What causes lower extremity tenosynovitis?
The exact cause of most lower extremity tenosynovitis remains unknown. The following are possible causes or conditions that may increase your risk of getting lower extremity tenosynovitis: • Impingement: Incorrect leg or foot movements, or weak flexor muscles may cause the tendon to become trapped. This may also happen in people who overtrain or have a sudden change in leg or foot activity. • Infections: Germs, such as bacteria or fungi, may often cause lower extremity tenosynovitis. The infections may result from wounds, bites, wounds from plant thorns, or intravenous (IV) drug abuse. • Steroid use: Steroid medicines may cause weakening of the tendon and its covering. This increases your risk of irritation and swelling of the tendons in your lower extremity. • Tendon overuse: Lower extremity tenosynovitis may be caused by frequent, repeated movements, such as hopping or jumping. This usually occurs among ballet dancers and athletes, such as gymnasts, ice skaters, swimmers, soccer play
