What medical problem does a carpenter, typist, truck driver, jackhammer operator, violinist, pianist and court stenographer have in common? Carpal tunnel syndrome! Over the past 10-15 years, carpal tunnel syndrome has moved to the forefront in medicine and has become water cooler conversation. So what is carpal tunnel syndrome and how is it treated?
Carpal tunnel syndrome (CTS) is a nerve disorder caused by compression of the median nerve at the wrist. The median nerve is one of three main nerves that provide sensation to the hand. This nerve specifically supplies sensation to the thumb, index, middle, and half of the ring finger. In CTS, compression on the median nerve occurs as it travels through a narrow passage in the wrist called the carpal tunnel. The carpal tunnel is formed by eight bones in the wrist (the floor of the tunnel) and the transverse carpal ligament, a strong ligament traveling across the roof of the tunnel. Within the tunnel there are nine tendons, which are a bit smaller than a pencil. These tendons share this space with the median nerve. In the case where there is swelling on the structures in the carpal tunnel, a person can experience pins and needles, numbness, and aching in the hand.
Common causes of CTS include:
Risk factors for CTS include:
Some common symptoms include:
To be properly diagnosed, a physician will discuss your symptoms and medical history, and examine strength and sensation. A nerve conduction study, electromyography (EMG), and x-ray may be ordered to provide information regarding sensation in the median nerve distribution and confirm compression at the carpal tunnel.
Treatment focuses on the causes. Therefore treatment suggestions may include activity modification and postural changes during activities. Other suggestions may include frequent rest periods, elevation, and exercises or stretching. Wrist splints are effective in relieving compression at the carpal tunnel and are typically recommended for night wear. Appropriate fit of the splint is vital. Occupational therapists or certified hand therapists can check the fit of pre-fabricated splints or can fabricate a custom splint. The above mentioned treatments all focus on decreasing inflammation and compression on the median nerve.
Your physician may order pain relievers or anti-inflammatory medication. A cortisone injection into the carpal tunnel may also be recommended to assist with decreasing inflammation near the carpal tunnel.
A referral to an occupational therapist or certified hand therapist may be made. A therapist can provide information regarding the diagnosis, appropriate treatment, and symptom reduction. They can make recommendations to introduce into daily activities to allow appropriate positioning of the upper extremities. A therapist will also instruct individuals on helpful stretching exercises or fabricate a wrist splint. Other treatments include ultrasound, iontophoresis, and massage. The focus of therapy is to introduce changes and interventions that reduce inflammation at the carpal tunnel to assist with symptom relief.
Surgery, referred to as a carpal tunnel release, may be indicated if symptoms are significant and impair functional activity performance.
To reduce your chances of getting CTS:
Guest Contributor: Nancy N. Naughton, OT, MS, CHT is a certified hand therapist at Professional Orthopedics in Scranton, PA.
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This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com
Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at The Commonwealth Medical College.
