Radiofrequency ablation, sometimes called RFA or radiofrequency neurotomy, is a minimally invasive procedure that uses heat generated by radio waves to interrupt pain signals from specific spinal nerves, most often the medial branch nerves that supply the facet joints. It is generally considered for chronic neck or back pain that has already been traced to a specific nerve source through diagnostic testing. Not everyone with spine pain is a candidate, and the procedure does not treat every cause of back or neck pain. At the Center for Spine & Pain Medicine (CSPM), our providers evaluate each patient individually, using a combination of history, examination, imaging, and diagnostic blocks to determine whether radiofrequency ablation is an appropriate option before recommending it.
Radiofrequency Ablation for Chronic Back and Neck Pain
What Is Radiofrequency Ablation?
Radiofrequency ablation is a minimally invasive therapeutic procedure that uses heat generated by radio waves to reduce a targeted nerve's ability to send pain signals to the brain. It is primarily a therapeutic treatment used after diagnostic testing has already identified a likely nerve source of pain, most commonly the medial branch nerves of the facet joints in the neck or back.
Unlike surgery, radiofrequency ablation does not require an incision. A thin, needle-like probe is guided to the target nerve using imaging guidance, and radiofrequency energy is delivered through the probe's tip. The treated nerve continues to carry other signals related to muscle function; the small sensory branches that carry pain signals from the joint are targeted.
How Does Radiofrequency Ablation Work?
Radiofrequency ablation works by using controlled heat to create a temporary lesion in a targeted sensory nerve, which interrupts the pain signals that nerve sends from a painful joint. The nerve may eventually regenerate, which is why relief is not considered permanent.
During treatment, radiofrequency energy passes through the tip of a specialized needle placed next to the target nerve. This energy generates heat, which is applied for a set period of time under imaging guidance. The goal is to affect only the sensory branch responsible for transmitting pain from the joint, sparing the surrounding structures as much as possible. Because nerves have some capacity to regrow over time, the effects of the procedure are not expected to be permanent for most patients.
What Conditions May Radiofrequency Ablation Help Treat?
Radiofrequency ablation is most often used for chronic neck or back pain that has been linked to the facet joints, small joints located along the back of the spine that allow it to bend and rotate. It is generally considered only after a diagnostic nerve block has confirmed the likely source of the pain.
Conditions in which radiofrequency ablation may be considered include facet joint-related low back pain, facet joint-related neck pain, and certain cases of chronic pain following spinal wear and degeneration involving these joints. It is not a treatment for every type of back or neck pain, including many causes of disc-related or nerve-root pain. Patients with questions about their specific diagnosis can review our conditions page or discuss their imaging and symptoms with a CSPM provider.
Who May Be a Candidate for Radiofrequency Ablation?
A person may be a candidate for radiofrequency ablation if they have chronic axial neck or back pain, have already tried conservative treatments without lasting relief, and have had a diagnostic medial branch block that significantly reduced their pain. A physician must confirm candidacy through evaluation.
Candidacy generally involves a combination of factors: a clinical history and exam consistent with facet joint-related pain; imaging or testing, when appropriate; a documented trial of conservative care, such as physical therapy or medication management; and general health suitable for a minimally invasive procedure. A diagnostic block, in which a small amount of local anesthetic is injected near the target nerve, is typically used first to confirm that the nerve is a significant source of pain before proceeding with ablation. The physician's assessment of the diagnostic block response, imaging findings, and overall clinical picture plays the central role in determining candidacy, and this determination is made on an individual basis.
Who May Not Be a Candidate for Radiofrequency Ablation?
Some patients are not good candidates for radiofrequency ablation, including those with active infection near the treatment site, certain bleeding disorders or blood-thinning medications that cannot be safely paused, or pain that diagnostic testing does not attribute to the targeted nerve. A physician determines candidacy on a case-by-case basis.
Other situations that may affect candidacy include pregnancy, certain implanted devices, and pain patterns that appear to originate from a different structure, such as a spinal disc or nerve root rather than a facet joint. This is not a complete list of every possible exclusion, and it should not be used for self-diagnosis. Only a qualified physician can determine whether radiofrequency ablation is appropriate for an individual patient.
What Happens Before the Procedure?
Before radiofrequency ablation, patients typically consult with a CSPM provider to review their symptoms, prior treatments, and relevant imaging or medical records. A diagnostic medial branch block is generally performed first to help confirm the nerve source of pain before ablation is scheduled.
Preparation commonly includes a medication review, particularly for blood thinners, and insurance authorization, since many insurers require documentation of diagnostic blocks and prior conservative treatment before approving the procedure. Specific pre-procedure instructions, such as fasting requirements or medication adjustments, are provided by the treating physician based on the individual patient and planned level of sedation.
