A selective nerve root block is a diagnostic test performed to determine if a specific spinal nerve is the source of pain. A SNRB is performed to diagnose cervical (neck) or lumbar (low back) radiculopathy (irritation and inflammation of a nerve root).
Using fluoroscopic guidance, steroid medication (a strong anti-inflammatory) is injected at a specific nerve root If the injection reduces symptoms, the pain source is identified. The test takes 15 to 30-minutes per spinal level.
Below is a short list of common instructions. After you are seen at Colorado Comprehensive Spine Institute (CCSI), our doctor will provide a more specific list for you.
Some patients should not undergo a SNRB. Restrictions include:
Selective nerve root blocks are important to help identify the source of pain. Although the procedure may be uncomfortable, our staff is dedicated to making you as comfortable as possible.