Injection Therapy
What is Injection Therapy?
Hyaluronic acid (HA) is a substance that occurs naturally in the human body. Inside joints it is a critical component of synovial fluid, the fluid that lubricates the joints and cushions the bones as we move. In joints affected by osteoarthritis, the quality and quantity of this fluid decreases, leading to stiffness, reduced mobility and pain.
Osteoarthritis was once described simply as wear and tear. What we now understand is that it affects the entire joint, bone, cartilage, ligaments and the tissues that line the joint. It typically affects people over 50, though it can present in younger people with a history of joint injuries.
Ostenil injections restore hyaluronic acid to the affected joint, improving lubrication and making movement feel smoother and more comfortable. They are not a cure, but can provide meaningful relief for several months, and many patients find that periodic injections allow them to maintain an active, fulfilling lifestyle with significantly less pain.
At Walnut Grove, injection therapy is delivered by our practitioners using Ostenil Plus, which requires just a single injection rather than the traditional course of three. For smaller joints such as the toes or thumbs, we use Ostenil Mini.
Walnut Grove is an approved Ostenil clinic, meaning our practitioners are certified to stock and administer Ostenil products in line with the manufacturer’s standards.


How Injection Therapy helps you
Our Injection Therapy Practitioners


Dr Jonathan Williams
What our patients say
Post-injection the knee feels smoother and there has been a reduction in pain. It's gone from being something that was always there to something I only notice sometimes. I am sustaining a good, consistent training load and am actually running pretty well.
Definitely worthwhile. Made things a lot easier.
Injection Therapy FAQs
Who is injection therapy suitable for?
Ostenil injections are primarily used to treat osteoarthritis, particularly in the knees, toes, fingers and thumbs. They are most appropriate for patients who have not found sufficient relief from other treatments such as physiotherapy, osteopathy or medication, or who want to reduce their reliance on pain relief. If you are not sure whether injection therapy is right for you, contact us at the clinic.
What does the injection involve?
Your practitioner will assess your joint and confirm that Ostenil is appropriate for you before proceeding. The injection itself is straightforward and is delivered directly into the affected joint. We use Ostenil Plus, which means a single injection is all that is required rather than a course of three, keeping the process as simple as possible.
How long does the effect last?
Results vary between individuals, but relief typically lasts for several months. Many patients find that periodic repeat injections maintain the benefit and allow them to stay active and comfortable over the longer term.
What is the difference between Ostenil and Ostenil Mini?
Ostenil Plus is used for larger joints such as the knee. Ostenil Mini is formulated for smaller joints including the big toe, thumb and finger joints. Your practitioner will advise which is appropriate for your specific joint and presentation.
Does injection therapy work alongside other treatments?
Yes, and it is often most effective when it does. The right exercise programme, load management and physiotherapy or osteopathic support can significantly extend the benefit of Ostenil injections and help you maintain an active lifestyle long term. Our team will work with you to make sure injection therapy fits into a coherent overall plan.
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