Peripheral nerve stimulation (also called PNS) uses electrical impulses to relieve chronic pain in different areas of the body. Leads are placed in the region of a peripheral nerve dorsal root ganglion (DRG). It is believed that electrical pulses prevent pain signals from being received by the brain.
Spinal cord stimulation (also called SCS) uses electrical impulses to relieve chronic pain of the back, arms and legs. It is believed that electrical pulses prevent pain signals from being received by the brain. SCS candidates include people who suffer from neuropathic pain and for whom conservative treatments have failed.
The Dorsal Root Ganglion is a spinal structure packed with sensory nerves that transmit information to the spinal cord, which then conducts signals to the brain. Dorsal Root Ganglion stimulation is similar to Spinal Cord Stimulation (SCS) but stimulates the Dorsal Root Ganglion for more selective targeting of pain areas that are hard to reach. This kind of stimulation is better for smaller, more specific areas of pain.