Supports Joint Lubrication
OSTENIL PLUS contains hyaluronic acid, a natural part of joint fluid. The aim is to support lubrication in a suitable osteoarthritis-affected joint.
A non-steroid hyaluronic acid injection considered for suitable osteoarthritis-related joint pain.
Ostenil® Plus is a single-injection viscosupplementation treatment containing hyaluronic acid with mannitol. Hyaluronic acid is a natural part of healthy joint fluid, and in osteoarthritis the aim of the injection is to support joint lubrication and ease pain in suitable patients. Where Durolane sits specifically within the knee joint as a longer-acting single shot, Ostenil Plus is a versatile option also considered for shoulder, hip, thumb-base and other osteoarthritic joints after careful assessment — often preferred by patients who would rather discuss a non-steroid route first.
From £280
Includes consultation, the procedure itself, ultrasound guidance where appropriate and aftercare. Anterior hip injection is £600.

Osteoarthritis can quietly make ordinary movement feel harder than it should. Stiffness, swelling and joint pain can affect walking, stairs, sleep, work and exercise. Many patients we see have already tried weight management, exercise, pain relief or physiotherapy before they ask about injections.
If you have knee osteoarthritis or another suitable arthritic joint, the consultation starts by understanding what is driving your pain. We look at your history, examination, previous treatments, activity goals and any imaging already available before suggesting Ostenil Plus or another route.

Hyaluronic acid is found naturally in joint fluid, where it helps the surfaces glide smoothly. In osteoarthritis, the joint environment changes and movement can become painful or stiff. An Ostenil Plus injection introduces additional hyaluronic acid directly into the joint, supporting lubrication and cushioning in selected patients.
The mannitol component is included to help protect the hyaluronic acid from oxidative breakdown, which may support its duration of effect. Response and how long the benefit lasts vary between patients.
We use ultrasound guidance where appropriate so the clinician can see the joint during the procedure and support accurate placement. Your consultation explains how Ostenil Plus compares with steroid injection, Arthrosamid, PRF, physiotherapy and onward referral so you can choose with a clear head.
Ostenil Plus is more versatile than knee-only hyaluronic acid preparations and is considered across the major synovial joints affected by osteoarthritis. Suitability is decided at consultation after a full musculoskeletal assessment.
For the right diagnosis, hyaluronic acid offers a different approach to joint pain — working with the joint's natural chemistry rather than suppressing inflammation alone.
OSTENIL PLUS contains hyaluronic acid, a natural part of joint fluid. The aim is to support lubrication in a suitable osteoarthritis-affected joint.
Some patients notice less pain or stiffness after hyaluronic acid injection. Response and duration vary, and suitability is checked before treatment.
Ostenil Plus may suit patients who want to discuss a non-steroid injection option for osteoarthritis-related symptoms. Risks and alternatives are covered in consultation.
Ostenil Plus is a mannitol-stabilised hyaluronic acid formulation. The mannitol is included as an antioxidant to help protect the hyaluronic acid from oxidative breakdown inside the joint, which has been linked to a longer duration of effect compared with standard hyaluronic acid preparations.
In published cohort and observational studies of mannitol-stabilised hyaluronic acid for knee osteoarthritis,around 70 to 80 percent of suitable patients report meaningful improvements in pain and joint function at six months. Reductions in WOMAC pain scores of roughly 40 to 50 percent are commonly reported, and many patients continue to feel the benefit well beyond the six-month mark.
Individual response varies, and Ostenil Plus is not presented as a cure. For the right diagnosis, what it offers is a non-steroid route to several months of meaningful symptom relief from a single injection, delivered with ultrasound guidance where appropriate.
The three injection routes we most often discuss for arthritic joint pain are not interchangeable — each suits a different point in the journey. Your consultation tailors the recommendation to your diagnosis, previous treatment and goals.
| Treatment | Primary mechanism | Best suited for | Typical duration |
|---|---|---|---|
| Steroid injection | A potent anti-inflammatory that settles acute inflammation in joints, bursae and tendon sheaths. | Inflammatory flares, frozen shoulder, bursitis, tendon sheath problems, acute osteoarthritis pain. | Variable — often several months in suitable patients, depending on the joint and diagnosis. |
| Ostenil Plus (hyaluronic acid) | Viscosupplementation. Supports joint lubrication and cushioning, working with rather than suppressing inflammation. | Mild-to-moderate chronic osteoarthritis where joint preservation and a non-steroid route are priorities. | Several months in suitable patients; individual response varies. |
| Arthrosamid (iPAAG hydrogel) | A non-biodegradable polyacrylamide hydrogel that integrates with the inner lining of the knee joint capsule. | Advanced knee osteoarthritis where conservative options and shorter-acting injections have been exhausted. | Long-lasting in suitable responders; clinical follow-up has shown sustained benefit over several years in selected patients. |
Individual response and duration of benefit vary between patients. This table is a guide, not a substitute for clinical assessment.
We know it can feel difficult to book a procedure when you are not sure what will happen next.
Your clinician will explain suitability, risks, recovery and aftercare before treatment goes ahead.

