title: Adaptation of the properties of spastic muscle with wrist extension deformity.
abstract: To show that human muscle may adapt to tendon transfer, adaptation of flexor carpi ulnaris (FCU) function was studied by measuring active and passive length-force characteristics at initial operation and at reoperation in a case of extension deformity secondary to FCU tendon transfer. At reoperation, FCU was 20 mm shorter; active force decreased approximately 10%, indicating atrophy; and passive force increased, reflecting increased stiffness. FCU fiber length was unchanged. The presented case shows that human forearm muscle may adapt to a transferred function.
authors.affiliation: Department of Plastic, Reconstructive and Hand Surgery, Academic Medical Center, Amsterdam, Suite G4-226, P.O. Box 22700, 1100 DE Amsterdam, The Netherlands.
authors.forename: Mark J C
authors.initials: MJ
authors.lastname: Smeulders
authors.forename: Michiel
authors.initials: M
authors.lastname: Kreulen
mesh_terms: D000222:Adaptation, Physiological / Q000502:physiology*; D000328:Adult; D002547:Cerebral Palsy / Q000503:physiopathology*; D006801:Humans; D008297:Male; D009119:Muscle Contraction / Q000502:physiology; D009128:Muscle Spasticity / Q000503:physiopathology* / Q000601:surgery; D018482:Muscle, Skeletal / Q000502:physiology* / Q000601:surgery; D016059:Range of Motion, Articular / Q000502:physiology; D012086:Reoperation; D014955:Wrist Joint / Q000502:physiology* / Q000601:surgery