Radiofrequency Ablation (RFA) for Chronic Pain

Targeted Relief for Nerve-Related Back and Neck Pain

Radiofrequency Ablation (RFA) is an advanced, minimally invasive procedure designed to reduce chronic pain by interrupting nerve signals, disrupting the nerves responsible for causing pain. At Melbourne Neurocare, we offer RFA as part of our comprehensive interventional pain management services for patients suffering from persistent spinal or joint pain, including pain originating from the facet joints, which connect the vertebrae in the spine, particularly in the lower back, neck, and sacroiliac joints.

If traditional treatments like physiotherapy or medication haven’t provided lasting relief, RFA may be a safe and effective next step, and is one of several treatment options available for chronic pain management.

What is Radiofrequency Ablation?

The radiofrequency ablation procedure is a minimally invasive treatment that uses controlled heat generated by radio waves, utilising advanced radiofrequency technology for precise targeting, to target specific nerves responsible for transmitting pain signals to the brain. By creating a small lesion in the nerve tissue, this radiofrequency treatment can “turn off” the pain signal from that area—without affecting nearby function or movement.

The procedure is image-guided and performed by our experienced interventional specialists. A specialized probe tip is used to deliver the radiofrequency treatment directly to the targeted nerve. The heat destroys the targeted nerve tissue, which may be diseased tissue, to stop pain transmission.

The procedure is typically performed under local anaesthesia for patient comfort.

Conditions Treated with RFA

RFA is most commonly used to treat chronic pain in areas where irritated or arthritic joints are sending pain signals via sensory nerves. These include:

  • Facet joint pain in the cervical (neck) or lumbar (lower back) spine
  • Chronic low back pain from lumbar facet syndrome
  • Neck pain from cervical facet arthritis
  • Sacroiliac joint dysfunction
  • Pain following whiplash injuries
  • Failed back surgery syndrome (in some cases)
  • Chronic knee pain (e.g., targeting genicular nerves)
  • Chronic hip pain (e.g., targeting the obturator and femoral nerves)
  • Chronic shoulder pain (e.g., targeting the suprascapular nerve)
  • Headache and facial pain syndromes (e.g., targeting occipital nerves or trigeminal neuralgia as described in curr pain headache rep)
  • Neuropathic pain involving the dorsal root ganglion or splanchnic nerves (e.g., for abdominal or radicular pain)
  • Pain management in cancer, such as pancreatic cancer, where nerve ablation may provide palliative relief

In selected cases, RFA may also be used for peripheral nerve pain or certain types of neuropathic pain, as well as other chronic pain syndromes.

RFA has been successfully used in a wide range of patients treated for various chronic pain syndromes.

How Radiofrequency Ablation Works

The aim of RFA is to selectively disable the nerves that are carrying pain signals—without affecting motor nerves or critical structures. Here’s how the procedure works:

  1. Nerve Identification
    First, a diagnostic injection (medial branch block or facet joint block) is performed to confirm the source of pain. If you experience significant temporary relief, you’re likely a good candidate for RFA.
  2. Image-Guided Needle Placement
    During the RFA procedure, a specialised needle is guided to the target nerve under imaging.
  3. Nerve Stimulation
    A mild electrical current is used to verify proximity to the correct sensory nerve without affecting surrounding motor nerves.
  4. Heat Application
    Radiofrequency energy is delivered to create a small lesion on the nerve, effectively stopping it from sending pain signals. In radiofrequency denervation, heat is applied at higher temperatures (around 90°C) to disrupt pain transmission in targeted nerves. Alternatively, pulsed radiofrequency or water-cooled radiofrequency techniques may use lower temperature settings (around 42°C) to avoid nerve destruction while still providing pain relief, especially for specific targeted nerves.
  5. Completion and Recovery
    The procedure usually takes 30–60 minutes and is performed under local anaesthesia with or without mild sedation.

Compared to previous methods of nerve ablation, current techniques such as pulsed radiofrequency and water-cooled radiofrequency offer improved safety and precision. These innovations allow for controlled lesion size, reduced risk of nerve damage, and more effective targeting of pain pathways than traditional approaches.

Minimally Invasive Nature of RFA

Radiofrequency ablation (RFA) stands out as a minimally invasive procedure that offers significant advantages for those living with chronic pain. Unlike traditional surgery, RFA requires only a small needle to access the targeted nerve tissue, minimising trauma to surrounding areas. Using advanced imaging guidance, your pain physician can precisely deliver radiofrequency energy to the nerves responsible for sending pain signals, such as those involved in joint pain or lumbar facet joint pain. This targeted approach not only disrupts the pain pathway but also reduces the risk of complications and shortens recovery time. Most patients experience long-lasting pain relief and are able to return to their normal routines much sooner than with more invasive procedures. For individuals seeking effective pain management for chronic pain syndromes, the minimally invasive nature of the RFA procedure makes it an appealing option for achieving lasting relief with minimal downtime.

