title: Treatment of soft tissue injuries to the dorsum of the metacarpophalangeal joint (Boxer's knuckle).
abstract: We retrospectively reviewed the surgical treatment for 16 cases of traumatic soft tissue injury to the metacarpophalangeal joint (Boxer's knuckle). A history of trauma was present in all cases and there was an associated extensor tendon dislocation in seven cases. Eight cases were initially treated conservatively, but their symptoms persisted. Intraoperative findings included rupture of the extensor hood or joint capsule in all cases. Surgical closure of the rupture of the joint capsule resulted in a successful outcome in all cases. We consider that conservative treatment of this injury may not be effective when the joint capsule of the metacarpophalangeal joint is ruptured. We recommend arthrography of the metacarpophalangeal joint to assist in the decision as to whether to proceed with surgical or conservative treatment.
authors.affiliation: Department of Orthopaedic Surgery, Hirosaki University School of Medicine, Aomori, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Arai
authors.forename: S
authors.initials: S
authors.lastname: Toh
authors.forename: K
authors.initials: K
authors.lastname: Nakahara
authors.forename: S
authors.initials: S
authors.lastname: Nishikawa
authors.forename: S
authors.initials: S
authors.lastname: Harata
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001914:Boxing / Q000293:injuries*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008662:Metacarpophalangeal Joint / Q000293:injuries* / Q000601:surgery*; D008875:Middle Aged; D012189:Retrospective Studies; D013708:Tendon Injuries / Q000209:etiology / Q000601:surgery*; D016896:Treatment Outcome