title: Intrinsic muscle advancement to treat chronic palmar instability of the metacarpophalangeal joint of the thumb.
abstract: Chronic palmar instability of the metacarpophalangeal joint of the thumb can result in a significant disability. Grasp, particularly pinch, is painful and weak because the thumb goes into hyperextension. Stabilization of the metacarpophalangeal joint can be achieved by distal advancement of the conjoined tendon of the abductor pollicis brevis and lateral fibers of the flexor pollicis brevis.
authors.affiliation: Hand Service, Hospital for Joint Diseases Orthopaedic Institute, New York, N.Y.
authors.forename: M A
authors.initials: MA
authors.lastname: Posner
authors.forename: V
authors.initials: V
authors.lastname: Langa
authors.forename: L
authors.initials: L
authors.lastname: Ambrose
mesh_terms: D000293:Adolescent; D000328:Adult; D005384:Finger Joint / Q000601:surgery*; D006801:Humans; D007593:Joint Instability / Q000601:surgery*; D008297:Male; D008662:Metacarpophalangeal Joint / Q000601:surgery*; D008722:Methods; D009132:Muscles / Q000601:surgery*; D013710:Tendons / Q000601:surgery; D013933:Thumb / Q000601:surgery*