Intrathecal Drug Delivery/pain pump delivers pain medication directly to the fluid around the spinal cord, providing pain relief with reduced medication compared to the amount required when taken orally. This may lead to fewer or more tolerable drug side effects compared to oral medications. The system consists of a pump and catheter that are surgically placed under the skin. The pump is a round device that stores and delivers pain medication. The catheter is connected to the pump and inserted into your spine to allow for the delivery of the medication. Prior to an implant of a pain pump, a patient would be required to perform a trial to determine candidacy.