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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).
Surgery is usually recommended for cases of CTS when other treatments have failed to relieve symptoms. Surgery for CTS is known as carpal tunnel decompression or carpal tunnel release surgery, and is performed on an outpatient basis, which means you won't have to stay in hospital overnight. During surgery, the roof of the carpal tunnel (carpal ligament) is cut to reduce pressure on the median nerve in the wrist. A local anaesthetic is used to numb your hand and wrist, but you'll remain awake throughout the operation.