Chronic neck and back pain can make everyday activities difficult, particularly when pain continues despite physical therapy, medication, injections, or other conservative treatments. For some patients, radiofrequency neurotomy may provide longer-lasting relief by targeting specific nerves that transmit pain from the spinal joints.
But what is radiofrequency neurotomy, how does it work, and who may be a candidate? Understanding the procedure can help patients make more informed decisions about treatment options for chronic spinal pain.
What Is Radiofrequency Neurotomy?
Radiofrequency neurotomy is a minimally invasive procedure that uses radiofrequency energy to disrupt specific nerves responsible for transmitting pain signals. Radiofrequency neurotomy is also commonly called radiofrequency ablation (RFA) or radiofrequency denervation.
The procedure most often targets small sensory nerves called medial branch nerves, which carry pain signals from the facet joints of the spine. When these nerves are treated, pain signals from irritated or arthritic facet joints may be reduced.
Radiofrequency neurotomy does not remove damaged bone, repair a disc, or permanently eliminate the underlying cause of arthritis. Instead, it is designed to interrupt pain transmission from a specific source.
What Conditions Can Radiofrequency Neurotomy Treat?
Radiofrequency neurotomy can be used for certain types of chronic neck and back pain associated with the facet joints. Radiofrequency neurotomy may be considered when facet joint arthritis or degeneration is believed to be contributing to persistent pain.
Common conditions associated with facet-mediated pain include:
- Cervical facet joint pain in the neck
- Lumbar facet joint pain in the lower back
- Spinal arthritis
- Degenerative changes affecting the facet joints
- Chronic axial neck or back pain without a dominant nerve-root component
Not every type of back or neck pain responds to radiofrequency treatment. Pain caused primarily by a herniated disc, spinal stenosis, or nerve compression may require a different treatment approach.
How Does Radiofrequency Neurotomy Work?
Radiofrequency neurotomy works by using controlled heat generated by radiofrequency energy to interrupt the function of targeted sensory nerves.
During the procedure, a physician uses imaging guidance to carefully position a specialized needle near the nerve being treated. A small electrical stimulation test may be performed first to confirm the location and reduce the risk of affecting nearby motor nerves. Once the position is confirmed, radiofrequency energy is delivered through the needle.
The resulting thermal lesion disrupts the nerve’s ability to transmit pain signals. Because these nerves primarily carry sensory information from the targeted joints, the goal is to reduce pain without significantly affecting muscle strength or movement.
How Does a Doctor Determine Whether Radiofrequency Neurotomy Is Appropriate?
Determining whether radiofrequency neurotomy is appropriate typically begins with a medical history, physical examination, and review of imaging when indicated. Determining whether radiofrequency neurotomy is appropriate may also involve diagnostic medial branch blocks.
A medial branch block temporarily numbs the nerves believed to be responsible for facet joint pain. If the patient’s usual pain improves significantly during the expected period of the anesthetic’s effect, the results can provide evidence that those nerves are contributing to the pain.
Diagnostic blocks are important because radiofrequency treatment works best when the pain generator has been appropriately identified.
What Happens During the Procedure?
Radiofrequency neurotomy is generally performed as an outpatient procedure. Radiofrequency neurotomy typically involves several steps:
- The patient is positioned comfortably, and the treatment area is cleaned.
- Local anesthetic is used to numb the skin and tissues.
- Fluoroscopy or another imaging technique helps guide the treatment needle to the appropriate location.
- The physician may perform sensory and motor stimulation testing.
- Radiofrequency energy is delivered to the targeted nerve.
- The needle is removed, and the patient is monitored before going home.
The procedure itself is generally relatively brief, although the total appointment time can vary depending on the number and location of nerves being treated.
Is Radiofrequency Neurotomy Painful?
Radiofrequency neurotomy can involve some pressure, discomfort, or brief sensations during needle placement and treatment. Local anesthetic is used to minimize discomfort.
Some patients experience temporary soreness or increased pain around the treatment area after the procedure. These symptoms generally improve as the treated tissues recover. A physician can provide specific instructions for managing discomfort during recovery.
How Long Does It Take to Recover?
Recovery after radiofrequency neurotomy is usually relatively short. Recovery after radiofrequency neurotomy may involve temporary soreness at the treatment site, but many patients are able to resume normal light activities relatively quickly.
Patients are typically advised to follow their physician’s activity recommendations and avoid strenuous activity until they are cleared to resume it. The timing of pain relief can vary. Some patients notice improvement relatively soon, while others may require several days or weeks before the full benefit becomes apparent.
How Long Does Pain Relief From Radiofrequency Neurotomy Last?
Pain relief from radiofrequency neurotomy varies from person to person. Because the targeted nerves can eventually regenerate, the effects of treatment are not necessarily permanent.
For appropriately selected patients, pain relief can last for months or longer. If the same pain returns and the patient previously experienced meaningful relief, repeat radiofrequency treatment may sometimes be considered.
The duration of benefit depends on factors such as the underlying condition, the source of pain, nerve regeneration, and the patient’s overall health and activity level.
What Are the Risks of Radiofrequency Neurotomy?
Radiofrequency neurotomy is generally considered a low-risk minimally invasive procedure, but complications are possible. Potential risks include temporary soreness, bruising, bleeding, infection, numbness, or irritation of nearby nerves.
More serious complications are uncommon. Patients should discuss their medical history, medications, allergies, and any concerns with their physician before treatment.
Is Radiofrequency Neurotomy Right for Chronic Neck or Back Pain?
Radiofrequency neurotomy may be an option for patients with chronic neck or back pain that appears to originate from the facet joints and who have responded positively to appropriate diagnostic nerve blocks.
Radiofrequency neurotomy is not appropriate for every type of spinal pain. A thorough evaluation can help determine whether facet joint pain is contributing to symptoms and whether nerve-targeted treatment makes sense.
For patients with persistent neck or back pain, understanding the source of the pain is an important first step. When facet-mediated pain is confirmed, radiofrequency neurotomy can be one minimally invasive treatment option for reducing pain and improving function.