![]() ![]() Spinal cord stimulators have reported success rates ranging from 20-70%. SCS is expected to reduce pain by blocking the conduction of primary nerve pathways. The theoretical basis of the efficacy of SCS is based on Melzack and Wall’s Gate Control Theory that proposes that stimulation of large nerve fibers overrides the transmission of small nerve fibers that transmit pain. ![]() Spinal cord stimulation (SCS) with implantable or externalized systems has been available since the 1960’s. Here, we present a brief overview of recent studies examining these factors in their relationship with SCS outcomes. In addition to psychological assessment, quantitative sensory testing (QST) procedures offer another valuable resource in forecasting who may benefit most from SCS and may also shed light on mechanisms underlying the individual characteristics promoting the effectiveness of such procedures. Psychological characteristics play an important role in shaping individual differences in the pain experience and may influence responses to SCS, as well as a variety of other pain treatments. While research on SCS is in its infancy, it is clear that substantial variation exists in the degree of benefit obtained from SCS, and the procedure does not come without risks thus focused patient selection is becoming very important. Potential indications for SCS include: complex regional pain syndrome (CRPS), postherpetic neuralgia, traumatic nerve injury, failed back surgery syndrome, refractory angina pectoris, peripheral vascular disease, neuropathic pain, and visceral pain. Spinal Cord Stimulation (SCS) is becoming a widely used treatment for a number of pain conditions, and it is frequently considered as a pain management option when conservative or less invasive techniques have proven ineffective. ![]()
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