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Arthrogryposis Multiplex Congenita

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Copyright 1986, 1988, 1990, 1991, 1997, 1999, 2010

NORD is very grateful to Judith G. Hall, OC, MD, FCAHS, Professor Emerita of Pediatrics and Medical Genetics, UBC & Children's and Women's Health Centre of British Columbia, Department of Pediatrics, BC's Children's Hospital, for assistance in the preparation of this report.

Synonyms of Arthrogryposis Multiplex Congenita
  • AMC
  • arthrogryposis

Disorder Subdivisions

  • amyoplasia
  • distal arthrogryposis


General Discussion
Arthrogryposis is a general or descriptive term for the development of nonprogressive contractures affecting one or more areas of the body. A contracture is a condition in which a joint becomes permanently fixed in a bent (flexed) or straightened (extended) position, completely or partially restricting the movement of the affected joint. When congenital contractures occur only in one body area, it is not referred to as arthrogryposis but rather an isolated congenital contracture. The most common form of an isolated congenital contracture is clubfoot. When arthrogryposis affects two or more different areas of the body, it is referred to as arthrogryposis multiplex congenita (AMC). The most common form of AMC is amyoplasia. Arthrogryposis and arthrogryposis multiplex congenita are sometimes used interchangeably.

The symptoms of AMC are present at birth (congenital). However, specific symptoms and physical findings can vary greatly in range and severity from one person to another. In most cases, affected infants have contractures of various joints. The joints of the legs and arms are usually affected; the legs are affected more often than the arms. The joints of the shoulders, elbows, knees, wrists, ankles, fingers, toes, and/or hips are also commonly affected. In addition, the jaws and back are also often affected in individuals with AMC. In most cases, AMC occurs randomly, for no apparent reason (sporadic). More than 300 different conditions can cause isolated or multiple contractures and the causes, genetics, specific symptoms, and severity of these disorders vary dramatically.
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Organizations related to Arthrogryposis Multiplex Congenita
  • AVENUES
    P.O. Box 5192
    Sonora CA 95370
    Phone #: N/A
    800 #: --
    e-mail: info@avenuesforamc.com
    Home page: http://www.avenuesforamc.com
  • Arthrogryposis Group
    PO Box 5336
    Stourport-on-Severn Intl DY13 3BE
    Phone #: 017-47 -822655
    800 #: (80-0) -028-4447
    e-mail: info@taguk.org.uk
    Home page: http://www.tagonline.org.uk
  • Genetic and Rare Diseases (GARD) Information Center
    PO Box 8126
    Gaithersburg MD 20898-8126
    Phone #: 301-251-4925
    800 #: 888-205-2311
    e-mail: http://rarediseases.info.nih.gov/GARD/EmailForm.aspx
    Home page: http://rarediseases.info.nih.gov/GARD
  • MUMS National Parent-to-Parent Network
    150 Custer Court
    Green Bay WI 54301-1243
    Phone #: 920-336-5333
    800 #: 877-336-5333
    e-mail: mums@netnet.net
    Home page: http://www.netnet.net/mums/
  • Madisons Foundation
    PO Box 241956
    Los Angeles CA 90024
    Phone #: 310-264-0826
    800 #: N/A
    e-mail: getinfo@madisonsfoundation.org
    Home page: http://www.madisonsfoundation.org
  • March of Dimes Birth Defects Foundation
    1275 Mamaroneck Avenue
    White Plains NY 10605
    Phone #: 914-997-4488
    800 #: 888-663-4637
    e-mail: Askus@marchofdimes.com
    Home page: http://www.marchofdimes.com
  • NIH/National Arthritis and Musculoskeletal and Skin Diseases Information Clearinghouse
    1 AMS Circle
    Bethesda MD 20892-3675
    Phone #: 301-495-4484
    800 #: 877-226-4267
    e-mail: NIAMSinfo@mail.nih.gov
    Home page: http://www.niams.nih.gov/Health_Info

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Last modified Wednesday, November 26, 2008