What Happens During the Procedure?
During radiofrequency ablation, the patient lies on a procedure table while the physician uses imaging guidance, usually fluoroscopy, to position a thin needle near the target nerve. Local anesthetic numbs the skin, and radiofrequency energy is then applied to the nerve for a set period before the needle is removed.
Generally, the process involves positioning the patient for optimal access to the treatment area, cleaning and numbing the skin, using imaging to guide needle placement to the target nerve or nerves, confirming needle position with nerve stimulation testing, applying local anesthetic, delivering radiofrequency energy to create the lesion, and monitoring the patient briefly afterward. Some patients receive mild sedation in addition to local anesthetic, depending on the physician's assessment and the patient's preference.
Does Radiofrequency Ablation Hurt?
Most patients experience pressure, warmth, or brief discomfort during radiofrequency ablation rather than significant pain, because the skin and deeper tissues are numbed with local anesthetic before the radiofrequency energy is applied. Some soreness at the needle site is common for a few days afterward.
Sensations during the procedure vary and may include a pinching feeling from the needle, brief tingling or muscle twitching during nerve stimulation testing, and warmth as the radiofrequency energy is delivered. Sedation, when used, can further reduce discomfort. Pain tolerance and individual anatomy affect how a person experiences the procedure. Patients should promptly report any severe or unexpected pain, numbness, or other unusual symptoms to their care team, both during the visit and in the days that follow.
How Long Does the Procedure Take?
The radiofrequency ablation procedure itself is generally brief, often completed within a shorter appointment window, but the exact time can vary depending on the number of nerve levels being treated. Preparation, positioning, and post-procedure observation add additional time to the overall visit.
Because treatment time depends on how many spinal levels are involved and individual anatomy, patients should plan for their total appointment, including check-in, preparation, the procedure, and a recovery observation period, to take longer than the ablation itself.
How Long Is Recovery After Radiofrequency Ablation?
Recovery after radiofrequency ablation is generally short, with many patients resuming normal daily activities within a day or two, though some soreness at the treatment site is common for several days. Driving, work, and exercise restrictions vary by individual and by the physician's instructions.
Patients are typically advised to have someone drive them home if sedation was used, to rest for the remainder of the procedure day, and to gradually resume normal activity as tolerated. Applying ice to the treatment area, avoiding strenuous activity for a short period, and attending any scheduled follow-up visit are common general recommendations. Because recovery instructions can vary by physician, the extent of the procedure, and individual health, patients should follow the specific guidance provided by their CSPM provider rather than general information alone.
When Might a Patient Notice Results?
Some patients notice temporary numbness or reduced pain within hours of the procedure due to the local anesthetic used during treatment, which is separate from the longer-term effects of the radiofrequency ablation itself. The treatment-related reduction in pain, when it occurs, often develops over one to three weeks as post-procedure inflammation from the nerve lesion settles.
It is common for pain to temporarily return or even feel slightly worse for a short period after the anesthetic wears off and before the treatment effect sets in. Relief is not guaranteed for every patient, and the timeline for noticing results can vary based on the nerves treated and individual healing.
How Long Might the Results Last?
Relief from radiofrequency ablation varies by patient and is not permanent, since treated nerves can regenerate over time. A systematic review and meta-analysis of randomized controlled trials found that radiofrequency ablation for facet joint-related spinal pain has moderate-quality evidence supporting meaningful pain relief, with outcomes categorized as short-term (under six months) or long-term (over six months) depending on the study. Because nerves can regrow, some patients who respond well to an initial treatment may be candidates for a repeat procedure later if pain returns.
Duration of relief varies from patient to patient and depends on factors such as the nerve treated, the technique used, and the individual healing response. No single duration of relief applies universally, and CSPM does not promise a specific length of benefit for any individual patient.
How Much Does Radiofrequency Ablation Cost?
The out-of-pocket cost of radiofrequency ablation depends on factors such as insurance network status, deductible, copayment, and coinsurance, and CSPM does not publish a fixed price because costs vary significantly by individual insurance plan and clinical circumstances.
Additional factors that can affect total cost include facility fees, the imaging guidance used during the procedure, anesthesia or sedation services, the number of nerve levels treated, whether a diagnostic block is required first, prior authorization requirements, and whether the insurer deems the treatment medically necessary. Patients can find general billing and financial policy information on CSPM's financial information page or by contacting the office directly for an individualized estimate.
Does Insurance Cover Radiofrequency Ablation?
Insurance coverage for radiofrequency ablation varies by plan and generally requires documentation of medical necessity, which often includes a history of conservative treatment and a positive response to a diagnostic medical branch block. Coverage is not guaranteed, and prior authorization is frequently required before the procedure is scheduled.
