What the conservative pathway actually involves

Conservative management for hip osteoarthritis is a structured, active sequence — not a single treatment, and not simply a waiting period before surgery becomes an option.

NICE guideline NG226 (2022) sets out the core components: therapeutic exercise, patient education, weight management, and analgesia. These are first-line recommendations for all patients with hip OA, and they work in combination rather than in isolation. Exercise is consistently identified as the most important element — not because the others are unimportant, but because functional improvement depends on it.

In NHS practice, most people begin this pathway in primary or intermediate care. A GP will typically introduce lifestyle advice, appropriate analgesia, and NSAID use where suitable. Adult physiotherapy becomes the next step when relative rest and initial medication have not produced adequate improvement. At that stage, physiotherapy is considerably more than generic advice: it includes structured exercise programmes tailored to the individual's capacity, manual therapy techniques, guidance on walking aids, and formal patient education covering activity modification and self-management strategies. Where group-based delivery is commissioned — such as the CHAIN programme, which combines cycling with structured education — the evidence base supports this as a clinically valid alternative to one-to-one care.

The pathway is time-limited by design. Patients are expected to engage actively and work towards measurable functional goals, with progress reviewed at defined checkpoints. This matters because the transition to specialist care depends partly on demonstrating that conservative management has been genuinely attempted — not simply that time has passed.

How progress is measured during physiotherapy

Clinicians use a combination of validated scoring and practical functional markers to judge whether conservative management is achieving enough — and to decide when it is not.

The Oxford Hip Score (OHS) is the primary measure. Rated from 0 to 48, with higher scores reflecting better function, it captures pain levels and the ability to manage everyday tasks such as walking, dressing, and using stairs. The Hertfordshire and West Essex ICB Hip Pain Pathway (v7, April 2026) — one of the most detailed current NHS frameworks — anchors the referral decision directly to this score. A score of 20 or above indicates sufficient functional capacity to continue conservative care. A score below 20, combined with other criteria, signals that the conservative pathway may be reaching its limit. Patients scoring 30 or above are generally considered to have relatively preserved function and would not normally be referred to secondary care.

Weight management runs alongside the score as a co-criterion, not a separate hurdle. Before referral to orthopaedics is considered, the pathway requires either a BMI below 30 or documented evidence of at least 10% body weight loss within the previous six to nine months. The logic is optimisation: reducing load on the joint may improve both symptoms and surgical outcomes if surgery later becomes appropriate.

NICE Clinical Knowledge Summaries recommend a review point at around three months. If non-surgical management remains ineffective at six months, NHS ICB pathways formalise this as the trigger for escalation. Pain levels, walking distance, and daily activity capacity are all considered alongside the numerical score.

When the evidence says it's time to escalate

Referral to secondary care is not a single-criterion decision — all of the following must be satisfied simultaneously before NHS pathways indicate escalation to orthopaedics:

• No improvement despite genuine engagement with conservative management
• Oxford Hip Score below 20
• X-ray confirming moderate or severe OA — structural change, not symptoms alone
• BMI below 30, or documented ≥10% body weight loss within the previous six to nine months
• Patient has been advised to stop smoking

The X-ray requirement reflects a practical principle: pain without confirmed structural OA may have other causes, and joint replacement is indicated specifically for degenerative joint disease. The smoking criterion is a preparation step rather than a permanent barrier — smoking is associated with poorer surgical recovery and higher complication rates, so documenting the conversation is part of optimising timing.

NICE CKS adds a time-based reference point: orthopaedic referral should be considered when non-surgical management proves ineffective or unsuitable after three months. NICE NG226 (2022) frames the underlying rationale more broadly — the decision should be anchored to quality-of-life impact rather than numerical thresholds alone. A patient's lived experience of pain and functional loss is a legitimate trigger in its own right; the score is a guide, not a verdict.

