Fig. 1
From: CT arthrography for demonstration of various articular injuries in post-sprained ankle pain
Right chronic diffuse ankle pain following prior lateral sprain. Axial CTA images through the talus at the level of the talar neck (a) and at the talar dome (b) demonstrate ATFL tear at its talar insertion (black arrow) along with irregular proximal fibers, note normal deep deltoid ligament (star). At the talar dome, there is an extensive OCL with cystic changes (dashed arrow) and delamination of the cartilage (white arrow). Coronal (c) and sagittal (d) CTA show medial and lateral type IIA OCLs (dashed arrows) with significant cartilage delamination (notched arrow) through the medial OCL. Note large osseous component (star). Note syndesmotic recess height measurement on coronal image