Osteochondritis dissecans of the ankle

Case contributed by Dr Eric F Greif


Ankle pain.

Patient Data

Age: 20 years
Gender: Female

There is a curvilinear subcortical lucency between a thin ossific density and the remaining taler dome. There is minimal anterior ankle soft tissue swelling. Findings are consistent with osteochondritis dissecans of the talus.

The osteochondral fragment (white arrow) projects into the lateral ankle joint space (visualized on frontal and oblique views as well).  

Case Discussion

The talar pathology was missed on a prior radiograph. The patient continued to have pain and a repeat radiograph (above) was performed. The osteochondral fragment can become a free intra-articular loose body. Surgery is performed to prevent secondary osteoarthritis

This is an example of type 3 osteochondritis dissecans.

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Case information

rID: 29653
Published: 12th Jun 2014
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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