Extensor Tendon Injuries (Hand)
An extensor tendon injury occurs when the tendon is torn, cut or otherwise detached. The extensor tendons attach to the back of your fingers and thumbs. They allow your fingers and thumbs to straighten and perform fine coordinated movements. Extensor tendon injuries can result from trauma, burns, or arthritis.
Extensor tendon injuries cause loss of movement, pain, and swelling. Some extensor tendon injuries are treated with splinting and hand therapy. Surgery may be necessary in cases of tendon separation, fracture, or malalignment.
Your extensor tendons begin in your forearm and continue to the back side of your fingers and thumb. As the extensor tendons reach your fingers, they become flat and thin. They are located just underneath the skin. The extensor tendons are attached to your phalanges via a complex system. The extensor tendons allow your fingers and thumbs to straighten and perform fine coordinated movements.
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