Trial Procedure After local anesthetic is administered, a catheter is inserted through a needle or small incision into the intrathecal space. This catheter is connected to a temporary pump. It will be used for several days to determine if the system will help the patient. If pain decreases during the trial period, a permanent system may be implanted.
Permanent Implantation The second procedure is usually performed while the patient is under general anesthesia. The temporary catheter is removed and, through a needle or incision, a permanent catheter is implanted.