Procedure Description
A Dorsal Root Ganglion (DRG) stimulator is an advanced neuromodulation system used to manage chronic nerve pain by delivering precise electrical stimulation to the dorsal root ganglion—a cluster of sensory nerves located just outside the spinal cord. DRG stimulation offers more targeted pain control than traditional spinal cord stimulation (SCS), especially for pain isolated to specific areas such as the foot, groin, knee, or pelvic region.
The treatment involves two phases:
A trial phase, where temporary leads are placed to assess effectiveness.
A permanent implant, if the trial successfully reduces pain.
What It Treats
DRG stimulation is FDA-approved and highly effective for treating:
Complex Regional Pain Syndrome (CRPS) (especially lower limbs)
Focal neuropathic pain in the foot, groin, knee, or pelvis
Post-surgical nerve pain (e.g., hernia repair, knee surgery)
Post-traumatic nerve pain
Chronic regional pain not responding to medications, injections, or physical therapy
It is ideal for patients whose pain is well-localized and not widespread, and who have not found relief with conventional treatments.
How It Is Performed
Phase 1: Trial Procedure
Performed in an outpatient setting under local anesthesia and light sedation.
One or more thin leads (electrodes) are placed near the DRG through a small needle, using fluoroscopic (X-ray) guidance.
The leads are connected to an external stimulator worn on a belt for 5–7 days.
Patients use a handheld device to adjust stimulation and report pain levels daily.
If pain relief exceeds 50%, the patient may be approved for permanent implantation.
Phase 2: Surgical Implantation
Performed in a surgical suite under sedation or general anesthesia.
Leads are permanently placed near the targeted DRG locations through small incisions.
A pulse generator (battery) is implanted under the skin, typically in the upper buttock or lower back.
The device is programmed and can be adjusted externally using a remote control.
The implant is completely internal and wireless and allows patients to control pain non-pharmacologically.
Pre-Procedure Instructions
Do not eat or drink for 6–8 hours prior to either procedure if sedation is used.
Review all medications with your provider, especially blood thinners, diabetes medications, or immunosuppressants.
Inform your provider if you:
Are pregnant or breastfeeding
Have an active infection
Have a history of allergies to adhesives, surgical materials, or anesthesia
Arrange for a driver on the day of both procedures.
You may be asked to complete a pain diary or psychological evaluation prior to the trial.
What to Expect After the Procedure
After the Trial
You may experience immediate reduction in nerve pain.
The temporary leads are removed in the office at the end of the trial.
You’ll report how much pain relief, function improvement, and medication reduction occurred during the trial.
If successful, you and your provider will schedule permanent implantation.
After Permanent Implantation
Expect mild post-surgical soreness at the implant site for a few days.
Avoid bending, twisting, or lifting heavy objects for several weeks to allow the leads to stabilize.
Your stimulator will be programmed in follow-up visits, and settings can be adjusted wirelessly.
Most patients report significant improvement in pain, function, and reduced medication use.
Call your provider immediately if you experience:
Signs of infection, such as redness, swelling, fever, or drainage
Worsening pain or weakness
Device malfunction, such as loss of stimulation or battery concerns
Targeted Relief for Focal Neuropathic Pain
At Parkview Spine & Pain, we specialize in advanced neuromodulation techniques like DRG stimulation to help patients with complex regional and post-surgical nerve pain achieve lasting relief. If you’ve exhausted other treatments, this cutting-edge technology may be the solution.
👉 Schedule a consultation today to find out if a DRG stimulator trial is right for you.