Treatment information
Understanding your pathway
What is the treatment?
Articular branches of the femoral and obturator nerves contribute sensation to the front of the hip joint. A targeted block seeks to affect these branches. It is different from a broad femoral block used for surgical anaesthesia and from an injection directly inside the hip joint. [1][2][3]
Who may be considered?
A specialist may discuss a nerve-directed option for selected hip pain after establishing the likely cause and considering rehabilitation, medicines and orthopaedic care. Evidence varies by technique. Findings from a surgical nerve block or a PENG block should not be treated as proof of lasting benefit from every articular nerve procedure. [1][2][3]
Assessment, preparation and consent
Before deciding, discuss your diagnosis, previous treatment, medicines and relevant health conditions. Tell the clinician about allergies, infection, blood-thinning medicines, diabetes and possible pregnancy. Do not stop prescribed medicines yourself. Ask what alternatives are available, including not having a procedure, and allow time to consider the benefits, uncertainty and risks that matter to you. [4]
What happens during treatment?
The clinician identifies the intended branches and uses an appropriate guided approach near the hip. Local anaesthetic may be used to assess temporary response. The procedure should specify whether it targets individual articular branches or uses another technique, and how the result would inform further care. [1][2][3]
Risks and safety considerations
Risks include bleeding, infection, medication reaction and injury to nearby nerves or blood vessels. Local anaesthetic can spread to motor nerves, producing temporary leg weakness and fall risk. A sensory-targeted technique should not be described as guaranteeing preservation of strength; safe mobilisation needs assessment afterwards. [1][2][3]
Recovery and when to seek help
Follow the written instructions for transport, supervision, medicines, activity and driving. Recovery depends on the treatment and your health, so a fixed return-to-work date cannot be promised. Ask who to contact outside clinic hours. Seek urgent assessment for fever with worsening pain, new weakness or other unexpected neurological symptoms. Call 000 for breathing difficulty, collapse or another medical emergency. [5][4]
Expected benefit and limitations
A block does not repair the hip joint or establish that later radiofrequency treatment will succeed. Benefit may be temporary or absent. Agree a practical outcome such as walking tolerance and consider the limits of evidence for the exact technique. Further intervention requires a separate risk-benefit discussion. [1][2][3]
Follow-up and rehabilitation
Before treatment, choose a practical goal such as walking, sleep or a daily task. Record changes in that activity, pain and any adverse effects, then discuss them at follow-up. Ask what degree of change would justify further treatment and what would lead to stopping or changing the plan. Rehabilitation and self-management may remain part of care even if symptoms improve. [4][6]
Questions to bring to your appointment
Ask which structure is being targeted, why this approach is being considered and how strong the evidence is for your diagnosis. Clarify costs, the planned review date and any practical help you may need at home. Bring previous reports and your medicine list so the discussion can address your circumstances rather than a generic treatment pathway.
Sources and further reading
Sources support the statements cited above. Overseas guidance may describe different services or eligibility rules. A procedure leaflet explains a technique and its risks; it does not establish that the treatment is effective for every condition.
- PENG block versus intra-articular corticosteroid in hip osteoarthritis — Korean Journal of Pain
- Nerve blocks for leg, foot or ankle surgery — NHS Fife
- Hip pain — Healthdirect Australia
- Procedures in pain medicine clinical care standard — Faculty of Pain Medicine, ANZCA
- Dorsal root ganglion / nerve root block / transforaminal injection — Hull University Teaching Hospitals NHS Trust
- Options for chronic pain management — Healthdirect Australia