Question 1

What is Arthrosamid and how does it work?

Accepted Answer

Arthrosamid® is a non-biodegradable polyacrylamide hydrogel injected directly into the knee joint under ultrasound guidance. Once injected, it integrates with the synovial tissue lining the joint, thickening the synovial fluid and providing cushioning and lubrication. Unlike steroid or hyaluronic acid injections, Arthrosamid® is not broken down or absorbed by the body, which allows it to remain in the joint and provide longer-lasting relief from the pain and stiffness of knee osteoarthritis.

Question 2

How long does Arthrosamid last?

Accepted Answer

Clinical studies have demonstrated that a single Arthrosamid® injection can provide clinically significant and sustained relief from knee osteoarthritis pain for up to three to four years post-treatment. Most patients begin to notice a meaningful reduction in pain within four weeks of the injection. Because Arthrosamid® is non-biodegradable, its effects last considerably longer than steroid injections or hyaluronic acid injections, which typically provide relief for weeks to months.

Question 3

Am I suitable for Arthrosamid treatment?

Accepted Answer

Arthrosamid® may be suitable for you if you have knee osteoarthritis, have tried other treatments such as physiotherapy, painkillers, or previous injections without adequate relief, and are looking for a longer-term non-surgical solution — particularly if you wish to delay or avoid knee replacement surgery. Mr Kosuge will assess your suitability at a consultation, which will include a review of your symptoms, medical history, and X-ray findings. Arthrosamid® is not suitable for patients with active infection near the injection site, certain autoimmune conditions, or those who have had knee arthroscopy within the previous six months.

Question 4

What does the Arthrosamid procedure involve and how long does it take?

Accepted Answer

Arthrosamid® is administered as a single outpatient injection performed under ultrasound guidance to ensure precise placement within the knee joint. Before the procedure, an oral antibiotic is taken to minimise the risk of infection, and a local anaesthetic is applied to numb the skin around the injection site. The procedure itself typically takes 20 to 30 minutes. Most patients are able to return home the same day and resume light activities within a few days, though strenuous activity should be avoided for a short period after treatment.

Question 5

How does Arthrosamid compare to steroid and hyaluronic acid injections?

Accepted Answer

Arthrosamid® differs from steroid (corticosteroid) and hyaluronic acid injections in several important ways. Steroid injections work by reducing inflammation and typically provide relief lasting weeks to a few months, but may have diminishing returns with repeated use. Hyaluronic acid injections supplement the joint fluid and may provide relief for several months. Arthrosamid® is non-biodegradable — it is not absorbed by the body — and integrates with the joint lining, providing cushioning that clinical studies suggest can be sustained for up to three to four years from a single injection. Mr Kosuge will advise which injection option is most appropriate for your individual situation.

Question 6

Where is Arthrosamid available in Essex and Hertfordshire?

Accepted Answer

Mr Dennis Kosuge is the first surgeon to be trained and approved to provide Arthrosamid® treatment at The Rivers Hospital, Sawbridgeworth, Hertfordshire. He offers Arthrosamid® injection to patients from across West Essex and East Hertfordshire, including Harlow, Bishop's Stortford, Epping, Hertford, and Chelmsford. To find out whether Arthrosamid® is suitable for you, please book a consultation by calling 01279 602675 or using the online booking link on this website.

Question 7

Can Arthrosamid help me avoid knee replacement surgery?

Accepted Answer

Arthrosamid® is described in clinical research as an effective, long-acting, and safe non-surgical treatment that may postpone the need for knee replacement surgery. It is particularly beneficial for patients who wish to delay surgery, those who are not yet suitable candidates for knee replacement, or those who want to avoid the recovery time associated with a surgical procedure. Whilst Arthrosamid® is not a cure for osteoarthritis and will not reverse the underlying condition, it can provide meaningful and sustained symptomatic relief. Mr Kosuge will discuss your individual circumstances and whether Arthrosamid® is likely to be of benefit to you.

What is Arthrosamid®?

What conditions can Arthrosamid® be used to treat?

How does Arthrosamid® work for knee osteoarthritis?

Are you a suitable patient for Arthrosamid® treatment:

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Frequently Asked Questions:

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What is Arthrosamid®?

What conditions can Arthrosamid® be used to treat?

How does Arthrosamid® work for knee osteoarthritis?

Are you a suitable patient for Arthrosamid® treatment:

For more information:

Frequently Asked Questions:

What is Arthrosamid?

How long does Arthrosamid last?

Who is a suitable candidate for Arthrosamid?

How does Arthrosamid compare to a steroid injection?

Is Arthrosamid available on the NHS?

Make an appointment