title: Traumatic dislocation of the hamate and pisiform: a case report and review of the literature.
abstract: Isolated dislocation of the hamate bone and pisiform bone is rare. We describe the simultaneous complete dislocation of both the hamate and pisiform bones in a 27-year-old man who crushed his right hand in a rolling press. An open reduction and internal fixation with Kirschner wires was performed. Four weeks later, the Kirschner wires were removed and rehabilitation was started. At 6 months follow-up, the patient had minimal pain and full range of motion in the affected wrist joint and fingers. However, grip strength was 50% compared to his unaffected left hand, and sensation of the ulnar nerve area was reduced to almost 30% of that of his left hand. It appears that the ulnar nerve injury was the largest contributing factor to the poor outcome of our patient. Evaluation of soft-tissue injuries, especially nerve injury, is important in the treatment of complex carpal dislocations.
authors.affiliation: Department of Orthopaedic Surgery, Wadayama Hospital, Wadayama, Japan.
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Matsumoto
authors.forename: Masaya
authors.initials: M
authors.lastname: Tsunoda
authors.forename: Shinji
authors.initials: S
authors.lastname: Yamaguchi
authors.forename: Kiyoyasu
authors.initials: K
authors.lastname: Koso
authors.forename: Shinji
authors.initials: S
authors.lastname: Matsushita
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kurosaka
authors.forename: Shinichi
authors.initials: S
authors.lastname: Yoshiya
mesh_terms: D000328:Adult; D001864:Bone Wires; D002348:Carpal Bones / Q000293:injuries*; D005593:Fracture Fixation, Internal; D006801:Humans; D004204:Joint Dislocations / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D011859:Radiography; D014954:Wrist Injuries / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*