When a known osteochondritis dissecans (OCD) lesion has been identified on plain radiograph, further characterisation of the lesion — and assessment of the surrounding joint — guides clinical decision-making.
A patient presents with a confirmed OCD lesion visible on knee X-ray. Additional joint pathology — such as involvement of the meniscus, ligamentous structures, or articular cartilage — may be suspected and needs to be ruled in or out to plan appropriate management.
The initial evaluation involves advanced imaging of the knee to characterise the OCD lesion in detail. This step provides structural information about the lesion that plain radiographs alone cannot supply.
In a patient with a known OCD lesion on x-ray, an MRI of the knee is an option to characterize the OCD lesion or when concomitant knee pathology is suspected such as meniscal pathology, ACL injury, or articular cartilage injury.
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