title: Carpometacarpal joint disease: addressing the metacarpophalangeal joint deformity.
abstract: The successful surgical treatment of arthrosis of the carpometacarpal articulation of the thumb requires a thorough understanding and evaluation of the intercalated axis of the first ray. A hyperextension/adduction deformity commonly occurs at the metacarpophalangeal joint of the thumb with advanced stages of carpometacarpal arthrosis. Failure to recognize and treat the metacarpophalangeal deformity may result in continued pain and poor outcomes. Additionally, the stability of the ligament reconstruction may become compromised, resulting in recurrence of deformity and longitudinal collapse. This article presents an orderly means of clinical and radiographic evaluation of this deformity and recommends surgical treatments to correct hyperextension and maximize functional outcomes. A treatment algorithm is provided.
authors.affiliation: Department of Orthopaedics, Division of Hand and Microvascular Surgery, New Jersey Medical School, University of Medicine and Dentistry of New Jersey, ACC - D1626, 140 Bergen Street, Newark, NJ 07103, USA.
authors.forename: Edward J
authors.initials: EJ
authors.lastname: Armbruster
authors.forename: Virak
authors.initials: V
authors.lastname: Tan
mesh_terms: D000465:Algorithms; D052737:Carpometacarpal Joints / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D008662:Metacarpophalangeal Joint / Q000503:physiopathology* / Q000601:surgery; D010003:Osteoarthritis / Q000503:physiopathology* / Q000628:therapy; D016059:Range of Motion, Articular / Q000502:physiology