Dorsal Root Ganglion (DRG) stimulation is a form of neuromodulation designed to target pain signals associated with specific spinal nerve roots. It may be considered for selected patients with chronic, focal neuropathic pain that has not improved enough with more conservative treatment.
The dorsal root ganglion is a cluster of sensory nerve-cell bodies located near each spinal nerve root. By positioning stimulation leads near one or more selected DRGs, therapy can be directed toward a more specific pain distribution than broader spinal cord stimulation in some patients.
At Regenerative Spine and Pain Specialists, Dr. Zwade Marshall and Dr. Jennifer Xiong evaluate your pain pattern, neurologic findings, previous treatment, imaging, and overall health to determine whether DRG stimulation, spinal cord stimulation, or another treatment may be appropriate.
Request an Appointment or call (404) 618-0995 to schedule an evaluation at our Fayetteville, Marietta, or Atlanta office.
What Is Dorsal Root Ganglion (DRG) Stimulation?
Dorsal root ganglion stimulation is an implantable neuromodulation therapy that delivers mild electrical stimulation near selected dorsal root ganglia, which are sensory nerve structures located just outside the spinal cord along the spinal nerve roots.
The goal is to change how pain signals are processed before they are perceived as pain. Because the leads can be positioned near specific DRGs, the therapy may be useful for selected focal or regional neuropathic pain patterns that are difficult to cover precisely with broader forms of spinal cord stimulation.
DRG stimulation does not repair injured nerves or cure the underlying condition. It is intended to help manage symptoms and improve function in appropriately selected patients.
Treatment generally begins with a temporary trial. If the trial provides meaningful benefit and the patient remains an appropriate candidate, a permanent system may then be implanted.
Who May Be a Candidate for DRG Stimulation?
DRG stimulation may be considered for selected patients with chronic focal neuropathic pain when other treatments have not provided enough relief or functional improvement.
You may be evaluated for DRG stimulation if you have:
- Chronic pain with neuropathic features such as burning, electric, shooting, hypersensitive, or nerve-related pain
- A relatively focal pain distribution that may correspond with one or more specific nerve-root levels
- Complex regional pain syndrome (CRPS) or causalgia in an appropriate clinical setting
- Persistent focal neuropathic pain after an injury or surgery in selected cases
- Pain that has not improved enough with medications, rehabilitation, injections, or other appropriate conservative treatment
- The ability to participate in a stimulation trial and ongoing device follow-up
DRG stimulation is not appropriate for every type of chronic pain. Generalized pain, pain without a clear neuropathic component, untreated infection, certain medical conditions, or other factors may make another treatment more appropriate.
Your provider will review your diagnosis, pain pattern, neurologic findings, prior treatment, medications, medical history, and expectations before recommending a trial.
What Conditions Can DRG Stimulation Help Manage?
DRG stimulation is generally considered for selected chronic neuropathic pain conditions rather than for every type of back, leg, or joint pain.
Complex Regional Pain Syndrome (CRPS)
DRG stimulation may be considered for selected patients with CRPS when pain remains difficult to manage despite appropriate conservative and interventional care.
Causalgia or Nerve-Injury Pain
Patients with chronic neuropathic pain after a documented nerve injury may be evaluated when the pain distribution is focal enough to target with DRG stimulation.
Selected Focal Neuropathic Pain
Some patients have persistent neuropathic pain concentrated in a specific area such as the foot, ankle, knee, groin, or another lower-extremity region. Whether DRG stimulation is appropriate depends on the diagnosis, pain distribution, and the physician’s evaluation.
Persistent Pain After Surgery or Trauma
In selected cases, focal neuropathic pain that continues after surgery or trauma may be evaluated for neuromodulation when other appropriate treatments have not provided enough benefit.
DRG stimulation is not generally chosen simply because a patient has nonspecific back pain or leg pain. The underlying diagnosis and pain mechanism matter when deciding whether neuromodulation is appropriate.
