Trigger thumb of stenosing tenosynovitis refers to the scientific name is inflammatory. Tendon sheath is a layer around the tendon sheath, the equivalent of a layer of clothes. It protects muscle, tendons to avoid wear. When the tendon of the flexor pollicis longus flexor term first metacarpal bone when worn by the mast, local sheath of tendons and edema, hypertrophy occurs, surface rough and sheath are narrower. When a tendon sheath in the adoption of this paragraph will be hampered, not active straight thumb, thumbs have difficulty interphalangeal flexion or extension, needs outside help.
Trigger finger is caused by congenital malformations in children, such as opening narrow hypertrophy of first metacarpal bone or tendon sheath. Most was found in a few weeks or months after birth. Surgical treatment should be timely. Otherwise, affect the joint function.
Treatment is: a small incision, narrow part of longitudinal splitting of tendon sheath.
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