Presentation
Long standing posterior ankle pain
Patient Data
Age: 45 years
Gender: Female
From the case:
Os trigonum syndrome
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Info
Big os trigonum with subchondral cysts and surrounding reactive changes. Corresponding bone marrow oedema in the articulating posterior talus and distal dorsal tibia. Osteochondral lesion of the medial talar dome.
Case Discussion
There are different types of posterior ankle impingement, an os trigonum is a predisposing factor for one type of posterior ankle impingement.
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