Arthrosamid Injections

🔬 What is Arthrosamid?

Arthrosamid® is an innovative, long-acting treatment for knee osteoarthritis. It is a non-biodegradable hydrogel injection designed to reduce pain and improve knee function. Unlike traditional steroid or hyaluronic acid injections, Arthrosamid® integrates into the synovial lining of the knee joint and provides a cushioning, lubricating effect that may offer sustained relief for months to years.

🩺 How does Arthrosamid work?

Arthrosamid® is injected directly into the knee joint. Once inside the joint, the hydrogel:

• Reduces inflammation and pain

• Integrates with the synovial tissue, creating a more stable and lasting effect

This unique mechanism means relief can be long-lasting, with many patients reporting meaningful improvement beyond 12 months.

✅ Who is suitable for Arthrosamid?

Arthrosamid® may be appropriate for patients who:

• Have knee osteoarthritis

• Experience persistent pain despite physiotherapy and simple analgesia

• Are not ready for, or wish to delay, knee replacement surgery

• Prefer a more minimally invasive treatment with a good safety profile

It is not recommended for patients with active infection, certain inflammatory arthropathies, or previous severe reactions to injectable materials.

🧪 What does the procedure involve?

• The skin is cleaned and local anaesthetic may be used

• A single injection of Arthrosamid is introduced into the knee joint under aseptic conditions

• Most patients can walk immediately afterwards

• The entire procedure typically takes 10–15 minutes.

• Mild swelling or discomfort can occur for 24–48 hours. Ice packs and simple painkillers are usually sufficient

• Avoid high-impact activity for 48–72 hours

• Most people can return to normal daily activities the next day

• Initial improvement after 2–6 weeks

• Continued improvement over 3–6 months

• Potential benefits lasting up to several years

⚠️ Risks & Side Effects

Arthrosamid is generally very safe, but as with any injection, risks include:

• Temporary pain or swelling at the injection site

• Local inflammation or joint effusion

• Very rare risk of infection

• Rare hypersensitivity-type reactions

Arthrosamid remains permanently integrated in the lining of the knee to reduce knee inflammation, which contributes to its potentially long-lasting effects. As it is a relatively new injectable agent, we do not yet fully know the impact of having Arthrosamid on patients who subsequently go on to need knee replacement surgery. At present, there no evidence to suggest any increased risks to patients who have had Arthrosamid and then subsequently gone on to have knee replacement surgery.