What is a nerve root injection?
A nerve root injection is done primarily to determine if a specific nerve root is the source of back, buttock and leg pain. The procedure is similar to an epidural injection, where the lower spinal canal is injected. Selective nerve root injections of cortisone and anesthetic can help diagnose as well as treat nerve root inflammation that causes sciatica, a numbness or pain in the leg. This very precise injection can help alleviate leg pain coming from nerve roots in the lower back.