Spinal Cord Stimulation (SCS) is an effective treatment of chronic, intractable pain in a variety of neuropathic pain conditions. One challenge associated with SCS consists in the difficulty to target therapy to specific anatomical locations. Dorsal Root Ganglion (DRG) stimulation, by directly modulating activity of primary sensory neurons on a spinally segmented basis, may provide a higher degree of specificity in targeting painful areas. In this analysis we used the pain and paresthesia maps completed by chronic pain patients participating in the ACCURATE™ study to compare the accuracy of targeting paresthesia to painful areas between SCS and DRG stimulation patients.
DRG stimulation can relieve pain by producing a significantly smaller paresthesia footprint and has the potential to target painful areas These findings support the notion that paresthesia coverage with DRG stimulation might not be as crucial as with tonic SCS.