Presentation
Chronic anterior knee pain with a sensation of clicking
Patient Data
Age: 20 years
Gender: Male
From the case:
Osteochondritis dissecans - lateral femoral trochlea
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Info
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Large OCD defect with separated osteochondral fragment i.e. cortical bone with low signal intensity and overlying attached articular cartilage. Note clear fluid signal sitting between the fragment and underlying bone indicating separation. This situation therefore requires attempted repair (reattachment) or excision.
Case Discussion
Large separated osteochondral fragment typical of OCD although location is unusual. The lateral aspect of medial femoral condyle (tibio-femoral articulation) is the most common