Selective Nerve Root Block (SNRB) in the Lumbar Spine

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

Preparation

To begin, you lie down. You may be given medicine to help you relax. The injection site is numbed.

Placing the needle

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

Injection

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

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.