DRG Stimulation vs. Spinal Cord Stimulation
DRG stimulation and spinal cord stimulation (SCS) are both forms of neuromodulation, but they target different structures and may be chosen for different pain patterns.
DRG Stimulation
DRG stimulation places leads near selected dorsal root ganglia associated with specific sensory nerve roots. This can allow more focused targeting of a localized pain region in selected patients.
Spinal Cord Stimulation
SCS places leads in the epidural space over the spinal cord and may be useful when the painful area is broader or when the clinical condition is better suited to spinal cord stimulation.
Both therapies usually include a temporary trial before permanent implantation. Neither approach is automatically better for every patient. The choice depends on the diagnosis, pain distribution, prior treatment, anatomy, device considerations, and the response to trial stimulation.
How Does DRG Stimulation Work?
DRG stimulation uses thin electrical leads positioned near selected dorsal root ganglia under fluoroscopic image guidance.
The leads deliver controlled electrical pulses that modulate sensory signaling associated with the painful region. The exact stimulation settings are programmed for the individual patient and may be adjusted over time.
Treatment typically occurs in two stages:
Trial Phase
Temporary leads are positioned near the intended DRG targets and connected to an external stimulator for a limited trial period. The patient tracks changes in pain, activity, sleep, medication use, and function as directed by the care team.
Permanent Implant
If the trial provides meaningful benefit and the patient remains an appropriate candidate, permanent leads and an implanted pulse generator may be placed. The system is then programmed and adjusted during follow-up visits.
A successful trial can help predict whether permanent therapy may be worthwhile, but it does not guarantee the same degree of long-term benefit.
What Happens During the DRG Stimulation Trial and Implant?
DRG lead placement is performed with fluoroscopic guidance and an anesthesia plan selected for the procedure and your medical needs.
During the trial, the physician advances one or more leads through the epidural space toward the selected dorsal root ganglia. Lead position is confirmed with imaging, and stimulation is tested and programmed.
Trial leads are connected to an external generator and remain in place for the prescribed trial period. Patients are given detailed instructions regarding activity, wound care, device use, and how to record the trial response.
If permanent implantation is pursued, permanent leads are positioned and connected to an implanted pulse generator placed beneath the skin. The exact location and system configuration depend on the device, anatomy, and treatment plan.
What to Expect Before, During, and After DRG Stimulation
Before the Procedure
Your physician will confirm the diagnosis, pain distribution, previous treatment, and whether neuromodulation is appropriate. Depending on clinical circumstances and insurance requirements, the evaluation may also include additional testing or psychological assessment before a trial.
Tell your care team if you:
- Take blood-thinning or antiplatelet medications
- Have an active infection, fever, or illness
- Have diabetes or another condition that may affect healing or infection risk
- Have allergies to medications, adhesives, or implanted materials
- Have a pacemaker, defibrillator, or another implanted electronic device
- Are pregnant or may be pregnant
- Have had prior spine surgery or implanted neurostimulation devices
- Have had recent changes in your health
Do not stop prescription medications unless the prescribing or treating clinician specifically instructs you to do so.
During the Trial
Temporary leads are placed under image guidance and connected to an external stimulator. The system is programmed, and you are given instructions for the trial period.
After Permanent Implantation
You will receive instructions about incision care, lifting, bending, activity restrictions, driving, device use, and follow-up. Programming is often refined over time based on your response.
Contact the office promptly if you develop fever, increasing redness or drainage, new weakness or numbness, severe headache, loss of bladder or bowel control, rapidly worsening pain, or another concerning symptom.
Risks, Side Effects, and Safety Considerations
DRG stimulation is minimally invasive compared with open spine surgery, but both the trial and permanent implant involve procedures near the spine and carry potential risks.
