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

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.

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.

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

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.

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.

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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