (OCD) of the talus is the 3rd most common location for an OCD after the knee and elbow. First recognized by Konig in 1888 ; an osteochondral defect is loosely defined as an insult to both the articular cartilage and subchondral bone of the talus.
Historically, this was termed ‘osteochondritis dessicans’ to describe the idiopathic, atraumatic lesions that were found but osteochondral defect is now the widely accepted vernacular. Case You are evaluating a 17 year old soccer player with persistent ankle pain that has not improved with conservative therapy. She has previously had several ankle sprains.
You are suspicious of an osteochondral lesion. Which of the following imaging modalities is most sensitive for osteochondral defects of the talus? A) Ultrasound B) CT C) Radiographs D) MRI Radiograph of an OCD of the talus Pathophysiology The talus is particularly susceptible to OCD lesions. This in part due to the talus being covered in 60% articular cartilage with a tenuous blood supply. Talar OCD lesions are also associated with ankle sprains and fractures, one of the most common orthopedic conditions. Most lesions are found on either the anterolateral or posteromedial talar dome. The etiology and pathophysiology are poorly understood.
If you are experiencing symptoms that may be related to osteochondral defect of the talus, it is important to see a sports medicine physician. Early evaluation and treatment typically lead to better outcomes. Do not ignore pain or symptoms that are limiting your activity.
*This article is for educational purposes only and does not substitute for professional medical advice. Always consult a qualified healthcare provider.*
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