Diagnostic Value of CT Arthrography for Evaluation of Osteochondral Lesions at the Ankle

Figure 3

Considering intraoperative findings as standard of reference. CTA showed improved sensitivity compared to MRI. Exemplarily, in this subject with an osteochondral defect at the medial talus only BMEL but no cartilage defect was depicted on MRI (a). The full thickness cartilage defect revealed by CTA (b) was confirmed with a probe intraoperatively (c).

(a)

(b)

(c)