Facet medial branch pathway
This pathway is considered for selected localised axial back or neck pain where the facet-joint nerve supply appears clinically relevant and diagnostic blocks support the target.
Consultant-led private assessment
Radiofrequency Ablation and Denervation
Assessment-led treatment for selected facet-related back or neck pain, considered after the clinical picture and response to diagnostic medial branch blocks support the target.
Assessment and diagnostic context before treatment
Self-pay and insured private pathways
Realistic discussion of benefit and uncertainty
Private practice in Colchester and Ipswich
Dr Shamim Haider
Consultant in Pain Medicine and Anaesthesia. Careful selection, image-guided treatment and clear discussion of alternatives and limitations.
About Dr HaiderNew or rapidly worsening neurological symptoms need urgent assessment
This planned private outpatient service is not an emergency service. New bladder or bowel disturbance, numbness around the genitals or bottom, rapidly worsening limb weakness, or severe symptoms after significant injury require an appropriate urgent NHS or emergency route.
Understanding the treatment
What is radiofrequency denervation?
Radiofrequency denervation uses controlled thermal energy at the tip of a specially positioned needle to interrupt selected small sensory nerves. For spinal facet-joint pain, the usual targets are medial branch nerves that carry pain signals from the facet joints.
Radiofrequency ablation, radiofrequency lesioning, facet denervation and rhizolysis are terms often used for this conventional thermal procedure. The joint itself is not removed, and the treatment does not reverse spinal wear or degeneration.
This page focuses on facet medial branch denervation for selected back or neck pain. Pulsed radiofrequency and treatment of peripheral or genicular nerves are different procedures with different selection criteria.
It is not a general treatment for all back pain
Back and neck pain can arise from discs, nerves, muscles, joints or several structures together. A scan cannot by itself prove that facet medial branch nerves are the important pain source.
Selection before treatment
The medial branch block pathway
A diagnostic medial branch block places local anaesthetic close to the small nerves supplying selected facet joints. The purpose is to assess how much the usual pain changes while the anaesthetic is active.
Pain is commonly compared before and after the block during relevant movements or normal activities. A meaningful temporary improvement supports—but does not prove—that denervation of those nerves may be worth considering.
NICE states that radiofrequency denervation for chronic low-back pain should only be performed after a positive response to a diagnostic medial branch block. The detailed threshold and whether further confirmation is needed depend on the clinical and commissioning or insurer pathway.
The sequence matters
- 1Assess the pain pattern, function and previous treatment
- 2Decide whether medial branch nerves are a plausible target
- 3Perform an image-guided diagnostic block where appropriate
- 4Record pain and functional change during the expected test period
- 5Discuss denervation only if the overall response supports it
When it may be considered
Who might be suitable?
- Pain is mainly localised to the back or neck rather than dominated by nerve-root symptoms
- Symptoms have remained troublesome despite appropriate non-surgical treatment
- Assessment suggests pain may arise from structures supplied by the medial branch nerves
- A diagnostic medial branch block has produced a meaningful temporary improvement
- The possible benefit, uncertainty, alternatives and risks have been discussed
- The procedure fits an agreed rehabilitation and follow-up plan
A positive block is not the whole decision
The degree and timing of relief, the activities tested, competing pain sources, general health, expectations and rehabilitation plan all need interpretation before proceeding.
Different pain pathways
Facet-related pain is not the same as sciatica
Sciatica or nerve-root pathway
Leg-dominant radicular pain from nerve-root irritation follows a different assessment. Facet medial branch denervation does not decompress a nerve root or treat a disc prolapse.
Read about sciatica and nerve-root injectionsRelated radiofrequency pathways
The treatment target determines the pathway
Sacroiliac-joint radiofrequency
Radiofrequency treatment around the sacroiliac joint targets a different nerve supply from facet medial branch denervation. It belongs within the sacroiliac-joint assessment pathway, alongside examination, image-guided diagnostic or therapeutic injections and discussion of other options.
A dedicated sacroiliac-joint page will explain that pathway without implying that a facet medial branch block selects the sacroiliac target.
Pulsed radiofrequency of a nerve root or peripheral nerve
Pulsed radiofrequency uses a different energy pattern and treatment rationale from conventional thermal facet denervation. It may be considered for selected nerve-root or peripheral-nerve pain after specialist reassessment, but it is not an automatic next step simply because an injection has not helped.
View the sciatica and nerve-root pathwayImage-guided procedure
What happens during radiofrequency denervation?
- 1The intended benefit, alternatives, uncertainty and material risks are discussed before consent.
- 2Medicines, allergies, infection risk, relevant health conditions and pregnancy possibility are checked.
- 3You are positioned so the target can be visualised safely and the skin is cleaned.
- 4Local anaesthetic is used; this can sting briefly and pressure or pushing sensations may occur.
- 5X-ray or fluoroscopic guidance is used to position specialised needles beside the intended medial branch nerves.
- 6Electrical testing may be used to help confirm positioning; tingling or muscle twitching may be felt.
