Spinal Cord Stimulation (SCS) uses electrodes implanted into the epidural space, the space directly outside the membrane that encloses the spine, to generate electrical charges on the spinal cord.

The spinal cord is the main nerve in the spinal column that transports signals from nerves to the brain; it is responsible for conducting pain signals. Electrical stimulation of the spinal cord can relieve the sensation of pain that is transferred through the spinal cord.

Treatment involves first implanting electrodes in the epidural space and an electrical pulse generator into the lower abdomen. Wires are then connected between the electrodes and generator, the latter controlled remotely. Electrical pulses are employed that feel like a gentle buzzing in the area of the spine experiencing pain, ultimately alleviating the discomfort.

Spinal cord stimulation is employed to treat such conditions as failed back syndrome, reflex sympathetic dystrophy, causalgia and ischemia.