title: Boutonniere deformity.
abstract: The boutonniere (French for button hole) deformity is a result of an injury to the finger extensor mechanism that causes a characteristic flexion attitude of the proximal interphalangeal joint and distal interphalangeal joint hyperextension. This article reviews the pertinent anatomy, the mechanisms of injury, the diagnosis, and a systematic approach to the prevention and treatment of the boutonniere deformity.
authors.affiliation: Hospital for Joint Diseases Orthopedic Institute, New York, New York, USA.
authors.forename: M S
authors.initials: MS
authors.lastname: Coons
authors.forename: S M
authors.initials: SM
authors.lastname: Green
mesh_terms: D000208:Acute Disease; D002908:Chronic Disease; D005383:Finger Injuries / Q000175:diagnosis / Q000473:pathology* / Q000628:therapy; D005384:Finger Joint / Q000473:pathology; D006227:Hand Deformities, Acquired / Q000175:diagnosis / Q000473:pathology* / Q000628:therapy; D006801:Humans; D004204:Joint Dislocations / Q000175:diagnosis / Q000473:pathology / Q000628:therapy; D007593:Joint Instability / Q000175:diagnosis / Q000473:pathology / Q000628:therapy; D013708:Tendon Injuries / Q000175:diagnosis / Q000473:pathology* / Q000628:therapy; D013710:Tendons / Q000473:pathology