title: [Congenital subluxation of the metacarpophalangeal joint of the thumb as the cause of writer's syndrome].
abstract: A 26-year-old male patient developed a writer's cramp syndrome, the underlying cause of which was shown to be a congenital subluxation of the first metacarpophalangeal joint. The clinical symptoms are presented, the indications for surgery reviewed and the operative technique in accordance with A.N. Witt described. Post-operatively, the pathological hypermobility of the first metacarpophalangeal joint has been eliminated, and global function of the hand has normalized.
mesh_terms: D000328:Adult; D005384:Finger Joint; D006236:Handwriting; D006801:Humans; D004204:Joint Dislocations / Q000150:complications / Q000151:congenital* / Q000601:surgery; D008297:Male; D008662:Metacarpophalangeal Joint; D009120:Muscle Cramp / Q000209:etiology*; D013709:Tendon Transfer / Q000379:methods; D013933:Thumb
vernacular_title: Angeborene Daumengrundgelenks-Subluxation als Ursache für ein Schreibkrampf-Syndrom.