title: Locked metacarpo-phalangeal joint of the thumb.
abstract: 16 patients developed locking of the M.P. joint of the thumb as the result of a hyperextension injury. Four were successfully treated by manipulation under an intra-articular injection of a local anaesthetic, while the remaining twelve required open reduction. All were examined 4 to 48 months after treatment (average 12 months). The torn palmar plate and the accessory collateral ligament, which acted as a constrictive band, were trapped on the prominence of the radial condyle of the metacarpal. Four of the twelve surgically-treated patients had a deformity which we believe was congential: a transverse groove over the radial condyle of the metacarpal. No patients had a recurrence of the locked joint.
authors.affiliation: Department of Orthopaedic Surgery, Nagoya University School of Medicine, Japan.
authors.forename: G
authors.initials: G
authors.lastname: Inoue
authors.forename: T
authors.initials: T
authors.lastname: Miura
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D005383:Finger Injuries; D006801:Humans; D004204:Joint Dislocations / Q000601:surgery*; D008297:Male; D008662:Metacarpophalangeal Joint / Q000293:injuries* / Q000601:surgery; D008875:Middle Aged; D013933:Thumb / Q000601:surgery