Extensor Tendon Lacerations
By simply moving your fingers you can see the cord-like structures moving on the back of the hand. These structures are the extensor tendons that assist in straightening your thumb and fingers. Since the extensor tendons are so close to the surface of the skin, they are very prone to injury.
Lacerations to the extensor tendons often occur to those working around sharp objects such as sheet metal, machine parts, or knives. A laceration to one or more of the extensor tendons is a serious injury; a complete cut will leave the individual without the ability to straighten the involved fingers.
Cuts to the back of the hands or fingers should be seen immediately by a physician. If an extensor tendon injury has occurred, surgery is usually required to repair the cut tendon.
Immediately following surgery, your physician will normally prescribe hand therapy. A custom splint is frequently requested to provide protection and restrict mobility, and only very limited and specific movements are allowed for the first several weeks to avoid re-injuring the repair. As healing progresses, a program of specific hand exercises and treatments will help regain range of motion, strength, and function to the hand.
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