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Definition
By Mayo Clinic staffCarpal tunnel syndrome is a progressively painful hand and arm condition caused by a pinched nerve in your wrist. A number of factors can contribute to carpal tunnel syndrome, including the anatomy of your wrist, certain underlying health problems and possibly patterns of hand use.
Bound by bones and ligaments, the carpal tunnel is a narrow passageway — about as big around as your thumb — located on the palm side of your wrist. This tunnel protects a main nerve to your hand and nine tendons that bend your fingers. Compression of the nerve produces the numbness, pain and, eventually, hand weakness that characterize carpal tunnel syndrome.
Fortunately, for most people who develop carpal tunnel syndrome, proper treatment usually can relieve the pain and numbness and restore normal use of their wrists and hands.
- Carpal tunnel syndrome fact sheet. National Institute of Neurological Disorders and Stroke. http://www.ninds.nih.gov/disorders/carpal_tunnel/detail_carpal_tunnel.htm. Accessed Dec. 20, 2010.
- Carpal tunnel syndrome. American Academy of Orthopaedic Surgeons. http://orthoinfo.aaos.org/topic.cfm?topic=a00005. Accessed Dec. 20, 2010.
- Carpal tunnel syndrome. American Society for Surgery of the Hand. http://www.assh.org/Public/HandConditions/Pages/CarpalTunnelSyndrome.aspx. Accessed Dec. 20, 2010.
- Scott KR, et al. Etiology of carpal tunnel syndrome. http://www.uptodate.com/home/index.html. Accessed Dec. 20, 2010.
- Wright PE. Carpal tunnel, ulnar tunnel, and stenosing tenosynovitis. In: Canale ST, et al. Campbell's Operative Orthopaedics. 11th ed. Philadelphia, Pa.: Mosby Elsevier; 2008. http://www.mdconsult.com/books/page.do?eid=4-u1.0-B978-0-323-03329-9..50076-3&isbn=978-0-323-03329-9&type=bookPage§ionEid=4-u1.0-B978-0-323-03329-9..50076-3--cesec9&uniqId=230418749-3. Accessed Dec. 20, 2010.
- Clinical practice guideline on the diagnosis of carpal tunnel syndrome. Rosemont, Ill.: American Academy of Orthopaedic Surgeons. http://www.aaos.org/research/guidelines/CTS_guideline.pdf. Accessed Dec. 21, 2010.
- Clinical practice guideline on the treatment of carpal tunnel syndrome. Rosemont, Ill.: American Academy of Orthopaedic Surgeons. http://www.aaos.org/research/guidelines/CTSTreatmentGuideline.pdf. Accessed Dec. 21, 2010.
- Scott KR, et al. Treatment of carpal tunnel syndrome. http://www.uptodate.com/home/index.html. Accessed Dec. 21, 2010.
- Amadio PC (expert opinion). Mayo Clinic, Rochester, Minn. Dec. 21, 2010.
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