Possible complications include:
- Infection
- Bleeding or epidural hematoma
- Dural puncture or spinal headache
- Nerve irritation or nerve injury
- New numbness, weakness, or other neurologic symptoms
- Lead migration, fracture, or malfunction
- Device or generator malfunction
- Pain or discomfort at the lead or generator site
- Unwanted or uncomfortable stimulation
- Loss of effectiveness over time
- Allergic or medication-related reactions
- Need for reprogramming, revision, replacement, or device removal
Serious neurologic complications are uncommon but can be significant. Your individual risk depends on anatomy, medical conditions, medications, prior spine procedures, device factors, and the planned lead locations.
MRI compatibility and restrictions depend on the specific implanted system and the scan being considered. Patients with a permanent device should follow the manufacturer and treating team’s device-specific imaging instructions.
How Soon Can DRG Stimulation Start Helping?
The trial is designed to give the patient and physician an opportunity to evaluate whether DRG stimulation meaningfully improves symptoms and function before committing to a permanent implant.
Some patients notice a change soon after stimulation begins, while others require programming adjustments during the trial to identify useful settings.
After permanent implantation, additional programming visits may be needed to optimize coverage and comfort. The response can change over time as symptoms, activity, and device settings change.
DRG stimulation does not guarantee a specific percentage of pain relief or functional improvement.
How Long Can the Benefits of DRG Stimulation Last?
DRG stimulation is intended as an ongoing therapy for selected chronic neuropathic pain conditions, but the duration and degree of benefit vary from person to person.
Long-term effectiveness can be influenced by:
- The underlying diagnosis and pain mechanism
- Lead position and device function
- Changes in the patient’s pain condition
- Programming settings
- Activity level and medical history
- Development of new pain from another source
Some patients continue to benefit with periodic programming adjustments. Others may experience reduced benefit, device-related issues, or changes in the pain condition that require reassessment.
Battery longevity, charging requirements, and replacement needs depend on the specific implanted system.
Can DRG Stimulation Be Adjusted, Revised, or Removed?
Yes. One advantage of implantable neuromodulation is that stimulation settings can be adjusted without another procedure.
Programming changes may be made when pain patterns change, coverage is incomplete, stimulation is uncomfortable, or the response decreases.
A procedure may be needed if a lead moves or breaks, the generator malfunctions, a battery requires replacement, infection develops, or another device-related issue occurs.
The system can also be removed when clinically appropriate. Device revision or removal is still a surgical procedure and carries its own risks.
If you have an implanted DRG system, keep your device information available and tell other healthcare professionals about the implant before MRI, surgery, certain procedures, or treatment involving electrical or electromagnetic equipment.
What Happens If DRG Stimulation Does Not Work?
If the trial does not provide meaningful benefit, the temporary leads are removed and a permanent system is generally not implanted.
If benefit decreases after permanent implantation, your provider may first determine whether the issue is related to programming, lead position, device function, or a change in the underlying pain condition.
Possible next steps can include:
- Reprogramming the DRG system
- Device interrogation or imaging when appropriate
- Lead or generator revision in selected situations
- Reassessment of the diagnosis and pain generator
- Considering spinal cord stimulation or another neuromodulation strategy when appropriate
- Physical therapy, medications, injections, or other interventional treatment
- Device removal when clinically appropriate
The goal is to reassess why the therapy is not meeting treatment goals rather than assuming that more stimulation is automatically the answer.
Why Choose Regenerative Spine and Pain Specialists?
Regenerative Spine and Pain Specialists provides comprehensive interventional pain management for patients with complex spine and neuropathic pain conditions.
Our physicians, Dr. Zwade Marshall and Dr. Jennifer Xiong, are Harvard-trained, double-board certified anesthesiologists and interventional pain management specialists.
