According to Giza, fewer than 50% of OCD cases can be identified on an X-ray. Regular CT scans can be misleading, and MRI of the talus can be useful in identifying some cartilage delamination or ...

This is a problem which occurs after an injury to the ankle. Most causes of OCD of the talus usually follow a twisting injury to the ankle and are actually fractures of the joint surface (talar dome).