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There are 2 types of carpal tunnel release surgery. The traditional method is the open release, in which the surgeon cuts open the wrist to do the surgery. The other method is endoscopic carpal tunnel release, in which a thin, flexible tube that contains a camera is put into the wrist through a tiny incision (cut).
In either case, here is the general sequence of events in a carpal tunnel release surgery: 1  You will usually be asked to remove your clothing, or at least your shirt, and put on a hospital gown. 2  Typically, local anesthetic is used for this procedure to numb the hand and wrist. In an open release surgery, the surgeon cuts about a 2-inch incision on the wrist. Then he or she uses common surgical instruments to cut the carpal ligament and enlarge the carpal tunnel.