Intracept vs. Traditional RFA: Which Ablation Targets Your Back Pain?
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Published in The Ospina Orthopedic Blog ~ 6 min read ~ Last Updated: November 25, 2025
The Puzzle of Chronic Low Back Pain
For patients navigating the landscape of chronic low back pain (CLBP), the terminology can be overwhelming. You may have heard of "ablations" or "nerve burns," but did you know that not all ablation procedures target the same source of pain?
In the past, many patients with chronic lower back pain were diagnosed with arthritis of the facet joints—the small stabilizing joints on the back of the spine. The standard treatment was Radiofrequency Ablation (RFA) of the medial branch nerves. While effective for some, many patients found their relief was temporary or incomplete.
Recent advancements have revealed a different, often overlooked source of pain: the vertebrae themselves. This is known as vertebrogenic pain, and treating it requires a different tool: the Intracept® Procedure. At Ospina Medical, we pride ourselves on precise diagnosis to ensure you can pursue the right procedure for your specific anatomy.
Traditional RFA: Targeting the Facet Joints
Traditional Radiofrequency Ablation (RFA) is a well-established procedure designed to treat pain originating from the facet joints. These joints can become arthritic and inflamed, causing pain that worsens with twisting or extending the back.
- The Target: The medial branch nerves, which are small nerves located on the outside of the spinal column that transmit pain signals from the facet joints.
- The Procedure: A special needle is guided to the nerve, and heat is used to disrupt its ability to send pain signals. This is typically done under fluoroscopic (X-ray) guidance.
- The Outcome: This can provide significant relief, but it is often temporary. Why? Because these peripheral nerves have a high capacity to regenerate. The pain relief typically lasts 6 to 12 months before the nerves grow back, often requiring the procedure to be repeated. Studies show that RFA can be a highly effective management tool for facet joint pain, but it is often a maintenance therapy rather than a permanent fix.
The Intracept Procedure: Targeting Vertebrogenic Pain
The Intracept Procedure represents a paradigm shift. It does not target the facet joints. Instead, it targets the basivertebral nerve (BVN), which lives inside the vertebral bone.
Research has shown that the vertebral endplates—the top and bottom surfaces of the vertebral body—are rich in nerve endings. When these endplates become damaged (often visible on MRI as Modic Changes), they transmit deep, aching, midline back pain that is distinct from facet pain. This is "vertebrogenic" pain.
- The Target: The basivertebral nerve (BVN), located centrally within the vertebra. This nerve is responsible for transmitting pain signals from the damaged endplates.
- The Procedure: The Intracept probe is navigated into the bone itself to ablate the BVN trunk. This is an intraosseous (inside the bone) procedure.
- The Outcome: Because the BVN does not regenerate in the same way medial branch nerves do, the results of the Intracept Procedure are remarkably durable. Clinical studies, including 5-year data from the SMART trial, show that relief is long-lasting, often considered permanent for that specific level.
Evidence of Efficacy
The Intracept Procedure is supported by Level 1 evidence. In the SMART trial, a prospective, randomized, double-blind, sham-controlled study, patients treated with BVN ablation showed significant improvements in the Oswestry Disability Index (ODI) and Visual Analog Scale (VAS) for pain compared to the sham group.
- Pain Relief: Success rates (=50% pain reduction) were 65% at 6 months and 64% at 12 months.
- Functional Improvement: A 75% improvement in ODI scores was observed at 12 months.
- Durability: 5-year follow-up data indicated that 66% of patients reported a =50% reduction in pain, and 47% reported a =75% reduction.
- Opioid Reduction: Long-term data suggested a significant drop in opioid use among treated patients, from 30% at baseline to just 8% at the 5-year mark.
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Which Procedure Is Right for You?
The distinction comes down to diagnosis. It is not about one procedure being "better" than the other; it is about which pain generator is active in your spine.
- You might be a candidate for Traditional RFA if: Your pain is worse when leaning backward or twisting, you have tenderness over the facet joints, and you have had a successful "test block" (a temporary numbing injection) of the medial branch nerves that provided >50% relief.
- You might be a candidate for Intracept if: You have chronic low back pain for more than 6 months that has not responded to conservative care, and your MRI shows Modic Type 1 or Type 2 changes. These changes indicate inflammation (Type 1) or fatty infiltration (Type 2) within the bone marrow, which are the hallmarks of vertebrogenic pain.
A Precision Approach at Ospina Medical
At Ospina Medical, we do not guess. Dr. Matthew Kohler utilizes advanced imaging review and diagnostic testing to differentiate between facet-mediated pain and vertebrogenic pain. By identifying the exact source, we can select the ablation technique—Traditional RFA or Intracept—that offers you the highest probability of success.
For patients who have failed traditional RFA or epidurals, the Intracept Procedure offers new hope. It is a powerful, evidence-based alternative to spinal fusion that preserves the structure of your spine while effectively shutting down the deep pain signals. If you are looking for a physician who can navigate these advanced options with expertise and compassion, schedule a consultation with Dr. Matthew Kohler at Ospina Medical today.
A Riley Publication ~ Branded Thought Leadership by Riley Partners and Publications, Inc.
Medically Reviewed by: Matthew Kohler, MD