What is tenosynovitis? It actually has these symptoms

Tenosynovitis can be caused by injury, overuse (especially in the hands and fingers), osteoarthritis, some immune diseases, and even infection. Some occupations that require long-term repetitive strain on joints, such as typists, instrumentalists, cargo handlers, or industries that require long-term computer operation, can cause or aggravate this disease.

1. Causes

The tendon sheath is a double-layer, sleeve-like, closed synovial tube that is wrapped around the tendon. It is a synovial sheath that protects the tendon. When the hand is fixed in a certain position and subjected to repetitive and excessive activities, friction often occurs between the tendon and the tendon sheath, resulting in edema and fibrosis, causing narrowing of the inner cavity. Because the path through which the tendon moves in the tendon sheath is narrow, pain and movement disorders occur. This is tenosynovitis, also known as stenosing tenosynovitis. If left untreated, it may develop into permanent disability.

Tenosynovitis can be caused by injury, overuse (especially in the hands and fingers), osteoarthritis, some immune diseases, and even infection. Some occupations that require long-term repetitive strain on joints, such as typists, instrumentalists, cargo handlers, or industries that require long-term computer operation, can cause or aggravate this disease. Common affected areas include the wrists, fingers, shoulders, etc. Women and diabetics are more likely to develop this disease. Patients will feel joint pain and morning stiffness. Usually the feeling of morning joint stiffness is most obvious after getting up, and the symptoms will not be significantly relieved with frequent activities. The affected joints are swollen and even snap, and joint movement is impaired.

2. Symptoms

1. Local swelling: The tendon affected by tenosynovitis will have cord-like bulges of varying degrees. Pain may also occur, but most people cannot clearly point out the location of the pain, only that the joints are "awkward", and there is a feeling of soreness or lack of strength in the joints during exercise. Sometimes people with tenosynovitis feel a band-like pain.

2. Functional impairment: Tenosynovitis occurring in the wrist of the upper limb often affects the players' power, and sometimes the movements will be deformed when hitting the ball. Tenosynovitis occurring in the ankle will cause pain during exercise and affect the movements. The tendon sheath is a sheath-like structure that surrounds the tendon. The outer layer is fibrous tissue, which is attached to the bones and adjacent tissues and plays a role in fixing and protecting the tendons. The inner layer is the synovium, which nourishes the tendon and secretes synovial fluid to facilitate the sliding of the tendon.