What a Medial Branch Block Evaluates
Medial branch blocks are used to evaluate pain believed to be coming from the facet joints in the neck or low back.
Common Causes of Facet Pain
Arthritis of the facet joints, degenerative changes of the spine, and pain following prior spine surgery.
Purpose of the Injection
The goal is diagnostic—to temporarily numb the medial branch nerves that supply the facet joints and determine whether they are the source of pain. If the injection temporarily relieves your pain, your doctor may recommend radiofrequency ablation for a longer-lasting result.
When Radiofrequency Ablation Is Used
Radiofrequency ablation is often recommended after a successful medial branch block confirms that facet joints are the source of pain.
Common Indications
Chronic neck or low back pain caused by facet joint arthritis or degenerative changes of the spine.
Goal of Treatment
Interrupt pain signals from the targeted medial branch nerves to provide longer-lasting pain relief and improved function.
What to Expect
Radiofrequency ablation is performed as an outpatient procedure in our pain suite.
During the Procedure
You will be positioned comfortably on your stomach. Using X-ray guidance, specialized needles are placed near the targeted medial branch nerves. Controlled heat is then applied to burn the pain fibers and relieve your pain.
After the Procedure
Patients go home the same day after a short recovery period. Soreness at the treatment site is common for several days, with pain relief developing gradually.
Doctors Who Perform This Procedure
Eric Kano Mayer, MD
Pain Management
Kaleb Shaw, MD
Pain Management
Questions Before or After Your Injection?
Our nursing team is available during business hours to answer questions about medications, activity restrictions, or recovery.
Request a Call‑Back
For emergencies, call 911 or go to the nearest emergency room.
Coming in for Your Procedure?
Please arrive 60 minutes early, unless otherwise directed by your surgeon.