Dorsal column stimulation, also known as spinal cord stimulation, is used in complex cases of back pain that cannot be resolved nonsurgically or with another surgery. In most cases, it is used when leg pain is worse than back pain. The intent of dorsal column stimulation is to use an electrical signal, instead of drugs, to mask pain that cannot be removed any other way.
During this procedure, the patient is awake, and the surgeon delicately places tiny electrodes under the skin in the back. At that point, a tiny electrical current is transmitted through the wires to the desired location in the back. This sensation feels like a tiny tickle, as the electrical current interrupts the pain signal that may be sent to the brain from the damaged nerve. The patient helps instruct the surgeon as to which electrical setting and placement of wires produces the most pain relief. It is important to note that this technique is only used in the most extreme cases of back and leg pain.