Technology Used in RFA

Radiofrequency ablation (RFA) relies on state-of-the-art technology to deliver safe and effective pain relief for a variety of chronic pain conditions. The procedure is performed on a specialised procedure table, where your pain physician uses medical imaging—such as ultrasound guidance or fluoroscopy—to accurately locate the target nerve. Once the precise location is confirmed, a thin needle is guided to the nerve tissue responsible for sending pain signals. A radiofrequency generator then delivers controlled radiofrequency energy, creating thermal energy that disrupts the nerve’s ability to transmit pain. This technology allows for highly targeted treatment of conditions like facial pain, neck pain, and shoulder pain, while minimising the impact on surrounding tissues. The use of advanced imaging guidance ensures that the RFA procedure is both safe and effective, providing patients with a reliable option for managing chronic pain.

Benefits of RFA

Radiofrequency Ablation offers significant benefits for patients with chronic pain:

  • Minimally invasive – No incisions or hospital stays required
  • Targeted relief – Addresses the precise source of pain
  • Long-lasting results – Pain relief can last 6–18 months or longer
  • Reduces medication reliance – May help reduce or eliminate the need for ongoing pain medication
  • Quick recovery – Most patients return to normal activities within 1–2 days

RFA can be repeated if pain returns once the nerve regenerates—usually after several months to a year. Nerves regenerate at a rate of about 1 to 1.5 millimeters per week, which explains why pain relief may diminish over time as the nerve heals. Clinical research, such as studies published in j pain res, supports the effectiveness of RFA for pain res (pain resolution) in chronic pain conditions.

Who is a Candidate for RFA?

You may be considered for Radiofrequency Ablation if:

  • You’ve had chronic neck, back, or sacroiliac joint pain for 3+ months
  • You’ve responded well to a diagnostic nerve block
  • Imaging studies (like MRI) support the diagnosis of facet joint or SI joint-related pain
  • You have not found lasting relief from physiotherapy, medications, or other conservative treatments
  • You want a non-surgical option with longer-term relief

Evaluation and the procedure are often performed by specialists in pain medicine and physical medicine and rehabilitation, ensuring expert assessment and care.

RFA is not suitable for pain caused by active infection, tumours, severe spinal instability, or conditions where the pain source is unclear.

What to Expect Before, During, and After the Procedure

Before

You’ll have a consultation with your pain specialist who will review your history, physical exam, imaging results, and diagnostic blocks. You may be asked to stop certain medications before the procedure.

During

RFA is performed as a day procedure under local anaesthesia. You’ll lie comfortably on a procedure table while a needle is guided to the nerve. Mild sedation may be used if necessary.

After

You’ll be monitored for a short period before going home. Some patients feel immediate relief; others may experience soreness for a few days before full effects are felt (usually within 1–3 weeks). A gradual return to normal activity is encouraged.

Clinical Significance of RFA

The clinical significance of radiofrequency ablation (RFA) lies in its proven ability to deliver long-term pain relief for patients with chronic pain syndromes. RFA is especially effective for conditions such as lumbar facet joint pain, sacroiliac joint pain, and trigeminal neuralgia, where specific nerves—like the medial branch nerves or lateral branch nerves—are responsible for transmitting pain signals. By using techniques such as pulsed radiofrequency or radiofrequency neurotomy, pain physicians can precisely target and disrupt these nerves, providing lasting relief even when other pain management strategies, such as pain medication or physical therapy, have not been successful. The minimally invasive nature of the procedure further enhances its value, offering a lower risk profile and faster recovery compared to more invasive treatments. For patients seeking long-term pain relief from chronic pain, RFA represents a clinically significant advancement in the field of pain medicine and interventional pain management.

Risks and Side Effects

RFA is considered very safe when performed by trained specialists. However, like any procedure, it carries some small risks, including:

  • Mild temporary soreness or bruising at the injection site
  • Numbness or tingling (temporary)
  • Infection (rare)
  • Nerve irritation (rare, typically resolves)

Our team ensures that you’re fully informed and comfortable at every stage of the process.

Why Choose Melbourne Neurocare?

At Melbourne Neurocare, you’ll receive care from a multidisciplinary team of neurologists and interventional pain specialists who focus on:

  • Precision diagnosis using imaging and functional testing
  • Minimally invasive procedures tailored to your specific condition
  • Evidence-based care grounded in the latest clinical guidelines
  • Patient education and support for long-term pain management

We work with you to develop a sustainable plan to reduce pain, restore function, and improve quality of life—whether RFA is your next step or part of a broader care pathway.

Book Your Back Pain Consultation

If you’re living with chronic back or neck pain and haven’t found lasting relief, Radiofrequency Ablation may be a powerful treatment option worth exploring.

Contact Melbourne Neurocare today to book a consultation and find out if RFA is right for you.

Book an appointment

We encourage you to schedule a consultation with one of our expert neurologists, other specialists, or allied health professionals. Your well-being is our highest priority, and we are committed to helping you achieve the best possible results.