Choose a consultation online or speak to the clinic if you are not sure which service fits. Most appointments are available within seven days.

An in-person review with Dr Mugerwa: he will listen to your story, examine the area and walk through what is going on.

An honest recommendation. If treatment is suitable we will explain the options, risks and likely outcomes. If it is not, we will tell you and refer you on.

The procedure itself, followed by tailored aftercare guidance and a clear contact route if anything changes during recovery.
“Can't have this injection on the NHS so I'm so happy I can receive it at the Clinic. Easy to get an appointment, excellent facilities, professional and caring doctor. I highly recommend.”
The questions patients most often ask about Ostenil Plus — including how it compares with steroid injection and Durolane, what to expect from a single shot, and whether it's right for your particular joint.
Response and duration of benefit vary between patients. Many people report easier movement and reduced stiffness over the first two to three weeks, with peak benefit commonly described around week six. A single Ostenil Plus injection often provides several months of symptom relief in suitable patients, depending on factors such as the severity of osteoarthritis, daily activity and individual response.
No. Ostenil Plus is a hyaluronic acid (with mannitol) viscosupplementation. Hyaluronic acid is a natural component of healthy joint fluid, and the injection is intended to support joint lubrication rather than suppress inflammation in the way a steroid does. For some patients — particularly those who would rather avoid corticosteroids — this is the preferred route.
Both are single-injection hyaluronic acid treatments, but they are formulated differently and used in different situations. Ostenil Plus is the more versatile option we use across the knee, shoulder, hip, thumb-base and other osteoarthritic joints. Durolane is a more cross-linked formulation we consider specifically for knee osteoarthritis where a longer-acting single shot is the priority. Your consultation explains which is the better fit for your particular joint and pattern of pain.
Mannitol is included as an antioxidant. Its role is to help protect the hyaluronic acid from oxidative breakdown inside the joint, which has been associated in published studies with a longer duration of effect compared with standard hyaluronic acid preparations. It is not a separate active drug — its purpose is to help the hyaluronic acid last longer in the joint space.
Yes — Ostenil Plus does not affect blood glucose, which is one of the reasons patients with diabetes often prefer a hyaluronic acid route over a steroid injection. We still complete a full clinical assessment to confirm suitability before treatment.
Side effects are uncommon and usually mild. The most frequently reported are a short-lived sensation of fullness, mild ache or stiffness in the joint for 24–48 hours after the injection as the gel settles. As with any injection, there is a small risk of bruising or infection at the site, which we discuss with you before treatment.
We treat the injection as one part of a wider plan rather than the whole answer. For most patients with osteoarthritis, ongoing physiotherapy, exercise, weight management and activity adjustment remain important to maintain joint function. Ostenil Plus often creates the pain-free window that makes engaging properly with these easier.