Open surgical excision of the os trigonum has been the traditional treatment for posterior ankle impingement syndrome. However, the endoscopic excision has recently become quite popular. This article outlines research findings of a recent study which investigated comparative efficacy of open versus endoscopic excision of os trigonum.
Posterior ankle impingement syndrome (PAIS) is a term used to describe a musculoskeletal disorder created from the repeated abutment of the posterior process of the talus or os trigonum between the tibia and calcaneus during plantarflexion of the ankle. Several predisposing anatomical factors associated with PAIS have been identified which include: Stieda process Os trigonum Fracture involving lateral tubercle of posterior process of talus Prominent superior surface of calcaneal tuberosity Prominent down slope of posterior tibial articular surface Abnormal…
