

Tenosynovitis is an inflammation of the tendon sheaths of the thumb and fingers of the wrist. Although this condition can affect other parts of the body as well, mainly the ankles and feet. It is simply more commonly seen in the wrist and fingers, however. The muscles of the forearm are responsible for movement of the thumb and fingers. They are attached to the bones of the thumb and fingers by tendons. These tendons are secured and firmly attached to the hand by running under what is called the tendon sheath. This sheath is a band of connective tissue that is located over the tendons and as well as firmly attaching them to the hand, the tendon sheaths contain synovial fluid which provides nourishment and lubrication to allow for smooth movement of the flexor tendons. The two most commonly known forms of Tenosynovitis are Trigger Finger and De Quervain’s Syndrome. Tenosynovitis significantly affects the function of the involved thumb or finger and can cause significant pain.
Tenosynovitis is usually an overuse syndrome, resulting from repetitive motions over a period of time, but this condition can be caused by infections, traumas, or other insults to the body. Some causes and risk factors area:
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Symptoms of Tenosynovitis will usually occur in the wrist and hands, but can occur at other places in the body. The symptoms may include:
The treatment for Tenosynovitis will be a collaborative decision between you and your doctor based on the location and severity of the condition. Non-surgical intervention will usually be successful in treating Tenosynovitis. These include:
When conservative measures fail to adequately reduce pain and improve function, surgical intervention may be necessary. The choice of surgery will involve making a small cut into the tendon sheath, allowing for more room in the area and restoration of a smooth, gliding motion.