Carpal tunnel is the most common nerve compression in the arm and is a result of a median nerve compression at the wrist. It causes numbness and tingling in the first three and one-half fingers. As the condition progresses, muscle weakness and tension in the forearm muscles also occur. Carpal Tunnel is most prevalent in jobs with repetitive flexion and extension of the wrist. Many times, only the dominant hand will be affected, but it can affect both hands as well.
The tunnel is formed by the bones of the wrist and a ligament. The median nerve and some of the flexors’ tendons pass through it. The compression happens as the tunnel decreases in size or the structures that pass through the tunnel increase in size. An increase in the size of structures happens with repetitive actions of the wrist that cause swelling, which leads to fibroses and thickening of tendons. Adhesions can develop in the tendons of forearm muscles that pass through the tunnel. Scar tissue formed in the ligament or any condition that leads to swelling and water retention can also cause an increase in pressure.
Massage therapy can address the swelling, fascial restrictions, tension in the muscles, and trigger points. Massage works best for carpal tunnel caused by overuse and repetitive strain activity. For best outcomes, massage is performed two times a week for a few weeks, followed by once a week for four weeks. Usually a splint is also worn for several weeks, especially at night, to keep the wrist in a neutral position.
