musculoskeletal and connective tissue disorders
Tendinitis and Tenosynovitis
Etiology of Tendinitis and Tenosynovitis
The cause of tendinitis is often unknown. It usually occurs in people who are middle-aged or older as the vascularity of tendons decreases; repetitive microtrauma may contribute. Repeated or extreme trauma (short of rupture), strain, and excessive or unaccustomed exercise probably also contribute. Some fluoroquinolone antibiotics may increase the risk of tendinopathy and tendon rupture. Risk of tendinitis may be increased by certain systemic disorders—most commonly Rheumatoid Arthritis (RA) , 