The Impact of Knee Osteoarthritis and Introducing Arthrosamid

Knee osteoarthritis is a common condition that affects millions of people worldwide. It slowly wears down the cartilage in the knee joint, causing pain, stiffness, swelling, and difficulty moving. These symptoms can make everyday activities like walking, climbing stairs, or even standing for a long time feel like a real challenge. Because of this, many people look for effective treatments that can help manage symptoms and delay the need for surgery. One such option gaining attention is Arthrosamid injections—a modern, non-surgical treatment that offers lasting relief. In this article, we’ll explain how Arthrosamid works, what the treatment involves, and how it compares to other options, so you have a clear understanding of this innovative therapy.

What Exactly Is Arthrosamid and How Does It Work?

Arthrosamid is a specially designed gel made from polyacrylamide hydrogel—a synthetic material that mimics the natural cushioning of healthy cartilage. When injected into the knee, Arthrosamid acts like a gentle cushion, filling the space inside the joint and helping to lubricate it. This eases the friction and shock that occur during movement, which can reduce pain and improve how the knee functions.

Unlike some injectable treatments that break down quickly, Arthrosamid stays in the joint for a long time. As one recent study explains, “iPAAG fulfils an unmet clinical need for an effective, long-acting and safe non-surgical treatment that may postpone knee surgery for those with OA” (Bliddal et al., 2023). Thanks to these unique properties, Arthrosamid provides ongoing support inside the knee and has been shown to help many patients experience less pain and better mobility.

What to Expect: The Arthrosamid Injection Procedure

Getting Arthrosamid injections is usually a straightforward, outpatient procedure that doesn’t require an overnight hospital stay. To ensure accuracy, clinicians use ultrasound imaging to guide the injection precisely to the affected areas inside the knee, maximising the treatment’s effectiveness.

Patients typically feel only minor discomfort during the injection, often with a local anaesthetic applied beforehand to ease any pain. The procedure is quick, and most people can head home the same day. Afterwards, only light activity is recommended for a few days to allow the gel to settle properly.

The treatment is delivered by highly skilled specialists, including leading experts like Professor Paul Lee and the experienced team at MSK Doctors. Their priority is to provide expert care in a supportive environment, helping patients feel confident and well-informed every step of the way.

How Does Arthrosamid Compare to Other Injection Treatments?

Knee injections for osteoarthritis aren’t new—corticosteroids, hyaluronic acid, and platelet-rich plasma (PRP) injections have been widely used for years. Corticosteroids reduce inflammation and provide fast relief but usually only for a short time. Hyaluronic acid aims to lubricate the joint but often requires repeat treatments. PRP uses your own blood platelets to encourage healing, though results can vary between patients.

Arthrosamid stands out because it offers a more durable physical cushion inside the joint. One recent study highlights that “single injections of 6 ml intra-articular iPAAG are well tolerated and continue to provide clinically relevant and statistically significant effectiveness at 3 years after treatment” (Bliddal et al., 2023). Another comparative study adds, “iPAAG offers comparable short-term efficacy and modest advantage at 6 months. However, long-term superiority is limited. It may be a complementary option in individualized osteoarthritis management” (Aykaç et al., 2025). While not a cure, Arthrosamid’s minimally invasive nature can appeal to those seeking lasting symptom relief and hoping to delay knee replacement surgery.

Recovery, Results, and How Long Arthrosamid Lasts

Recovery from Arthrosamid injections is generally smooth. Patients can typically resume light everyday activities quickly but should avoid heavy or high-impact movements for a few days to give the gel time to settle.

Many patients see a noticeable reduction in pain and improvements in joint movement that can last months or more. According to research, there were “clinically relevant and statistically significant decreases from baseline to 3 years for each of the 3 WOMAC subscale scores and the Patient Global Assessment” (Bliddal et al., 2023). Additionally, when compared directly with other injections, “iPAAG showed the highest patient acceptable symptom state rates (72%, 54%, and 42% at 3, 6, and 12 months),” reflecting a positive impact on patient wellbeing over time (Aykaç et al., 2025). Of course, how long the benefits last varies between individuals depending on disease severity and other health factors.

Throughout the recovery and beyond, specialists like Professor Lee and the MSK Doctors team remain on hand to monitor progress and offer personalised advice to support healthy joint function.

Conclusion: Is Arthrosamid Right for You?

In conclusion, Arthrosamid injections represent an exciting, science-backed option for people living with knee osteoarthritis. By replenishing cushioning and lubricating the joint, this treatment can ease pain, improve mobility, and may help delay the need for surgery. As with any medical treatment, it is essential to discuss your individual situation with a qualified healthcare professional who can recommend the best course of action for you.

For individual medical advice, please consult a qualified healthcare professional.

References

• Cole, A., Maulana, R. K., Whitehead, J. P., & Lee, P. Y. F. (2022). A systematic review of the novel compound Arthrosamid polyacrylamide (PAAG) hydrogel for treatment of knee osteoarthritis. Medical Research Archives, 10(8). https://doi.org/10.18103/mra.v10i8.2950
• Bliddal, H., Beier, J., Hartkopp, A., Conaghan, P. G., & Henriksen, M. (2023). Polyacrylamide hydrogel for the treatment of knee osteoarthritis: 3 year follow up results of a prospective clinical study. Annals of the Rheumatic Diseases. https://doi.org/10.1136/annrheumdis-2023-eular.6038
• Aykaç, B., Dinç, M., Nar, Ö. O., Karasu, R., & Bayrak, H. Ç. (2025). Comparative efficacy of polyacrylamide hydrogel versus hyaluronic acid and corticosteroids in knee osteoarthritis: A retrospective cohort study. Medicine, 104(38), e44655. https://doi.org/10.1097/md.0000000000044655