Sacroiliac Lateral Branch Blocks & RFA
This outpatient procedure is designed to reduce or relieve the pain of trigger points. These small, tender knots can form in muscles or in the fascia (the soft, stretchy connective tissue that surrounds muscles and organs). The trigger point injection procedure takes only a few minutes to complete.
Schedule A Pain Management Consultation
If you suffer from chronic Sacroiliac (SI) joint pain that returns after standard injections, targeting the nerve supply may be the key to lasting relief. Our specialists perform image-guided Sacroiliac Lateral Branch Blocks to identify the exact nerves transmitting your pain, followed by Radiofrequency Ablation (RFA) to quiet those nerves and provide profound, long-term comfort.
Frequently Asked Questions
What are the Sacroiliac Lateral Branches?
The lateral branch nerves are a network of small sensory nerves that emerge from the sacrum (the bone at the base of your spine) and provide sensation to the Sacroiliac (SI) joint. When the SI joint is damaged or inflamed, these nerves constantly send pain signals to your brain.
What is the Difference Between the Block and RFA?
The Lateral Branch Block is a diagnostic test. The doctor injects a local anesthetic near the nerves; if your pain significantly decreases, it proves these nerves are the source of the problem. Radiofrequency Ablation (RFA) is the subsequent treatment phase, where heat is used to disable those same nerves for long-term relief.
Who is a Candidate for This Procedure?
Patients who have been diagnosed with SI joint dysfunction and have experienced temporary, but successful, relief from previous SI joint injections or lateral branch blocks are ideal candidates. It is designed for those seeking a more permanent solution than traditional steroid injections.
What Happens During the Procedure?
Both procedures are performed on an outpatient basis. Using fluoroscopic (X-ray) guidance, the doctor accurately places needles alongside the lateral branch nerves. For the block, numbing medication is injected. For the RFA, a specialized probe delivers radiofrequency energy to gently burn and deactivate the nerves.
How Long Does the Pain Relief Last After RFA?
Because the lateral branch nerves have been deactivated, they can no longer transmit pain signals. Relief from an RFA procedure typically lasts anywhere from 6 to 18 months, and sometimes longer. If the nerves eventually regenerate and pain returns, the procedure can be safely repeated.
Ready to take the next step in your care?
Schedule your consultation with Pearl Surgery Center today.
