Radiofrequency denervation overview

Overview

Radiofrequency denervation is a procedure that uses heat from radio waves to stop a nerve from sending pain signals. It is not surgery that cuts or removes tissue. The goal is to reduce chronic pain, often in the back or neck, from small joints called facet joints or from other specific nerve pathways. The effect is not permanent — nerves may grow back over months to years.

Radiofrequency denervation is a fairly common procedure for people with long-term neck or lower back pain from facet joints. It is less common than other treatments like exercise or injections.

It is usually offered to adults with chronic pain in the neck, mid back, or lower back that comes from the small joints between the bones of the spine (facet joints). It may also be used for pain in other areas, like the knee or head, when specific nerves are involved. Children rarely have this procedure.

Symptoms

Common symptoms

• Long-term aching or sharp pain in the neck, lower back, or sometimes the buttocks or legs (if a nerve root is involved).
• Pain that gets worse when you twist, bend backward, or stand for a long time.
• Pain that does not go away with rest or simple pain relievers.

Symptoms in children

• Radiofrequency denervation is rarely used in children. The symptoms that might lead to considering it would be similar to adults — chronic back or neck pain that has not improved with other treatments.

Symptoms in older adults

• Older adults may have pain from worn-out facet joints (osteoarthritis) that does not respond to usual treatments.
• They may be at higher risk of side effects from medicines, so this procedure may be an option.
• Older adults should discuss their overall health and any medicines they take before having the procedure.

Causes

Main causes

• Arthritis of the facet joints (the small joints between the bones of the spine).
• Injury or strain to the spine that causes long-term irritation of the nerves near the joints.
• Chronic pain from a specific nerve that does not respond to simpler treatments.

Risk factors

• Age — facet joint arthritis becomes more common with ageing.
• Repeated stress on the spine from heavy lifting or poor posture.
• Previous spine injury or surgery.
• Obesity, which puts extra strain on the spine.

When to see a doctor

See a doctor urgently if:

• You have sudden or severe back or neck pain along with numbness, weakness, or trouble controlling your bladder or bowels.
• You have a fever and back pain that is not getting better.

Book a routine appointment if:

• You have had back or neck pain for more than 6 weeks that does not improve with rest, gentle movement, or over-the-counter pain relief.
• Your pain limits your daily activities and you want to discuss other options like radiofrequency denervation.
• You have been offered this procedure and want to understand the risks and benefits.

Diagnosis

Before radiofrequency denervation, your doctor will try to find the exact source of your pain. They start with a physical exam and ask about your symptoms. Imaging like X-rays or MRI scans can show arthritis or other problems in the spine. The most important test is a diagnostic block — a small injection of numbing medicine near the nerve that is thought to cause the pain. If the pain goes away temporarily, that nerve is likely the culprit and radiofrequency denervation may help.

Tests that may be done

• Physical examination to check your spine and movements.
• MRI or CT scan to look at the bones and soft tissues of the spine.
• Diagnostic nerve blocks: an injection of local anaesthetic near the nerve to see if it stops the pain.
• Sometimes, ultrasound or X-ray guidance is used to place the needle precisely.

What to expect at your appointment

The process usually takes a few weeks. First you'll have one or more diagnostic blocks. If they give good pain relief, your doctor will discuss radiofrequency denervation. The procedure itself is done as an outpatient — you go home the same day. You may feel some soreness for a few days, but most people return to normal activities within a few days. Full effect may take up to a month.

Treatment

Radiofrequency denervation is one option for treating chronic pain from specific nerves, usually in the spine. It is not the first treatment your doctor will recommend. Before considering it, your doctor will suggest other treatments such as physical therapy, exercises, pain medicines, or steroid injections. If those do not give enough relief, and if a diagnostic nerve block showed the pain comes from a nerve, radiofrequency denervation may be an option. The procedure is done by a specialist (often a pain doctor or a radiologist) using a needle to deliver radio waves that heat and temporarily disable the nerve. The nerve can grow back over time, and the pain may return. The procedure can be repeated in some cases.

Self-care at home

• After the procedure, apply an ice pack to the area for 10–15 minutes several times a day if you have soreness.
• Avoid heavy lifting, twisting, or strenuous exercise for the first few days.
• Gentle walking is usually safe and can help recovery.
• Take pain relief as recommended by your doctor — avoid aspirin or ibuprofen if they tell you to.

Medical treatments

Before considering radiofrequency denervation, doctors often try other treatments such as physical therapy, exercise programmes, non-prescription pain relievers (like paracetamol or anti-inflammatory medicines), and sometimes steroid injections into the facet joints. Radiofrequency denervation is a more advanced treatment. Your doctor will explain the benefits, risks, and what to expect. There are also other nerve-related procedures, like pulsed radiofrequency or cryotherapy, but these are less common.

When is surgery considered?

Radiofrequency denervation is not a surgery. If your pain is due to other problems like a herniated disc or spinal stenosis, you may need a different type of surgery (like a discectomy or fusion). Discuss with your spine specialist which treatment is right for your condition.

Living with this condition

After radiofrequency denervation, you can usually return to your normal routine within a day or two. The pain relief starts gradually and may take a few weeks to feel the full effect. During that time, try to keep moving gently. You may still have some pain, but it should be less than before. If the pain returns months later, talk to your doctor about repeating the procedure or trying other options.

Lifestyle tips

• Stay active with low-impact exercise like walking, swimming, or cycling — this helps keep your back strong.
• Maintain a healthy weight to reduce strain on your spine.
• Use good posture when sitting, standing, and lifting.
• Consider physical therapy to strengthen the muscles around your spine.

Diet and exercise

A balanced diet with plenty of calcium and vitamin D supports bone health. Gentle stretching and core-strengthening exercises can help prevent future back problems. Avoid sudden, jarring movements. Your doctor or physiotherapist can give you a safe exercise plan.

Mental health and emotional wellbeing

Living with chronic pain can be stressful and may lead to anxiety or depression. Radiofrequency denervation can improve your mood by reducing pain, but it is not a cure. If you feel down or worried, talk to your doctor or a counsellor. Joining a support group for people with chronic pain can also help.

Prevention

You cannot always prevent the conditions that lead to chronic back or neck pain, such as arthritis or injury. But you can reduce your risk by staying physically active, maintaining a healthy weight, using good body mechanics when lifting, and avoiding prolonged sitting or poor posture. If you already have pain, early treatment and exercise may prevent it from becoming chronic.

Complications

If left untreated

• Chronic pain that does not get treated can lead to reduced mobility, muscle weakness, poor sleep, and depression.
• You may become less active, which can worsen arthritis and overall health.
• Pain can interfere with work, relationships, and daily life.

Long-term outlook

Radiofrequency denervation can provide meaningful pain relief for months to more than a year for many people. It is not a cure, and pain may return. However, it is a safe procedure when done by an experienced specialist. Serious complications are rare. If the pain returns, you can discuss repeating the procedure or trying other treatments. Many people find that this procedure helps them get back to activities they enjoy.

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