Critically, NICE NG226 is explicit that patients must not be excluded from referral on the grounds of age, sex, smoking status, comorbidities, or obesity alone. The multi-criteria checklist above is about optimising the moment of referral and surgical outcomes — not about restricting who may access care.

In practice, the pathway is not always followed consistently. Data from the Netherlands suggest that roughly 40% of patients on joint-replacement waiting lists had not received exercise therapy beforehand — a figure that points to real-world gaps between guideline intent and delivery, rather than any problem with the framework itself.

Which specialist comes next — and why it depends on presentation

Reaching the referral threshold does not mean an automatic appointment with an orthopaedic surgeon. For many patients, that assumption is the first surprise.

The NHS England MSK Orthopaedic Referral Optimisation framework (October 2023) recommends community MSK triage as the standard first step into secondary care. This service assesses whether the patient is a realistic surgical candidate, orders or reviews baseline imaging, and directs them to whichever specialist pathway fits their clinical picture. It exists precisely to avoid routing non-surgical patients into busy surgical outpatient lists — and to ensure those who do need surgery arrive with the groundwork already done.

The three main onward routes

Orthopaedic surgery is appropriate where structural or end-stage OA is confirmed and conservative management has genuinely been exhausted. For suitable patients, the eventual intervention is total hip arthroplasty (THA) — described by The Lancet as 'the operation of the century' and one of the most cost-effective procedures developed in modern medicine, delivering meaningful gains in pain relief and physical function.

Rheumatology is indicated only when an inflammatory arthropathy is suspected rather than degenerative OA. The distinguishing features are specific: morning stiffness lasting more than 30 to 60 minutes, involvement of multiple joints, or elevated inflammatory markers such as ESR or CRP. Hip OA does not typically produce these signs; their presence suggests a different diagnosis that surgery would not address.

Chronic pain services become relevant when significant pain persists but surgery is not appropriate — whether because of comorbidities, patient preference, or the absence of suitable structural indications.

The same diagnosis of hip OA can lead to entirely different secondary-care pathways. Which door opens depends on the full clinical picture, not the label alone.

Symptoms that bypass the pathway entirely

Most people with hip osteoarthritis follow the staged pathway described above. A small number of presentations, however, require immediate action that cannot wait for physiotherapy or a review appointment.

• Sudden inability to bear weight — particularly following a fall or a sharp mechanical episode — needs same-day or emergency assessment to exclude fracture. Go to A&E.
• Rapid-onset severe pain with fever, joint swelling, and general illness may indicate septic arthritis (joint infection). This is a medical emergency. Call 999 or go to A&E immediately; delay risks permanent joint damage.
• Unexplained night pain, unintentional weight loss, persistent fatigue, or suspicious findings on a plain X-ray raise the possibility of an underlying malignancy. Contact your GP the same day for urgent onward investigation.
• Pre-existing inflammatory arthritis (rheumatoid arthritis, psoriatic arthritis, or similar conditions already diagnosed by a rheumatologist) sits outside the hip OA pathway; any flare or new hip symptoms should go back to that specialist team.

None of these presentations should be directed into conservative management or asked to wait. If in doubt about which category applies, seek medical advice the same day.

Finding the right specialist for your stage

Which specialist to see next is not something to settle in advance — the right answer depends on where you are in the pathway, and clinical assessment is what resolves it.

If conservative management has run its course without sufficient improvement, the most useful preparation before a GP conversation is to have a recent Oxford Hip Score and any available imaging to hand. A score below 20, alongside X-ray evidence of moderate or severe OA, forms the core of the referral case. Bringing that documented score — rather than a general account of ongoing pain — is likely to move the appointment forward more efficiently than symptom description alone.

If uncertainty about which specialist to approach is the main barrier, it is not a reason to postpone. Community MSK triage services are specifically designed to direct patients to the appropriate pathway; a straightforward question for your GP is whether one is commissioned in your local area.

Search MSK lists orthopaedic and MSK specialists across the UK who manage hip osteoarthritis — filter by region and specialty to find a clinician suited to your current stage of the pathway.