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Hyaluronic Acid Injections
Hyaluronic acid (HA) injections, sometimes called viscosupplementation, are used to ease pain and stiffness in arthritic joints of the foot and ankle, most often the big toe joint (hallux rigidus or limitus) and the ankle itself. The aim is to replenish something your joint already makes naturally but loses as arthritis progresses, and in doing so, help the joint move more freely with less pain.
What Hyaluronic Acid Is, and Why Arthritic Joints Lose It
Hyaluronic acid is a natural component of the fluid inside every joint, giving it lubrication and shock-absorbing thickness. In an arthritic joint, ongoing low-grade inflammation breaks this fluid down and reduces its viscosity, which is part of why arthritic joints feel stiff, gritty, and sore rather than smooth. As the joint becomes stiffer and more irritated, the inflammation tends to worsen, which breaks down more HA. It’s a cycle that tends to make arthritis progressively more limiting if left unaddressed.
An HA injection (we use Ostenil, a well-established product in UK musculoskeletal practice) supplements the joint’s natural fluid directly, aiming to interrupt that cycle rather than just mask the pain.
What the Evidence Actually Shows
We’d rather give you an accurate picture than an overstated one. Hyaluronic acid injections are well studied and widely used for knee osteoarthritis, where the evidence base is substantial. For the foot and ankle specifically, the research is more limited: some studies show meaningful improvement in pain and function, particularly when HA is combined with a structured rehabilitation programme, while others show more modest benefit over placebo, especially from a single injection alone. Current clinical guidance treats HA in the foot and ankle as a reasonable, low-risk option worth trying for suitable patients, rather than a guaranteed fix.
In practice, we often combine HA with a corticosteroid in the same course of treatment. The steroid addresses active inflammation quickly, while the HA aims to support joint lubrication over a longer period, a combination many patients find gives faster initial relief than HA alone.
Is It Right for You?
HA injections tend to suit people with:
- Diagnosed osteoarthritis in the big toe joint (hallux rigidus/limitus) or ankle
- Joint pain and stiffness that limits walking, standing, or activity
- A preference to try a non-surgical option before considering joint surgery or fusion
- Realistic expectations that this manages symptoms rather than reverses joint damage
It’s less suitable as a first-line treatment for early, mild joint stiffness, where orthoses or a biomechanical assessment to address how you’re loading the joint may help just as much with far less intervention. We’ll always assess the joint properly, often using our onsite diagnostic ultrasound, before recommending injection over other options.
What to Expect
At your assessment. We’ll examine the joint, review your history, and confirm through examination (and ultrasound where useful) that the joint itself, rather than a soft tissue or biomechanical problem, is the main driver of your pain.
During the injection. The injection takes only a few minutes. You may feel pressure or brief discomfort as the needle enters the joint space, and some clinics, including ours, use ultrasound guidance for precision in smaller or harder-to-access joints such as the ankle.
Immediately afterwards. Most people can walk out and resume normal daily activity the same day. We’ll usually recommend avoiding high-impact activity for 24 to 48 hours to let the joint settle.
Risks and Limitations
- Temporary swelling or discomfort at the injection site, usually settling within a day or two
- Rare infection, minimised through sterile technique
- Rare allergic reaction
- Variable response: not everyone experiences meaningful benefit, and response can't be guaranteed in advance
- Not a cure: HA manages symptoms and supports joint function, but it doesn't reverse existing joint damage, and most patients need a repeat course over time rather than a single injection for life
We’ll always be upfront if we think your joint has progressed to a point where injection is unlikely to give you much benefit, rather than recommend it by default.
Why Choose Active Health for Hyaluronic Acid Injections
Injection therapy at Active Health is delivered by HCPC-registered podiatrists under the clinical governance of Dr David Cashley (PhD, FFPM RCPS Glasgow, MRCPod, HCPC CH13665), our Clinical Director of over 30 years, who holds an honorary research fellowship with the University of Dundee Medical School. Our onsite diagnostic ultrasound and computerised gait analysis let us confirm the joint is actually the source of your symptoms before recommending injection, which matters given the mixed evidence base for this treatment in the foot and ankle.
Hyaluronic Acid Injection Cost
Pricing depends on the joint being treated and whether it’s combined with a corticosteroid in the same course. See our pricing page for current fees, or call reception to confirm cost for your specific joint and condition.
FAQs
Frequently Asked Questions
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What are hyaluronic acid injections used for in the foot?
They’re mainly used for osteoarthritis in the big toe joint (hallux rigidus/limitus) and the ankle, to ease pain and stiffness and improve joint movement.
How do hyaluronic acid injections work for joint pain?
They replenish the natural lubricating fluid inside the joint, which breaks down as arthritis progresses. This aims to reduce friction and irritation within the joint and interrupt the cycle of inflammation and stiffness.
Is there good evidence that hyaluronic acid injections work in the foot and ankle?
The evidence is more established for the knee than for the foot and ankle. Foot and ankle studies show mixed but generally positive results, particularly when combined with rehabilitation, though a single injection alone shows more modest benefit in some trials. We’ll discuss what’s realistic for your specific joint before you decide.
What's the difference between hyaluronic acid and steroid injections?
Corticosteroids reduce active inflammation quickly but don’t lubricate the joint. Hyaluronic acid supports joint lubrication over a longer period but doesn’t have the same rapid anti-inflammatory effect. We sometimes combine the two for faster relief alongside longer-term support.
Are hyaluronic acid injections painful?
Most patients feel pressure or brief discomfort as the needle enters the joint, rather than significant pain. The injection itself takes only a few minutes.
How long does the benefit of a hyaluronic acid injection last?
This varies by joint and individual. Some patients notice benefits for several months; others find the effect shorter-lived or more modest. We can’t guarantee a specific duration.
How many injections will I need?
Some patients respond to a single injection, others need a short course, and many need repeat treatment periodically as arthritis is a progressive condition. We’ll agree to a plan based on your response rather than a fixed schedule upfront.
Are there any risks or side effects?
The main risks are temporary swelling or discomfort at the injection site, and rarely, infection or allergic reaction. HA is generally very well tolerated.
Can hyaluronic acid injections delay or avoid foot surgery?
For some patients with joint osteoarthritis, yes, by managing symptoms well enough to postpone or avoid surgical options such as joint fusion. This isn’t guaranteed and depends on how advanced the arthritis is.
How much do hyaluronic acid injections cost in Dundee?
Cost depends on the joint treated and whether it’s combined with a steroid injection. See our pricing page for current fees.