carpal tunnel syndrome


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carpal tunnel syndrome:

see repetitive stress injuryrepetitive stress injury
or repetitive strain injury
(RSI), injury caused by repeated movement of a particular part of the body. Often seen in workers whose physical routine is unvaried, RSI has become epidemic since computers have entered the workplace in large
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.

carpal tunnel syndrome

[¦kär·pəl ¦tən·əl ′sin‚drōm]
(medicine)
A condition caused by compression of the median nerve in the passage between the wrist and carpal bones; characterized by nocturnal pain, numbness, and tingling in the hand.

carpal tunnel syndrome

carpal tunnel syndrome

A disorder that causes numbness in the hand and pain in the wrist due to the compression of the median nerve, which runs down the arm to the fingers. The pain can extend all the way to the neck and be extremely severe. People may have a genetic predisposition to this malady and those who suffer with thyroid problems, diabetes and rheumatoid arthritis are believed to be more susceptible.

Short, Repetitive Movement
Carpal tunnel syndrome is caused by short, repetitive movement, such as typing, knitting, and using vibrating tools for hours on end. Constant mouse movement is also a factor. The lack of rest in between these motions irritates and inflames the flexor tendons that travel with the median nerve to the hand through an area in the wrist called the "carpal tunnel," which is surrounded by bones and a transverse ligament. The inflamed tendons squeeze the nerve against the ligament.

The Treatments
The prescription for typists may be as simple as wrist exercises and the use of a wrist rest or ergonomic glove. The more severe remedy is surgery, in which the transverse ligament is cut to relieve pressure. See RSI and medical conditions.


The Median Nerve
There is so little space in the carpal tunnel that when the tendons get inflamed, the median nerve is pressed against the transverse ligament. (Image courtesy of www.carpal-tunnel.com.)







Rest the Wrist
High wrist rests help to avoid carpal tunnel syndrome by keeping the wrists elevated above the keyboard. Unfortunately, they are not widely found in retail stores.







Mousing Twists the Bones
The healthier way to grab a mouse is in the "handshake" position, whereby the forearm bones are not twisted. Evoluent's vertical mice keep the arm in this proper orientation. (Images courtesy of Evoluent, www.evoluent.com)


Mousing Twists the Bones
The healthier way to grab a mouse is in the "handshake" position, whereby the forearm bones are not twisted. Evoluent's vertical mice keep the arm in this proper orientation. (Images courtesy of Evoluent, www.evoluent.com)







An Ergonomic Glove
IMAK Products' Smart Glove uses a removable splint (upper cutout) to keep the wrist in the proper position. The ergoBeads (bottom cutout) massage the area to increase blood circulation and promote healthy muscle tissue. (Image courtesy of IMAK Products Corporation, www.imakproducts.com)
References in periodicals archive ?
The carpal tunnel syndrome localization of conduction abnormalities within the distal segment of the median nerve Brain, 102: 619-635.
Carpal tunnel syndrome electrodiagnostic aspects of fifty seven symptomatic hands.
Frequency of carpal tunnel syndrome after conservatively managed colles fracture.
Long term follow-up of carpal tunnel syndrome during pregnancy: a cohort study and review of the literature.
A practical electrophysiological guide for non surgical and surgical treatment of carpal tunnel syndrome.
High-resolution sonography versus EMG in the diagnosis of carpal tunnel syndrome.
Repetitive movements, whether due to work that requires the same hand motions (such as typing on a keyboard for hours) or recreational activities (such as knitting), also can cause carpal tunnel syndrome, Dr.
First Hand Medical has devised a non-surgical relief method for carpal tunnel syndrome sufferers that safely treats pain at the source.
Repetitive stress injuries such as carpal tunnel syndrome, a painful progressive condition caused by compression of a key nerve in the wrist, are a factor among call center workers, who may sit at their computers for six or seven hours a day.
Carpal Tunnel Syndrome Relief--It is projected with the increased use of keyboards that more people (including CPAs) will suffer from carpal tunnel syndrome.