DRG (Dorsal Root Ganglion)

The DRG (dorsal root ganglion) is located in the posterior (rear) region of the various vertebrae along the spine. It is adjacent to the dorsal nerve root, which exists as part of a pair of nerve roots exiting at each level of the spine. The other half of the nerve root pair is the ventral nerve root, which is responsible for motor function. The dorsal nerve roots are responsible for sensory function, which means they carry neural signals to the central nervous system (spinal cord, brain) from the peripheral nervous system.

About the DRG

The DRG itself is a nodule containing spinal nerve cells. It is in this area that neural messages are initially interpreted and moved on to the central nervous system for response. In addition, the dorsal nerve root:

• Controls pain and temperature sensations
• When compressed, leads to numbness in the body part innervated by the particular nerve root
• Is particularly vulnerable within the foramina, which are open spaces through which nerve roots pass
• Can be affected by traumatic injury, degenerative disc disease, a herniated disc, bulging disc or other spinal abnormality

Treating DRG Compression

Spinal abnormalities, such as a herniated disc or traumatic injury, can cause the DRG to become compressed and interfere with neural activity. More often than not, resulting symptoms such as numbness, tingling, pain, or muscle weakness can be managed through the use of pain medication, exercise, or physical therapy. However, if chronic symptoms persist after weeks or months of conservative treatment, decompression surgery may be recommended. If so, contact Laser Spine Institute for information about minimally invasive, outpatient procedures that may be able to help you rediscover your life without back and neck pain.