- 7Further local anaesthetic is given before controlled radiofrequency energy treats the selected nerves.
- 8You are monitored afterwards and given individual discharge and follow-up instructions.
Preparation is individual
Instructions about food, driving, escorts, anticoagulant or antiplatelet medicines, diabetes treatment and infection must come from the treating hospital and clinical team. Do not stop prescribed medicines without individual medical advice. Tell the team if you are planning to fly or travel abroad within the following week.
Local anaesthetic and sedation
Many procedures are performed with local anaesthetic. Sedation may be discussed for selected patients, but it is not required or suitable for everyone. Additional fasting, escort, recovery and driving rules may apply.
Realistic expectations
Benefit may be delayed, partial or absent
Pain can be worse before it improves
Local soreness, aching, numbness, pins and needles or a sunburn-like sensitivity may occur. Some people experience a temporary flare lasting days or several weeks before any benefit becomes clear.
The nerves can recover over time
Some people obtain worthwhile longer-term reduction in pain; others obtain limited or no benefit. Treated nerves can recover and pain can return. Repeat treatment is a reassessment decision, not an automatic next step.
Use any improvement constructively
Where pain reduces, the aim is usually to support gradual movement, exercise, rehabilitation, sleep and daily function. Denervation does not restore the spine to a pre-degenerative state or remove every contributor to persistent pain.
Balanced consent
Risks and limitations
No procedure is risk-free. The exact risk profile depends on the spinal region, levels treated, technique and your individual health.
Possible problems include temporary discomfort or increased pain, bruising or bleeding, infection, local numbness, altered sensation or a sunburn-like feeling. Temporary weakness can occur if local anaesthetic spreads. Rare but potentially serious complications include unintended nerve injury or other neurological harm. Thoracic procedures carry a rare risk of pneumothorax.
The individual consent discussion considers blood-thinning medicines, infection, allergies, pregnancy possibility, implanted devices, previous reactions, relevant medical conditions and the precise procedure being proposed. This page is general information and does not replace procedure-specific consent or hospital instructions.
Private appointments
Consultant-led care in Colchester and Ipswich
Self-pay and insured patients are welcome. A GP or specialist referral, relevant scan report and information about previous diagnostic blocks are helpful where available. Insured patients should confirm referral and authorisation requirements before treatment.
Oaks Hospital, Colchester
120 Mile End Road, Colchester, Essex CO4 5XR
Nuffield Health Ipswich Hospital
Foxhall Road, Ipswich, Suffolk IP4 5SW
Read about private pain care in IpswichFrequently asked questions
Questions about radiofrequency denervation
In this spinal facet-joint context, the terms are commonly used for the same thermal procedure. Other names include radiofrequency lesioning, facet denervation and rhizolysis. This page focuses on conventional thermal treatment of medial branch nerves, not every form of radiofrequency treatment.
For chronic low-back pain, NICE states that radiofrequency denervation should only be performed after a positive response to a diagnostic medial branch block. The block provides short-term information about whether the targeted medial branch nerves are likely to be carrying an important part of the pain.
No. A convincing temporary response supports the treatment rationale but does not guarantee a particular result or duration. Pain can have more than one source, and technical and individual factors also affect outcome.
Facet medial branch denervation is not a treatment for a compressed spinal nerve or typical sciatica. Sciatica and nerve-root injections follow a different assessment and treatment pathway.
No. The treatment targets small medial branch nerves that carry pain signals from selected facet joints. It does not remove the joint or reverse arthritic or degenerative change in the spine.
Response is variable. Pain can initially be more sore, and improvement may take days or several weeks. Benefit may be substantial, limited, temporary or absent. The treated nerves can recover over time, so no fixed duration can be promised.
It may be considered again in selected patients if meaningful benefit later wears off, but recurrence should trigger reassessment rather than automatic repetition.
Many procedures are performed with local anaesthetic. Sedation may be discussed in selected circumstances, but it is not required or suitable for everyone and can affect preparation, escort and driving instructions. The treating hospital will provide individual advice.
Do not stop anticoagulant or antiplatelet medication without individual instructions from the clinical team responsible for the procedure. The decision depends on the medicine, why you take it and the procedural bleeding risk.
Further information
Reliable UK patient information
Faculty of Pain Medicine patient leaflets
These UK leaflets explain radiofrequency lesioning and the medial branch block used to help select an appropriate target.
NICE: Low back pain and sciatica
UK recommendations on assessment, medial branch blocks and radiofrequency denervation for chronic low-back pain.
Visit sourceNICE quality statement
A patient-facing explanation of the selection criteria and positive diagnostic block requirement.
Visit sourceNHS: Back pain
General information about back pain, self-care and warning symptoms requiring urgent assessment.
Visit sourceClinical information on this page is presented by Dr Shamim Haider, Consultant in Pain Medicine and Anaesthesia. It is general information, not a diagnosis or personalised treatment recommendation.
Book a private assessment
The first step is a consultation to decide whether the pain pattern supports a facet medial branch pathway, whether further diagnostic assessment is needed and whether radiofrequency denervation is a reasonable option.
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