Presentation
Illustration
From the case:
Posterior ankle impingement - illustration of causes
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Illustration of potential causes of ankle impingement:
A. os trigonum syndrome
B. stieda process
C. downsloping of the posterior tibia
D. fracture of the lateral tubercle of posterior process of talus
E. prominent superior calcaneus (Haglund deformity)
F. inflammatory tissue
Case Discussion
Posterior ankle impingement (PAI) syndrome is one of the impingement syndromes involving the ankle. It is classically described in ballet dancers.