Dorsal Root Ganglion


Dorsal Root Ganglion


  • A dorsal root ganglion (DRG) is a type of neurostimulation therapy that can help target chronic pain, particularly in areas where traditional spinal cord stimulation may not be as effective. These areas include the hand, chest, abdomen, foot, knee, or groin.
  • The DRG is a bundle of sensory nerve cell bodies within the epidural space in the spine that plays a key role in the development and management of chronic neuropathic pain. Because each nerve root sends sensory messages to the DRG, stimulating it can permit focused therapy to a specific area.
  • The DRG stimulator is composed of electrical leads, implantable pulse generator, and an optional extension. The electrical leads are threaded through the epidural space and into the intervertebral foramen where the DRG is located. Each lead has four electrode contacts that are placed over the DRG. The pulse generator is implanted in either the upper buttock/low back or, if using an extension, into the abdominal wall. The patient has a small hand held controller to switch between stimulation settings.


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