Injection Therapy for Knee Osteoarthritis
Specialist assessment and individually selected injection options for people whose knee osteoarthritis is affecting movement, activity and quality of life.
Make an injection enquiryUnderstanding Knee Osteoarthritis
Knee osteoarthritis is a condition affecting the whole joint. Changes may occur within the cartilage, underlying bone, joint lining, ligaments and surrounding muscles. These changes can contribute to pain, stiffness, swelling and reduced confidence in the knee.
Symptoms do not always correspond directly with the appearance of an X-ray. Some people have significant changes with relatively manageable symptoms, while others experience considerable pain and limitation despite less advanced imaging findings.
Treatment should therefore be based on how the knee is affecting you—not simply on the wording of an X-ray or MRI report.
When Might an Injection Be Appropriate?
Injection therapy may be considered when knee pain is significantly limiting walking, work, sleep, exercise or progress with rehabilitation.
It may also be helpful when symptoms remain troublesome despite appropriate exercise, activity modification, pain relief or physiotherapy, or when pain needs to be better controlled to allow rehabilitation to progress.
The most appropriate option depends on the nature of your symptoms, whether inflammation or swelling is present, the severity of the osteoarthritis, your medical history, previous treatment and what you hope to achieve.
An injection is not always required, and it is not automatically the best treatment for everyone with knee osteoarthritis.
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What Can an Injection Realistically Achieve?
An injection may reduce pain, improve movement and make everyday activity or rehabilitation more manageable. The degree and duration of benefit vary between individuals, and no injection can be guaranteed to work.
Injection therapy does not reverse osteoarthritis, regrow lost cartilage or permanently remove the underlying joint changes. Its role is to improve symptoms and function, ideally creating an opportunity to become stronger, more active and more confident in the knee.
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Injection Options for Knee Osteoarthritis
We offer four injection options. Each works differently and is considered according to the individual clinical presentation.
Corticosteroid Injection
Corticosteroid is an anti-inflammatory medicine. It may be particularly relevant when the knee is irritable, painful or swollen and inflammation appears to be contributing significantly to the symptoms.
It generally has a quicker onset than hyaluronic-acid injections, but any benefit may be relatively short term. It can be useful when pain is preventing sleep, everyday activity or meaningful participation in rehabilitation.
Repeated corticosteroid injection is not appropriate for every patient, and the potential benefits must be considered alongside the medical risks and possible effects of repeated exposure.
Durolane
Durolane is a single-injection hyaluronic-acid treatment designed to supplement the hyaluronic acid naturally present within the joint.
It may be considered when osteoarthritis is causing persistent pain and stiffness and a non-steroid option is preferred. It does not act primarily as an anti-inflammatory medicine, and any improvement may develop more gradually than with corticosteroid.
Response varies between patients. Some experience worthwhile and sustained improvement, while others gain limited or no benefit.
Ostenil Plus
Ostenil Plus is another single-injection hyaluronic-acid option. It contains sodium hyaluronate together with mannitol and may be considered for pain and restricted movement associated with knee osteoarthritis.
Like Durolane, it is a non-steroid treatment. It may suit someone seeking a hyaluronic-acid option when there is no particular need for the immediate anti-inflammatory action of corticosteroid.
The choice between Ostenil Plus and Durolane is individual and should not be based on the product name alone.
Cingal
Cingal combines hyaluronic acid with a corticosteroid in one injection. It is intended to provide the earlier anti-inflammatory action of corticosteroid together with the potential longer-lasting benefit of hyaluronic acid.
It may be considered when knee osteoarthritis is accompanied by a significant inflammatory or irritable component and both treatment approaches are clinically appropriate.
Because Cingal contains corticosteroid, the precautions and potential risks associated with steroid treatment still apply.
How Do the Options Differ?
Corticosteroid
May be most relevant for a swollen, hot or inflamed knee when quicker anti-inflammatory relief is the priority.
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Durolane & Ostenil Plus
Non-steroid options that may suit a more mechanically “grumpy” knee, with pain during walking, standing or stairs but no prominent inflammatory flare.
Cingal
Combines corticosteroid with hyaluronic acid and may be considered when both an inflammatory component and longer-term symptom management are relevant.
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How We Decide Which Option Is Appropriate
Your specialist will consider the pattern of your pain, stiffness and swelling; how the knee is affecting your life; examination findings; relevant medical conditions and medication; previous treatment; and any existing imaging.
An X-ray or MRI is not automatically required before every injection. If imaging would help clarify the diagnosis or influence treatment, your specialist can explain the most appropriate investigation and arrange referral where indicated.
The final decision is made with you following clinical assessment and a balanced discussion of the expected benefits, limitations, risks, alternatives and cost.
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Injection Therapy and Rehabilitation
An injection should not be viewed as a replacement for appropriate rehabilitation. Reducing pain may create a valuable opportunity to improve strength, movement, walking tolerance and confidence in the knee.
Your rehabilitation plan will be based on your current ability, goals and response to treatment. This may include progressive strengthening, activity modification and guidance about returning to walking, running, work or sport.
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Specialist Knee Assessment
Knee injections are provided by physiotherapists with defined specialist expertise in knee conditions. Assessment is not separated from treatment planning: the clinician recommending the injection understands the diagnosis, available alternatives and rehabilitation required afterwards.
If injection therapy is not the right option, we will explain why and help you identify the most appropriate next step. This may include rehabilitation, imaging, medication review, GP liaison or onward orthopaedic referral.
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Specialist Knee Osteoarthritis Injections Across the Solent Area
Assessment and injection therapy for knee osteoarthritis are available with our knee specialists in Gosport, Clanfield and Emsworth.
Victoria Smith provides specialist hip and knee care at our Gosport clinic, Suzanne Gray provides specialist foot, ankle and knee care in Clanfield, and Mike Saegert provides specialist spine, hip and knee care in Emsworth.
Your clinician will assess whether osteoarthritis is the most likely cause of your symptoms, whether an injection is appropriate and which option may be most relevant. Treatment will be considered alongside rehabilitation, imaging or onward referral where required.
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Frequently Asked Questions About Knee Injections
Do I need an X-ray before a knee injection?
Which injection is best for knee osteoarthritis?
Will an injection prevent me from needing knee replacement surgery?
How long will an injection last?
Can knee injections be repeated?
Can I have an injection if I take blood-thinning medication?
Not Sure Which Injection Is Right for You?
You do not need to choose an injection before contacting us. Tell us about your knee symptoms and how they are affecting you. You can complete our short form, telephone us or email us, and your enquiry will be reviewed by an appropriate knee specialist. Knee injections are available with our knee specialists in Gosport, Clanfield and Emsworth.
