RT Book, Section A1 Wootton, R. Joshua A2 Bajwa, Zahid H. A2 Wootton, R. Joshua A2 Warfield, Carol A. SR Print(0) ID 1131931676 T1 Psychological Evaluation of Patients for Spinal Cord Stimulator Implantation T2 Principles and Practice of Pain Medicine, 3e YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 9780071766838 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1131931676 RD 2024/04/19 AB More than 45 years ago, Shealy and colleagues introduced the concept of spinal cord stimulation (SCS) as a means of electrically inhibiting pain that was consonant with Melzack and Wall's gate-control theory of pain.1-3 SCS, or neuromodulation, is now a widely used technique that delivers pulsed electrical signals, principally to the dorsal column of the spinal cord, for indications that include failed back surgery syndrome, traumatic nerve injury, postherpetic neuralgia, complex regional pain syndrome, refractory angina pectoris, peripheral vascular disease, neuropathic pain, and visceral pain.4,5 The technique is minimally invasive and reversible; electrodes can frequently be placed percutaneously under local anesthesia during outpatient surgery; and, unlike more invasive surgical approaches, it does not ablate pain pathways or alter anatomy.6,7 Although the exact mechanism of action is variously described, it is generally held that pain reduction is achieved by inhibiting the conduction of primary neural pathways through the stimulation of large nerve fibers that override the transmission of smaller nerve fibers more directly involved in pain sensation.6,8-10