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Dorsal Root Ganglion Therapy

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Chronic Pain Assessment

Print out this checklist for discussing therapy options with your pain specialist.

Education Opportunities

Patient Stories

Read stories of patients with chronic pain and how neurostimulation therapy helped them.

DRG Therapy: A Different Approach to Pain Relief

Dorsal root ganglion (DRG) therapy is a new type of neurostimulation therapy designed to manage difficult-to-treat chronic pain in specific areas of the lower body, such as the foot, knee, hip or groin. If you suffer from this kind of pain, DRG therapy may work where other therapies have not—or may have provided only partial relief.

Watch one patient’s experience with DRG therapy

Is DRG therapy right for you?

DRG therapy may be an option if you have:

  • Chronic pain that has lasted six months or more
  • Isolated chronic pain in a lower part of the body, such as the foot, knee, hip or groin, following an injury or surgical procedure
  • Little or no relief from traditional neurostimulation, surgery, pain medications, nerve blocks or other pain management therapies

While neurostimulation therapies such as DRG therapy help most patients receive at least some reduction in pain, not everyone responds in the same way. Complications may include painful stimulation, loss of pain relief and certain surgical risks (e.g., paralysis). Talk to your doctor to see if DRG therapy may be right for you. Be sure to discuss the risks and benefits of neurostimulation with your doctor.

Learn about DRG therapy for chronic pain management. Pain Interrupted, Life Transformed: DRG Therapy for Chronic Pain

Learn more about DRG therapy by downloading our patient brochure, and discover how this therapy option may help you and your doctor manage your pain.

How DRG therapy works

DRG therapy works by stimulating dorsal root ganglia (DRGs). These are structures along the spinal column made up of densely populated sensory nerves, and they act like traffic lights, regulating signals and sensations that travel through nerve fibers along the spinal column to the brain.

Because the spinal column has a number of different DRGs, each of which is associated with different areas of the body, DRG therapy can target the DRG that is associated with the specific area of the body where a patient experiences pain. In this way, DRG therapy has the unique ability to help manage pain in targeted parts of the body where pain occurs, and is especially helpful for patients like you and those who live with isolated chronic pain in the lower parts of the body.

If your doctor decides that DRG therapy is right for you, you will receive a DRG therapy system. This system is made up of parts that are designed to work together to help you manage your pain:

  • Generator: A small device that sends out mild electrical pulses and that contains a battery. This is implanted in your body.
  • Leads: Thin insulated wires that carry the electrical pulses from the generator to your dorsal root ganglia. These are placed in your body in the area of the DRG.
  • Patient controller: A handheld “remote control” that allows you to adjust the strength and location of stimulation or even turn stimulation off.

Discover what receiving neurostimulation therapy can involve, and learn about receiving an implanted system and recovering after the procedure.

Trial system

One of the benefits of DRG therapy is that you can be fitted with a temporary device that works like an implanted system but can be removed. This allows you and your doctor to determine if DRG therapy is effective for your pain before undergoing an implant. Learn more about trying a neurostimulation system.

DRG therapy from St. Jude Medical

St. Jude Medical offers the first and only neurostimulation device designed for dorsal root ganglion (DRG) therapy and targeted relief of certain difficult-to-treat chronic pain.

Learn more about the Axium™ Neurostimulator System.


1. Harden, R. N., Oaklander, A. L., Burton, A. W., Perez, R. S., Richardson, K., Swan, M., … Bruehl, S. (2013). CRPS practical diagnostic and treatment guidelines. Pain Medicine, 14(2), 180-229. 10.1111/pme.12033
2. Bruehl, S. ( 2015, July). Complex regional pain syndrome. BMJ, 351, h2730.
3. Levy, R., & Deer, T. (2015, December). A prospective, randomized, multi-center, controlled clinical trial to assess the safety and efficacy of the spinal modulation Axium™ Neurostimulator System in the treatment of chronic pain. Presented at the meeting of the North American Neuromodulation Society (NANS), Las Vegas, NV.