Spinal cord stimulation is an aggressive pain management technique that involves the surgical implantation of an electrotherapeutic device onto the spinal cord. In the procedure, a device is implanted that introduces low levels of electrical current to the dorsal portion of the spinal cord to block the sensation of pain. Spinal cord stimulators may be a fully implanted system or a system with an external power source. Spinal cord stimulation is often used to treat neuropathy (neuropathic pain, or nerve pain) from failed back surgery syndrome or radiculopathy. Spinal cord stimulation has shown to be an effective long-term treatment for back pain.