Wondering what carpal tunnel syndrome is? Want to know more about treatment and prevention?

We asked the National Institute of Neurological Disorders and Stroke for answers to our questions.

We know: Carpal Tunnel Syndrome Facts

What is carpal tunnel syndrome?

Carpal tunnel syndrome occurs when tendons or ligaments in the wrist become enlarged, often from inflammation, after being aggravated. The narrowed tunnel of bones and ligaments in the wrist pinches the nerves that reach the fingers and the muscles at the base of the thumb.

What are the symptoms of carpal tunnel syndrome?

The first symptoms usually appear at night. Symptoms range from a burning, tingling numbness in the fingers, especially the thumb and the index and middle fingers, to difficulty gripping or making a fist, to dropping things.

What causes carpal tunnel syndrome?

Some cases of carpal tunnel syndrome are due to work-related cumulative trauma of the wrist. Diseases or conditions that predispose to the development of carpal tunnel syndrome include pregnancy, diabetes, and obesity.

What's the treatment for carpal tunnel syndrome?

Carpal tunnel syndrome is treated by immobilizing the wrist in a splint to minimize or prevent pressure on the nerves. If that fails, patients are sometimes given anti-inflammatory drugs or injections of cortisone in the wrist to reduce the swelling.

What about surgery?

There is also a surgical procedure in which doctors can open the wrist and cut the ligament at the bottom of the wrist to relieve the pressure. However, only a small percentage of patients require surgery.

What are the prospects for recovery?

Approximately 1 percent of individuals with carpal tunnel syndrome develop permanent injury. The majority recover completely and can avoid re-injury by changing the way they do repetitive movements, the frequency with which they do the movements, and the amount of time they rest between periods when they perform the movements.

What research is being done?

Much of the on-going research on carpal tunnel syndrome is aimed at prevention and rehabilitation. The National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) funds research on carpal tunnel syndrome.

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