Hip Osteoarthritis Treatment & Ultrasound-Guided Injection

Hip osteoarthritis (OA) gradually wears the joint, causing hip and groin pain, stiffness and difficulty walking, climbing stairs or putting on shoes and socks. There's currently no treatment that reverses it or reliably regrows cartilage, but that doesn't mean nothing can be done. The evidence supports a progressive approach: exercise and rehabilitation first, sensible pain relief, and image-guided injection in selected patients. For severe hip OA that keeps affecting your quality of life, a hip replacement remains the most effective treatment. My job is to work out where you are on that path and what will genuinely help.

What is hip osteoarthritis?

Osteoarthritis is a gradual change in the whole joint, loss of the smooth articular cartilage, narrowing of the joint space, bony spurs (osteophytes), changes in the underlying bone and, in some people, inflammation of the joint lining (synovitis). In the hip it typically causes:

• Pain in the groin, front of the thigh, or sometimes the buttock
• Stiffness, especially after resting
• Reduced hip movement and a shorter comfortable walking distance
• Difficulty with stairs, getting in and out of a car, or putting on shoes and socks
• Night pain in more advanced cases

How I assess your hip pain

Before talking about any injection, I want to answer four questions, using your history, a physical examination and, where it helps, diagnostic ultrasound of the joint and the surrounding structures:

1. Is the pain actually coming from the hip joint? Or from a tendon, bursa or the lumbar spine that mimics it.
2. How advanced is the osteoarthritis? Early OA is managed very differently from severe joint-space loss.
3. Is an injection actually indicated? Not everyone with hip OA needs one.
4. What is the realistic goal? Settling a flare, improving walking, getting rehab going, or deciding whether it's time for an orthopaedic opinion.

The aim isn't simply to offer an injection, it's to find the right treatment for the right patient at the right stage.

First-line treatment: exercise, weight and medication

For most people, treatment should start here, and for many, this is enough to stay comfortable and active for a long time.

Exercise & rehabilitation

Exercise is one of the most important treatments for hip OA. A 2023 systematic review and cumulative meta-analysis found exercise therapy improves both pain and physical function (Teirlinck et al., 2023). It usually includes hip and lower-limb strengthening, progressive resistance training, aerobic and mobility work, and adjusting the activities that repeatedly flare things up. The goal isn't to rest the joint completely, keeping your muscles strong and staying active protects function. NICE recommends tailored therapeutic exercise, and notes that a little discomfort while exercising doesn't mean you're damaging the joint (NICE NG226, 2022).

Evidence: good

Weight management

If you're carrying extra weight, gradual weight management is worth including, NICE lists it alongside exercise as a core part of OA care (NICE NG226, 2022). The direct trial evidence is stronger for knee OA than hip, but reducing load helps mobility, makes exercise easier, benefits general health, and can help if a hip replacement is eventually needed.

Evidence for hip specifically: limited, but recommended as part of overall OA care

Anti-inflammatory medication

Anti-inflammatory tablets (NSAIDs) can reduce OA pain and improve function. A large 2021 network meta-analysis of 192 trials and over 100,000 people with knee or hip OA found NSAIDs generally more effective than paracetamol or opioids (da Costa et al., 2021). They don't suit everyone, stomach, heart and kidney risks and your other medications all matter, so they're best used at the lowest effective dose for the shortest sensible time. Long-term opioids are not recommended for OA: the modest benefit doesn't justify the risks.

Evidence: good for symptom relief

Injections for hip osteoarthritis

An injection can be considered when pain stays significant despite appropriate conservative treatment. The hip is a deep joint surrounded by important nerves and vessels, so accurate placement matters, I perform all hip joint injections under real-time ultrasound guidance, so the needle and the surrounding anatomy are visible throughout. The evidence differs a lot between the different injectables, so I'll be straight with you about each one.

