Tendinitis and tenosynovitis in the wrist and hand are commonly seen as overuse injuries. The most common type is known as de Quervain's tenosynovitis, which may occur in athletes or workers. Excessive and repetitive wrist movements may result in tenderness, swelling and crepitus. Pain is experienced particularly over the area just proximal to the base of the thumb, when the wrist is moved into ulnar deviation (toward the little finger side). Golfers, tennis players, carpenters and other workers are prone to develop this problem. A physician must make the diagnosis, and x-rays and other tests may be needed to exclude other disorders. Other tendons in the hand and wrist may also develop inflammation. Recurrent tendon or tendon sheath inflammation can lead to narrowing of the tunnel through which a tendon glides, resulting in "stenosing tenosynovitis". 

Treatment:
Careful clinical evaluation is necessary, since pain in these areas may be an early sign of impending tendon rupture. Standard treatment methods include anti-inflammatory drugs, splints, and sometimes a local steroid injection. Correction of any pre-disposing factors, such as poorly designed tools, faulty equipment or incorrect techniques must also be addressed. Rarely, surgical treatment is needed. Low dose Sonocur treatment can be effective in these disorders, and is applied at a low energy level.