Insurers typically look for documentation showing a diagnosed condition consistent with facet joint pain, evidence that lower-risk treatments were tried first, and a diagnostic block that produced meaningful, if temporary, pain relief. Some plans limit how frequently the procedure can be repeated or require specific record-keeping. Being an in-network provider does not guarantee payment for a specific claim, since coverage decisions depend on the individual policy and clinical documentation. Patients with questions about coverage can review CSPM's financial information page or contact their insurer directly.
What Is the Success Rate of Radiofrequency Ablation?
Reported outcomes for radiofrequency ablation vary across studies due to differences in patient selection and how success is measured, so there is no single universal success rate. A 2018 randomized controlled trial found that lumbar facet blocks performed before radiofrequency ablation were not themselves therapeutic but appeared to have prognostic value, with responders to diagnostic blocks going on to have better ablation outcomes than those who did not respond.
That study followed participants who had a meaningful reduction in pain and improved satisfaction after diagnostic blocks, then tracked their response to ablation over a defined follow-up period. A separate multicenter, prospective real-world study of patients treated with lumbar radiofrequency ablation reported that most enrolled patients had chronic low back pain of at least two years' duration, and that the large majority of those who underwent diagnostic medial branch blocks reported substantial pain relief from the diagnostic block itself, which was used to help select patients for ablation. These findings describe study populations under specific conditions and over specific follow-up periods; they do not predict the outcome for any individual CSPM patient, and CSPM does not guarantee a specific percentage of relief.
What Are the Risks and Side Effects?
Radiofrequency ablation is generally considered a low-risk procedure, but like any medical treatment, it carries potential risks and side effects. Most patients experience only temporary soreness, and serious complications are uncommon.
Common temporary effects can include soreness or bruising at the needle site, temporary numbness, and a brief flare in pain before improvement. Less common risks may include infection, bleeding, or temporary weakness or altered sensation if a nearby motor nerve is affected. Rare but serious complications can include significant nerve injury, spinal infection, or other procedure-related complications requiring further medical care. Patients should promptly report severe pain, fever, worsening weakness or numbness, loss of bladder or bowel control, or other concerning symptoms to their care team after the procedure.
What Are the Alternatives to Radiofrequency Ablation?
Alternatives to radiofrequency ablation depend on the diagnosed source of pain and may include physical therapy, activity modification, medication management, other types of spinal injections, or, in some cases, surgical consultation. No single alternative is appropriate for everyone, and the right option depends on individual diagnosis and health history.
Other options that may be considered, alone or in combination, include epidural steroid injections for nerve-root related pain, facet joint injections and medial branch blocks as a diagnostic or short-term therapeutic step, physical therapy and structured exercise programs, oral or topical medication management, genicular nerve ablation, and referral to a spine surgeon when conservative and interventional options have not provided adequate relief. A CSPM provider can help explain which alternatives may be reasonable to consider based on an individual evaluation.
Radiofrequency Ablation vs. Facet Joint Injections
| Option | Common Purpose | Typical Candidate | Procedure Type | Recovery Considerations | Potential Duration | Insurance Considerations |
|---|---|---|---|---|---|---|
| Radiofrequency Ablation | Reduces facet joint-related pain by disrupting a targeted nerve's ability to send pain signals. | Patients with confirmed facet joint pain and a positive diagnostic medial branch block. | Minimally invasive, needle-based procedure that uses heat generated by radio waves. | Recovery is often brief, although soreness may occur for a few days. | Results vary by patient. Relief is not permanent because the treated nerves may regenerate. | Insurance may require documented diagnostic blocks and proof that conservative treatments were attempted. |
| Facet Joint Injection or Medial Branch Block | Helps diagnose the source of pain and may provide short-term symptom relief. | Patients being evaluated for facet joint-related pain, including those being considered for radiofrequency ablation. | Minimally invasive, needle-based injection using an anesthetic with or without a steroid. | Typically involves minimal downtime and a very brief recovery period. | The diagnostic effect usually lasts a few hours. Any therapeutic relief is generally shorter than relief from ablation. | Often required as a diagnostic step before radiofrequency ablation is authorized. |
This table provides a general, neutral comparison and does not indicate that either option is preferable for every patient. A physician determines which approach, or combination of approaches, is appropriate based on individual evaluation.
When Should Someone Discuss Radiofrequency Ablation With a Pain Specialist?
Someone who has chronic neck or back pain that has not improved with conservative treatment, or who has already had a diagnostic nerve block that suggested a facet joint source of pain, may want to discuss radiofrequency ablation with a pain specialist. A specialist can review the full clinical picture and explain whether the procedure may be a reasonable option.