Our approach to DRG stimulation includes:
- Careful evaluation of the diagnosis and pain distribution before recommending neuromodulation
- A temporary stimulation trial before permanent implantation
- Fluoroscopic image guidance for lead placement
- Individualized device programming and follow-up
- Comparison of DRG stimulation with spinal cord stimulation and other treatment options
- Monitoring for device-related issues and changes in the pain condition
- Care focused on function, quality of life, and realistic treatment goals rather than guaranteed outcomes
DRG Stimulation Care in Fayetteville, Marietta, and Atlanta
Regenerative Spine and Pain Specialists offers evaluation for dorsal root ganglion stimulation through our offices in Fayetteville, Marietta, and Atlanta.
Fayetteville
Our Fayetteville pain management clinic is located at:
874 West Lanier Ave., Suite 250
Fayetteville, GA 30214
Marietta
Our Marietta pain management clinic is located at:
3939 Roswell Road, Suite 240
Marietta, GA 30062
Atlanta
Our Atlanta pain management clinic is located in Buckhead at:
371 E Paces Ferry Rd NE, Suite 802
Atlanta, GA 30305
Evaluation, trial procedures, implantation, programming, and follow-up may occur at different locations depending on the treatment plan. Our team will confirm the appropriate location when scheduling.
For questions about DRG stimulation, call (404) 618-0995 or contact Regenerative Spine and Pain Specialists.
Frequently Asked Questions About DRG Stimulation
DRG stimulation is an implantable neuromodulation therapy that places stimulation leads near selected dorsal root ganglia to help manage certain focal neuropathic pain conditions.
DRG stimulation may be considered for selected chronic focal neuropathic pain conditions, including complex regional pain syndrome or causalgia in appropriate patients. Other focal nerve-related pain patterns require individualized evaluation.
DRG stimulation targets selected dorsal root ganglia associated with specific nerve roots, while spinal cord stimulation places leads over the spinal cord and may provide broader coverage. The better option depends on the diagnosis and pain distribution.
Yes. DRG stimulation is generally tested with temporary leads before permanent implantation so the patient and physician can evaluate whether the therapy provides meaningful benefit.
The trial lasts for a limited period determined by the treating team. You receive instructions on how to care for the temporary leads and how to track pain, function, and other treatment goals during the trial.
Lead placement involves a procedure near the spine, so temporary soreness or discomfort can occur. Anesthesia and pain-control measures are selected for the procedure and the patient’s medical needs.
If the trial provides meaningful benefit and you remain an appropriate candidate, your physician may discuss permanent implantation of DRG leads and an implanted pulse generator.
Potential risks include infection, bleeding, dural puncture, nerve injury, new neurologic symptoms, lead migration or fracture, device malfunction, implant-site pain, unwanted stimulation, loss of effectiveness, and the need for revision or removal.
MRI eligibility depends on the specific implanted system, lead configuration, body area being scanned, and device-specific conditions. Always tell the imaging team about the implant and follow the manufacturer’s and treating team’s instructions.
Yes. A DRG stimulation system can be removed when clinically appropriate, although removal is still a procedure and carries surgical risks.
If the trial does not provide meaningful benefit, the temporary leads are removed and a permanent system is generally not implanted. Your physician can reassess other treatment options.
Regenerative Spine and Pain Specialists offers DRG stimulation evaluation through its Fayetteville, Marietta, and Atlanta, Georgia locations. The scheduling team can confirm where trial, implantation, programming, and follow-up services are performed.
Schedule an Appointment for DRG Stimulation Evaluation
Chronic focal neuropathic pain can be difficult to manage when medications, rehabilitation, injections, and other treatments have not provided enough improvement. For selected patients, DRG stimulation may offer a more targeted neuromodulation option.
Dr. Zwade Marshall and Dr. Jennifer Xiong can review your diagnosis, pain distribution, previous treatment, and overall health to determine whether a DRG stimulation trial, spinal cord stimulation, or another treatment may fit your condition.
Request an Appointment online or call (404) 618-0995 to schedule with Regenerative Spine and Pain Specialists.
Patients can also review our financial options or contact our office with questions before scheduling.