DORSAL ROOT GANGLION STIMULATOR

DORSAL ROOT GANGLION STIMULATOR

DORSAL ROOT GANGLION STIMULATOR

Dorsal Root Ganglion Stimulation refers to electrodes placed over the Dorsal Root Ganglion of the Spinal Nerve. The Dorsal Root Ganglion lies at the back side of each spinal nerve. Pain signals travel from the arms and legs to the brain, on the way they must pass through the dorsal root ganglion.

The idea of Dorsal Root Ganglion (DRG) stimulation is nearly identical to traditional Spinal Cord Stimulation (SCS), with one very important difference – rather than placing the leads in a general region of the spinal cord, DRG stimulation targets the specific regions of the cord that are transmitting the pain and shuts down those painful signals directly by placing the leads DIRECTLY OVER THE DRG’s. The FDA clinical trial (ACCURATE Study) showed that electrically stimulating the ganglion offers patients better and more targeted pain relief from Complex Regional Pain Syndrome (CRPS).

Dorsal Root Ganglion Stimulator

Complex Regional Pain Syndrome DRG Stimulator Placment

While the utility of spinal cord stimulation (SCS) is unquestioned, it does not help everyone every time and for some people, the relief tends to diminish over time. Among other things, there are number of deficiencies with the therapy that have kept it from becoming the gold-standard for certain types of pain: as many as 40% of implanted patients report unsatisfactory pain relief,[11] positional-related changes in the perception of neurostimulation,i above decreased pain relief over time despite appropriate coverage,[12].[13] the inability to consistently capture certain body parts like the foot and pelvic region[14],[15], and paresthesias in unwanted areas of the body. These shortcomings led clinicians to search for ways to improve SCS and close the gap on creating the ideal treatment modality for pain – out of this need dorsal root ganglion (DRG) stimulation was born. With DRG stimulation – there are no paresthesia, lower energy needs so recharging is less necessary, and there are no changes in coverage when changing positions.

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