Selective Nerve Root Block (SNRB) in the Cervical Spine


This injection targets a painful nerve in your cervical spine. It helps your doctor find which nerve is pressed on by a herniated disc, spinal stenosis or some other problem. It may give you pain relief.


To begin, you lie down. You may be given medicine to help you relax. You are numbed with an injection of local anesthetic.

Placing the needle

Next, a needle is inserted through this numbed tissue. The doctor uses a fluoroscope (a video x-ray device) to guide the needle into the space around your inflamed nerve. The doctor may inject contrast dye to make sure the needle is in the right place.


Finally, the doctor injects the medicine. It bathes the target nerve. If your nerve is inflamed, it can relieve pain and swelling.

End of procedure

After your injection, you'll be watched for a short time, then you can go home. You may need to come back to have another procedure to relieve your pain. Your doctor will create a plan that's right for you.