Because candidacy depends on diagnosis, prior treatment history, and diagnostic testing, an individual evaluation is the only way to know whether radiofrequency ablation is appropriate. Patients interested in learning more can book an appointment with CSPM to discuss their symptoms and treatment history with a provider.
Frequently Asked Questions
Is radiofrequency ablation permanent?
No, radiofrequency ablation is not considered a permanent treatment. The procedure creates a temporary lesion in a targeted nerve, and treated nerves can regenerate over time, so pain may eventually return for some patients. When this happens, a repeat procedure may be considered if the original treatment provided meaningful relief. Because nerve regeneration and individual healing vary, no fixed timeline applies to every patient. A physician can discuss what to expect during a personal evaluation, based on an individual's diagnosis, treated nerves, and response to prior treatment.
Do I need a diagnostic nerve block before radiofrequency ablation?
In most cases, yes. A diagnostic medial branch block is typically performed before radiofrequency ablation to help confirm that a specific nerve is a meaningful source of pain. Many insurers also require documentation of a diagnostic block before authorizing ablation. A positive response to the diagnostic block does not guarantee an identical response to ablation, but it is generally considered a useful step in patient selection. Your CSPM provider can explain how this process would apply to your specific situation during a consultation.
Can radiofrequency ablation make my pain worse?
Most patients do not experience worsening pain, but, as with any procedure, radiofrequency ablation carries a risk of temporary flare-ups, soreness, or, rarely, other complications. A brief increase in discomfort in the days immediately following the procedure is not unusual and precedes improvement. Serious or lasting worsening of pain is uncommon but should be reported to your care team promptly. Because individual responses vary, a physician can discuss your personal risk factors and what symptoms should prompt a follow-up call before you proceed with treatment.
How is radiofrequency ablation different from a steroid injection?
Radiofrequency ablation and steroid injections work differently and are often used at different stages of care. A facet joint or medial branch injection typically combines a local anesthetic, with or without a steroid, and is often used first to help diagnose the source of the pain or to provide short-term relief. Radiofrequency ablation uses heat to reduce a nerve's ability to transmit pain signals and is generally considered after a diagnostic block has helped confirm the nerve source. A provider can help explain which approach may be appropriate based on your individual diagnosis and treatment history.
Will I be awake during radiofrequency ablation?
Many patients remain awake or lightly sedated during radiofrequency ablation, since the area is numbed with local anesthetic and physicians often want the patient able to respond during nerve stimulation testing. Some patients may receive additional sedation depending on individual needs and physician judgment. The exact approach used depends on the treating physician's assessment and the patient's medical history. Discuss sedation options with your care team before the procedure.
How many times can radiofrequency ablation be repeated?
There is no universal limit on how many times radiofrequency ablation can be repeated, but repeat treatment is generally considered only if a prior procedure provided meaningful relief and pain later returned as the treated nerve regenerated. Insurance plans may have policies that limit the frequency or require updated documentation before approving another procedure. A physician evaluates whether repeat treatment is appropriate based on the individual's response to prior ablation and current symptoms, rather than applying a fixed schedule to every patient.
Can radiofrequency ablation help neck pain as well as back pain?
Yes, radiofrequency ablation can be considered for chronic neck pain linked to the cervical facet joints and for low back pain linked to the lumbar facet joints. The general approach, including the use of a diagnostic medial branch block beforehand, is similar for both regions, though the specific nerves and techniques used differ based on anatomy. Not every case of neck pain is related to the facet joints, so an individual evaluation, including a history and appropriate diagnostic testing, is needed to determine whether this treatment is appropriate for a particular patient.
For additional questions, please visit our Pain management FAQ hub.
Medical Review
Reviewed by Dr. Sadiq, MD.
Sources
- Effectiveness of Radiofrequency Ablation in Managing Chronic Axial Spinal Pain of Facet Joint Origin: A Systematic Review and Meta-Analysis of Randomized Controlled Trials – Pain Physician (Manchikanti L, Knezevic E, Knezevic NN, et al.), 2026.
- Effectiveness of Lumbar Facet Joint Blocks and Predictive Value before Radiofrequency Denervation: The Facet Treatment Study (FACTS), a Randomized, Controlled Clinical Trial – Anesthesiology (Cohen SP, Doshi TL, Constantinescu OC, et al.), 2018.
- Assessment of Real-World, Prospective Outcomes in Patients Treated With Lumbar Radiofrequency Ablation for Chronic Pain (RAPID) – Interventional Pain Medicine (Provenzano DA, Holt B, Danko M, et al.), 2025.