Corticosteroid injection

Corticosteroid has the clearest evidence for short-term symptom relief. The UK HIT randomised trial (Paskins et al., BMJ 2022) studied 199 people with painful hip OA and found that adding an ultrasound-guided steroid-and-local-anaesthetic injection to advice and education improved pain more than advice and education alone. The effect was strongest early, significant at 2 weeks and 2 months, but no longer significant by 6 months, and people with ultrasound signs of synovitis or an effusion seemed to benefit most. NICE supports considering a steroid injection when other options aren't working or suitable, or when short-term pain relief could help you get going with rehab, as long as you understand the benefit is usually short-lived (NICE NG226, 2022); the AAOS guideline reaches a similar conclusion (AAOS, 2023).

It's worth being clear: corticosteroid is a symptom-modifying treatment, it calms pain and inflammation, it does not regenerate cartilage. I'm most likely to suggest it when the hip is significantly painful, symptoms are interfering with walking or rehab, there's an inflammatory flare, or other pain relief isn't suitable.

Evidence: moderate for short-term pain relief

Hyaluronic acid

Hyaluronic acid (HA) is widely used in the knee, but the evidence in the hip is much less convincing. Studies often show people improve compared with before treatment, but that's not the same as beating a placebo injection, and OA pain naturally fluctuates while any injection carries a strong placebo effect. Meta-analyses of hip HA have generally failed to show a convincing, clinically important advantage over saline (Wu et al., 2017). Accordingly, NICE recommends not routinely offering intra-articular hyaluronan for OA, and AAOS gives a strong recommendation against HA for hip OA (NICE NG226, 2022; AAOS, 2023). This doesn't mean an individual can't improve after HA, it's just hard to know how much is the HA itself.

Evidence: limited / inconsistent superiority over placebo

PRP (platelet-rich plasma)

PRP is prepared from your own blood and contains concentrated platelets that release growth factors. It's an appealing idea, but the evidence in the hip is far less developed than in the knee. A 2022 review found PRP and HA produced similar short-term improvements (Belk et al., 2022), but many studies compared PRP with HA rather than a true placebo. The key study is a 2024 double-blind, placebo-controlled trial comparing three ultrasound-guided PRP injections with saline in moderate hip OA: it found no significant advantage of PRP over saline at six months for pain, function or quality of life (Topaloglu et al., 2024). That doesn't prove PRP never helps, but it can't currently be described as a proven cartilage-regenerating or disease-modifying treatment.

Evidence: emerging but uncertain

Stem cells & "regenerative" injections

Stem-cell and bone-marrow preparations are increasingly marketed for arthritis. At present there's insufficient high-quality evidence that they regenerate meaningful hip cartilage or change how the arthritis progresses. NICE considers stem-cell injections experimental and advises against using them for OA outside research (NICE NG226, 2022). Be cautious about any claim that an injection can "regrow" an arthritic hip.

Evidence: insufficient

Steroid vs hyaluronic acid vs PRP, at a glance

None of these injections has been shown to regenerate established cartilage loss in the human hip. So the decision to inject should be based on realistic goals, settling pain, enabling rehab, rather than promises of regeneration.

When should you consider a hip replacement?

A total hip replacement is worth considering when OA causes substantial, persistent pain or loss of function despite appropriate non-surgical treatment, for example ongoing pain affecting daily life, major restriction in walking, significant loss of movement, disturbed sleep, or a real dent in your quality of life. NICE recommends considering referral when symptoms substantially affect quality of life and non-surgical management is no longer working or suitable (NICE NG226, 2022).

The evidence here is now strong. The PROHIP randomised trial (Frydendal et al., New England Journal of Medicine 2024) compared hip replacement with resistance training in 109 patients with severe hip OA who already had an indication for surgery. At six months, the Oxford Hip Score improved by 15.9 points after replacement versus 4.5 points with resistance training, a clear difference in favour of surgery. For appropriately selected patients with severe symptomatic hip OA, replacement remains the treatment most likely to produce a substantial improvement. If your assessment points that way, I'll help arrange the right orthopaedic opinion.

Evidence for severe hip OA: strong

Frequently asked questions

References