What is Tenosynovitis?
Tenosynovitis is inflammation of the lining of the sheath that surrounds a tendon (the cord that joins muscle to bone).
The synovium is a lining of the protective sheath that covers tendons. Tenosynovitis is inflammation of this sheath. The cause of the inflammation may be unknown, or it may result from:
- Diseases that cause inflammation
The wrists, hands, and feet are commonly affected, because the tendons are long across those joints. But, the condition may occur with any tendon sheath.
An infected cut to the hands or wrists that causes tenosynovitis may be an emergency requiring surgery.
Symptoms may include any of the following:
- Difficulty moving a joint
- Joint swelling in the affected area
- Pain and tenderness around a joint, especially in the hand, wrist, foot, or ankle
- Pain when moving a joint
- Redness along the length of the tendon
Fever, swelling, and redness may indicate an infection, especially if a puncture or cut caused these symptoms.