title: Case study: the painful os trigonum syndrome.
abstract: The painful os trigonum syndrome is one cause of posterolateral ankle pain. This syndrome is most prevalent in athletes who perform frequent and/or forceful plantar flexion. The painful os trigonum may be misdiagnosed as Achilles and/or peroneal tendinitis. In this case, the patient was misdiagnosed for 15 months and treated for tendinitis. The appropriate clinical tests to evaluate the os trigonum as a source of posterolateral ankle pain are outlined. The surgical and postoperative management for the patient are discussed. Clinicians should be aware of the painful os trigonum syndrome as a possible source of posterolateral ankle pain.
authors.affiliation: University of Delaware, Division of Physical Therapy, Newark, USA.
authors.forename: G P
authors.initials: GP
authors.lastname: Brown
authors.forename: R V
authors.initials: RV
authors.lastname: Feehery
authors.forename: S M
authors.initials: SM
authors.lastname: Grant
mesh_terms: D000328:Adult; D016512:Ankle Injuries / Q000503:physiopathology* / Q000534:rehabilitation / Q000601:surgery; D000843:Ankle Joint / Q000503:physiopathology* / Q000601:surgery; D001265:Athletic Injuries / Q000503:physiopathology / Q000534:rehabilitation / Q000601:surgery; D006801:Humans; D008297:Male; D010146:Pain / Q000209:etiology* / Q000534:rehabilitation / Q000601:surgery; D013577:Syndrome; D013628:Talus / Q000503:physiopathology* / Q000601:surgery