Spinal Cord Stimulation (SCS) is the stimulation of nerves by tiny electrical pulses. An implanted lead, which is powered by an implanted battery or receiver, is placed against the patient's spinal cord. This system sends electrical pulses that block the pain messages to the patient's brain. SCS implantation is a reversible procedure that does not damage your spinal cord or your nerves; however there are always risks involved with every procedure and surgery. Your doctors will go over all of the risks associated with SCS implantation prior to the trial and permanent surgeries. Typically patients who have a successful SCS implantation experience 50-70% reduction in their pain.