Endoscopic Carpal Tunnel Release gets rid of most of the pain and numbness in the vast majority of patients, but not in everyone. If the numbness was constant before surgery, then there was a greater amount of nerve dysfunction before surgery. If the numbness was constant before surgery, then it can take 1.5 years for feeling to return, if it returns at all. That’s why it’s best to have the nerve released before the symptoms are constant.
The symptoms of carpal tunnel syndrome come from irritation of the median nerve. Remember that the median nerve supplies sensation to the thumb, index finger, middle finger and half of the ring finger, as well as motor control to the thick muscles at the base of the thumb.