Inflammation of the thin inner lining of the sheath that surrounds a tendon. Tenosynovitis is usually caused by excessive friction due to overuse; it is often brought on by working in an awkward position to do a job that involves repetitive movements. A reare cause is bacterial infection. Tendons in the hand and wrist are most commonly affected.
- Swelling over the tendon
- Occasionally crepitus
- Persistent recurrent tenosynovitis may lead to restricted movement as a result of the formation of adhesions (fibrous bands) between the tendon and its sheath.
If infection is the cause, antibiotic drugs. Otherwise, treatment is usually NSAIDS, corticosteroid drug injection around the tendon. The hand and wrist may need to be immobilised in a splint for a few weeks. If the condition does not improve, surgery may be required to release adhesions.