Tenosynovitis is a condition characterized by the inflammation of the sheath surrounding a tendon, which is a thick cord connecting muscle to bone. This sheath plays a crucial role in protecting the tendon, enabling it to stretch and preventing it from rubbing against the surrounding tissue. When the tendon sheath becomes inflamed, it leads to symptoms such as joint pain, swelling, and stiffness. There are two main forms of tenosynovitis: infectious and noninfectious. It is also commonly referred to as tendon sheath inflammation, typically resulting from tendon injury or overuse. Additionally, tenosynovitis can be caused by an inflammatory joint disorder.
Causes of Tenosynovitis
Tenosynovitis is primarily caused by an injury to the tendon, surrounding muscle, or bone. This injury usually occurs as a result of repetitive activities such as weight lifting, jogging, typing, knitting, carpentry, gardening, or assembly line work. The hands, wrists, and feet are the most commonly affected areas by tenosynovitis. In addition to these activities, certain medical conditions like rheumatoid arthritis, gout, and diabetes can also contribute to inflammation of the tendon sheath.
Recognizing the Symptoms of Tenosynovitis
Tenosynovitis, a condition characterized by inflammation of the tendon sheath, can be identified through various signs. The primary indication is the occurrence of intermittent bouts of pain in the affected region. Initially, discomfort may only manifest when pressure is applied to the tendon. However, as the condition progresses, the area may become painful even during periods of rest. Additional symptoms to look out for include joint stiffness, swelling, tenderness, and redness of the skin.