By Dr. Suzanne Manzi, MD
Quadruple Board-Certified in Physical Medicine & Rehabilitation, Pain Medicine, Electrodiagnostic Medicine, and Obesity Medicine

What Is Genicular Nerve Ablation and How Does It Provide Long-Term Knee Pain Relief?

Chronic knee pain from osteoarthritis affects millions of adults, and for many, conservative treatments like physical therapy, anti-inflammatory medications, and corticosteroid injections provide only temporary relief. Genicular nerve ablation—also known as genicular radiofrequency ablation (RFA) or knee nerve ablation—offers a targeted interventional approach for patients who need longer-lasting pain reduction without surgery. In a randomized controlled trial, fluoroscopic-guided radiofrequency ablation of genicular nerves produced significantly greater pain relief and functional improvement compared to standard analgesic therapy (Pain Physician 2018).

With Dr. Manzi’s quadruple board certification in Physical Medicine & Rehabilitation, Pain Medicine, Electrodiagnostic Medicine, and Obesity Medicine, I understand how chronic knee pain can limit every aspect of daily life—from work productivity to the activities that keep you healthy and engaged. In this article, I will explain how genicular nerve ablation works, what the research shows about its effectiveness and duration of relief, who is a good candidate, and what to expect during your visit at Performance Pain and Sports Medicine.

Important Safety Information

Genicular nerve ablation is generally well tolerated, but it is important to discuss your full medical history with your physician before the procedure. Active infections near the treatment site, bleeding disorders, and pregnancy are contraindications that should be evaluated. If you take blood thinners, your physician may recommend temporary adjustment before the procedure. Temporary side effects may include numbness, bruising, or mild increased pain at the injection sites, all of which typically resolve within days. A diagnostic genicular nerve block is performed first to confirm that you are a good candidate, helping ensure the ablation targets the correct nerves. Patients with implanted electrical devices or certain neurological conditions should undergo thorough evaluation before proceeding.

How Genicular Nerve Ablation Works to Reduce Chronic Knee Pain

The genicular nerves are small sensory branches that supply the knee joint capsule. In patients with osteoarthritis, these nerves continuously transmit chronic pain signals, even when the underlying joint damage cannot be reversed. Genicular nerve ablation uses radiofrequency energy to create a controlled thermal lesion along these nerve pathways, interrupting pain transmission without affecting motor function or knee strength.

The procedure is performed under fluoroscopic (real-time X-ray) guidance, which ensures precise needle placement at the target sites. The three primary genicular nerves treated are the superior lateral, superior medial, and inferior medial genicular nerves (UCLA Health). Radiofrequency energy heats the tissue to approximately 80 degrees Celsius, creating a temporary interruption in nerve conduction that can last months to over a year. This is the same principle behind radiofrequency ablation procedures used throughout interventional pain management. Because only sensory fibers are targeted, patients retain normal knee function and strength throughout the treatment period (Cleveland Clinic).

What the Research Shows: Success Rates and Duration of Relief

Pain Reduction and Functional Improvement

A 2018 single-blind randomized controlled trial evaluated fluoroscopic-guided genicular nerve RFA in 60 patients with chronic knee osteoarthritis. The RFA group demonstrated significantly greater pain relief on the Visual Analog Scale (VAS) at two weeks, three months, and six months, along with improved WOMAC functional scores at six months compared to patients receiving standard analgesic therapy (Pain Physician 2018). A retrospective study of 48 patients confirmed significant VAS reduction at one, three, and six months post-procedure, with over 66% of opioid users and 56% of NSAID users able to discontinue their pain medications (Turk J Med Sci 2020).

It is worth noting that one 2022 double-blind, placebo-controlled trial found that bipolar genicular nerve RFA did not demonstrate superior pain relief compared to the control group at 12 months—though the control group received local anesthetic with steroid injections (an active comparator rather than a true placebo), which may have influenced the results (Reg Anesth Pain Med 2022). The broader body of evidence supports that genicular nerve ablation works best for carefully selected patients who respond positively to diagnostic blocks.

Duration of Relief and Repeat Treatment

Clinical evidence indicates that genicular nerve ablation may provide significant pain reduction lasting six months or longer, with many patients experiencing relief approaching or exceeding one year when combining findings across multiple studies. Because the procedure creates a temporary interruption rather than permanent nerve destruction, nerves can regenerate over time. The encouraging aspect of this is that the procedure can be safely repeated if pain returns. Duration varies based on the extent of osteoarthritis, activity level, and the precision of nerve targeting.

Patient Selection and Predictors of Success

The best outcomes occur in patients who have not found lasting relief from conservative treatments but are not ready for knee replacement surgery. A positive response to a diagnostic genicular nerve block is the strongest predictor of success with the ablation procedure. Research from the Society of Interventional Radiology suggests that adults over 50 with moderate osteoarthritis may respond particularly well to genicular nerve procedures (SIR 2023).

