An osteochondral talar defect involves the articular cartilage and subchondral bone and is
mostly caused by an ankle supination trauma. Conventional radiographs are useful as an
initial imaging tool in the diagnostic process, but have only moderate sensitivity for the
detection of osteochondral defects. Computed tomography (CT) and magnetic resonance
imaging (MRI) are more accurate imaging modalities. Alternatively, ultrasonography and
single photon emission computed tomography (SPECT) have been described. CT is the …