title: Posterior ankle impingement.
abstract: Posterior ankle impingement is a common cause of chronic ankle pain and results from compression of bony or soft tissue structures during ankle plantar flexion. Bony impingement is most commonly related to an os trigonum or prominent trigonal process. Posteromedial soft tissue impingement generally arises from an inversion injury, with compression of the posterior tibiotalar ligament between the medial malleolus and talus. Posterolateral soft tissue impingement is caused by an accessory ligament, the posterior intermalleolar ligament, which spans the posterior ankle between the posterior tibiofibular and posterior talofibular ligaments. Finally, anomalous muscles have also been described as a cause of posterior impingement.
authors.affiliation: University of Bologna, Rizzoli Orthopaedic Institute, Bologna, Italy.
authors.forename: Sandro
authors.initials: S
authors.lastname: Giannini
authors.forename: Roberto
authors.initials: R
authors.lastname: Buda
authors.forename: Massimiliano
authors.initials: M
authors.lastname: Mosca
authors.forename: Alessandro
authors.initials: A
authors.lastname: Parma
authors.forename: Francesco
authors.initials: F
authors.lastname: Di Caprio
mesh_terms: D016512:Ankle Injuries / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy*; D000843:Ankle Joint / Q000503:physiopathology*; D003937:Diagnosis, Differential; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy*; D008023:Ligaments, Articular / Q000293:injuries / Q000503:physiopathology; D010147:Pain Measurement; D012307:Risk Factors