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Carpal Tunnel SyndromeCarpal Tunnel Syndrome can be a problem with any repetitive task involving the hands, but with increased use of computers this disorder is becoming a concern for many people. The carpal tunnel is an opening comprised of the bones of the wrist and the transverse ligament through which run the flexor tendons of the hand, the median nerve and the deep radial artery and vein. Because the tunnel is a rather small space, any inflammation in the area takes up room and can constrict these structures.The median nerve supplies sensation to the hand - in particular to the thumb, the first two fingers and half of the ring finger. It also innervates the muscles of the thumb. The flexor tendons bend the fingers, allowing you to grasp objects or hit the keys on the computer. The tendons are surrounded by a fascia which lubricates and helps the tendons to glide smoothly. If there is inflammation of the tendon causing it to swell, it can be further constricted by this fascia. Signs and Symptoms Symptoms of carpal tunnel syndrome include numbness in the hand along the median nerve route - the thumb, first two fingers and half of the ring finger. There may also be pain along the same route as well as radiating up the arm and into the shoulder or even the neck. Progression of the condition can lead to weakness in the muscles of the thumb which can affect the ability to hold objects. One of the signs of the disorder involves tapping on the wrist at the area of the carpal tunnel (Tinel test) which may cause pain or numbness along the nerve route. There are also tests for nerve conductivity which help in diagnosing the disorder. Treatment Catching the condition early can make a world of difference. If it has progressed so far as to have caused muscle weakness then the chances of successfully treating are significantly reduced. Treatments may vary but usually call for Physical Therapy which emphasizes reducing the inflammation and restoring range of motion and strength of the hand and wrist. It may involve ultrasound, mobilization of the bones of the wrist, gentle stretching, strengthening exercises, ice and possibly splinting. Prevention Preventing the problem in the first place is the best course of action. Here are some tips to think about when using a computer: Make sure your chair is adjusted properly. A rule of thumb for adjusting the height is to sit up straight with your arm hanging down at your side, the crease of the elbow should be about even with the tops of the keys. If this causes the chair to be quite high, be sure to use a foot rest of some sort to reduce discomfort to the legs; you can also see if it is possible to lower the desk at all. Don't rest your palms down when keying or using the mouse. This puts compression on the area of the carpal tunnel while you are asking the hands and fingers to work. The hands should be held up with the wrists in a straight position while keying, you can rest them down during pauses. Take frequent mini-breaks during the time spent on the computer (or any other activity that requires a lot of hand work). Take a 30 second break every 30 minutes. Do stretches for the hands, forearms, shoulders, neck and back; stand up to change position, reverse position. Keep your hands and forearms strong and flexible. Strong muscles work more efficiently and flexibility of the muscles help to take tension off of the tendons. If you develop any pain or numbness in the hands or wrists be sure to see your physician about it. Remember, early treatment is important.
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