This is performed for either overactive bladder or urinary retention with the inability to void. You will be lying on your stomach and , using x-ray guidance , the surgeon finds the correct area where the nerves that control the bladder are found on the lower back area. One wire is placed into that area and tunneled under the skin. It is then attached to a battery pack that is implanted under the skin as well. Incisions are closed with stitches that will dissolve. This may also be done in a staged fashion with stage 1 being implantation of the wire that is left externalized for a trial period of approximately 2weeks followed by a 2nd stage that is either removal of the lead or implantation of the battery pack, dependent upon the outcome of the trial. After effects may include pain at the incision sites.