Genicular Nerve Ablation as Part of a Comprehensive Pain Management Strategy

Genicular nerve ablation is most effective as part of a multimodal approach to knee osteoarthritis, not as an isolated treatment. I often combine it with physical therapy, weight management strategies, and regenerative medicine options such as PRP therapy or viscosupplementation to address the condition from multiple angles. The goal is always restoring function and quality of life for active adults—not simply masking symptoms.

One of the most valuable aspects of genicular nerve ablation is the window of reduced pain it creates. When chronic knee pain decreases, patients can participate more fully in physical therapy and exercise programs that strengthen the muscles supporting the joint. This may delay or even reduce the need for knee replacement surgery. The National Center for Complementary and Integrative Health notes that osteoarthritis management benefits from a broad spectrum of non-surgical strategies (NCCIH/NIH). Whether you are walking along Buffalo Bayou Park or simply moving through your daily routine, the goal is getting back to the activities that matter most.

Genicular Nerve Ablation for Active Adults in Houston and the Gulf Coast Region

Chronic knee pain does not just affect how you move—it can impact your work performance, your independence, and your mental health. For active professionals, recreational athletes, and older adults across the Greater Houston area, finding effective relief is essential to maintaining the quality of life you have worked hard to build. Genicular nerve procedures have shown particular promise for adults over 50 who are seeking non-surgical solutions (SIR 2023).

At Performance Pain and Sports Medicine, we provide physician-led, evidence-based care in a boutique practice setting with locations in Houston, Baytown, and League City, Texas, as well as Lawrenceville, New Jersey. Genicular nerve ablation is an in-office procedure performed under fluoroscopic guidance, allowing most patients to return to their daily activities quickly. Whether you enjoy cycling through Memorial Park or need to stay on your feet for a demanding career, our approach focuses on restoring function through advanced interventional pain management at our Houston office.

When Should You Consider Genicular Nerve Ablation for Your Knee Pain?

If you have tried physical therapy, medications, and injections but your knee pain persists, genicular nerve ablation may be worth discussing with your physician. Candidates typically experience chronic knee pain lasting three or more months that worsens with weight-bearing activities such as climbing stairs, standing for extended periods, or walking long distances. The procedure is particularly well suited for patients who are not ready for knee replacement surgery but need more sustained relief than injections can provide.

A positive diagnostic genicular nerve block remains the strongest predictor of success. If the block provides meaningful temporary relief, it confirms that the genicular nerves are a significant source of your pain—and that ablation is likely to provide longer-lasting benefit. You deserve to feel confident about your treatment options, and seeking evaluation is an important step.

What to Expect During Your Visit at Performance Pain and Sports Medicine

Your journey begins with an initial consultation, during which I review your medical history, imaging studies, and prior treatments, followed by a thorough physical examination. If genicular nerve ablation appears appropriate, we start with a diagnostic nerve block—a same-day procedure using local anesthetic to temporarily block the genicular nerves and confirm candidacy.

The ablation procedure itself is performed on an outpatient basis with local anesthesia and optional light sedation. Using fluoroscopic guidance, I place the radiofrequency needle at each target site, and the RF energy is applied for 60 to 90 seconds per nerve. The entire procedure typically takes 30 to 60 minutes. Afterward, you rest briefly and go home the same day. Most patients return to normal activities within a few days, with full pain relief developing over one to two weeks. Follow-up appointments allow me to track your progress and adjust your comprehensive treatment plan as needed.

Comparing Your Options: What Research Suggests

What Our Patients Say

Hearing from patients who have experienced comprehensive care at our practice can help you understand what to expect. One patient recently shared their perspective:

Excerpt from a publicly shared patient review. Individual results vary based on diagnosis, treatment plan, and individual factors.

Take the Next Step Toward Lasting Knee Pain Relief

Genicular nerve ablation is a clinically studied, minimally invasive option for patients with chronic knee osteoarthritis who have not found lasting relief from conservative treatments. Research suggests this procedure may provide six to twelve months or more of significant pain reduction, and it can be safely repeated as needed. For many patients, it represents an important step toward restoring function and reclaiming an active lifestyle without the risks and recovery time of surgery.

Results vary by individual, and outcomes depend on factors including the severity of osteoarthritis, response to diagnostic blocks, and overall health. Together, we will develop a personalized treatment plan designed around your specific needs and goals.

We serve patients throughout the Greater Houston area—including Pearland, Sugar Land, the Galleria area, and the Gulf Coast region—with additional locations in Baytown, League City, and Lawrenceville, New Jersey.

Frequently Asked Questions