title: [Habitual forward luxation of the head of the ulna. Apropos of a case].
abstract: The author has reported a case of volar dislocation of the ulnar head. This exceptional lesion occurred in a young woman with Crouzon's disease. No past history of trauma was found; the ulnar head was not avulsed and the triangular articular disk was not torn. The instability of the ulnar head was due to a flattened sigmoid cavity of the radius and aplasia of the extensor carpi ulnaris muscle. Recovery was made after a low resection of the diaphysis combined with lower radioulnar arthrodesis. This operation restored both power and a full range of movements to the wrist as well as preserved the normal appearance of the wrist.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000000981:diagnostic imaging / Q000601:surgery*; D011859:Radiography; D012008:Recurrence; D014457:Ulna / Q000293:injuries*
vernacular_title: Luxation habituelle de la tête cubitale en avant. A propos d'un cas.