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Radiofrequency Ablation Back, Neck or Knee Pain That Won’t Let Up
Precise heat delivered through a thin needle or catheter, used to quiet the nerves sending pain signals or to treat tissue without open surgery. Find the practices that offer it and choose the ones you want.
FDA-Cleared
Radiofrequency ablation devices are FDA-cleared for a range of uses.
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What Is Radiofrequency Ablation?
Radiofrequency ablation, or RFA, uses radio waves to heat a small, targeted area. For chronic pain, a physician guides a thin needle to the nerves carrying pain from a joint in the spine, the knee or the hip, and heats them so they stop sending the signal.
The same idea is used elsewhere: to shrink thyroid nodules, to close varicose veins, to treat some tumors and, through a catheter, to correct certain heart rhythm problems. Most procedures are outpatient and done with local anesthesia or light sedation.
Conditions It’s Used or Studied For
Chronic Low Back and Neck Pain
Knee Arthritis Pain
Sacroiliac Joint Pain
Thyroid Nodules
Varicose Veins
Heart Rhythm Problems
Only your physician can say whether it is right for you.
Before You Match
What to Know
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A Test Block Often Comes First
For pain, practices usually confirm the right nerves with a numbing injection before ablating them.
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Relief Can Wear Off
Nerves can regrow over time, and the procedure can often be repeated. Ask what to expect.
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It Treats Pain, Not Arthritis
For joint pain, RFA quiets the nerve. It does not repair the joint itself.
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Different Uses, Different Specialists
Pain, thyroid, vein and heart RFA are done by different specialists. Make sure the practice treats your condition.
More About Radiofrequency Ablation
Health e Match summarized this information from the sources listed below. It is general information, not medical advice.
Who Is a Candidate?
For pain, RFA is considered for chronic low back or neck pain coming from the small facet joints of the spine, for knee pain from arthritis, and for sacroiliac joint pain, usually after physical therapy, medicines and injections have not given lasting relief.
Candidates first have diagnostic nerve blocks: if numbing the targeted nerves relieves the pain, RFA is more likely to help. RFA for thyroid nodules, varicose veins and heart rhythm problems is done by other specialists with their own criteria.
What to Expect
Pain RFA is an outpatient procedure done with local anesthetic and sometimes light sedation. Using X-ray or ultrasound guidance, the physician places thin needles near the nerves, tests their position with a small electrical signal, and then heats them for a short time.
The procedure usually takes 30 to 90 minutes, and you will need someone to drive you home.
Recovery and Follow-Up
Soreness at the treatment site is common for a few days to two weeks. Relief often develops over two to four weeks. Most people return to normal activities within a day or two.
Nerves can regrow, and pain may return after months; the procedure can often be repeated.
Risks and Side Effects
Possible effects include a temporary flare of pain, numbness or skin sensitivity, bruising and infection. Serious nerve injury is rare. Tell your physician about any implanted device, such as a pacemaker, before treatment.
Cost and Insurance
Medicare and many insurers cover RFA for facet joint pain when diagnostic blocks show relief, and they set rules for how often it can be repeated. Coverage for knee and other uses varies. Ask the practice to confirm your plan’s requirements.
Choosing a Practice
Questions worth asking in your first conversation:
- Which RFA procedures do you offer for my type of pain?
- Do you perform diagnostic blocks first, and how many?
- Do you use X-ray or ultrasound guidance?
- What do you do if my pain returns?
Alternatives to Consider
Alternatives include physical therapy, medicines, steroid injections, spinal cord stimulation, weight loss, and surgery such as spinal fusion or knee replacement. Your physician can help weigh these against RFA.
Sources
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Questions
What Patients Ask
Is radiofrequency ablation FDA-cleared?
Yes. Radiofrequency ablation devices are FDA-cleared for a range of uses, including pain management, vein and thyroid treatment.
How long does pain relief from RFA last?
It varies from person to person. For many, relief lasts months, and the procedure can often be repeated if pain returns.
Is it covered by insurance?
Many plans cover RFA when medical criteria are met, often after a successful test block. A practice can tell you what your plan requires.
What should I list on my profile?
Where your pain is or what condition you have, how long you have had it, what you have tried, your insurance and that you are exploring RFA.
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This page is general information, not medical advice, and it was last updated October 15, 2026. healthematch.com makes introductions between patients and practices in the United States. It does not provide medical care, does not enroll anyone in clinical research, and does not recommend any particular procedure or provider. Where a practice has documented a therapy’s regulatory status, it is shown exactly as documented. Are you a practice? See the radiofrequency ablation page for practices.