Arthrosamid® Injections in Wandsworth

Arthrosamid injections

Arthrosamid® Injections in Wandsworth

Arthrosamid injections are a cutting-edge, non-surgical treatment option for people with knee osteoarthritis, persistent knee swelling, or ongoing knee pain that has not responded to traditional injections. At Wandsworth Physiotherapy, Arthrosamid is offered through our specialist Knee Pain Clinic or Ultrasound Guided Injection Clinic, combining advanced imaging, expert assessment and evidence-based rehabilitation.

If steroid injections or hyaluronic acid (HA) injections have only provided short-term relief — or if knee replacement has been suggested as premature — Arthrosamid may offer a longer-lasting alternative.

What is Arthrosamid®?

Arthrosamid® is a polyacrylamide hydrogel injectable implant designed specifically for use in knee osteoarthritis.

Unlike hyaluronic acid injections, which gradually break down over several months, an Arthrosamid injection is non-biodegradable. Once injected, it integrates with the synovial lining of the knee joint and remains in place long term.

The hydrogel is made up of approximately 97.5% water and 2.5% cross-linked polymer, allowing it to behave like a soft, stable cushion within the joint. This structure helps to modulate inflammation and provide longer lasting relief from knee pain.

Ultrasound guided steroid injection

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Ultrasound guided injections

Who is Arthrosamid® for?

At our Wandsworth Knee Pain Clinics in Wandsworth Town, Putney, Clapham Junction, Battersea Nine Elms and Chelsea, we frequently see patients for Arthrosamid injections who:

Arthrosamid injections offer a middle ground between short-acting injections and surgery. Because it functions as a semi-permanent implant rather than a temporary lubricant, it can provide longer-lasting symptom relief for suitable patients.

It is particularly considered for people with:

Arthrosamid injections for knee arthritis

How Arthrosamid injections work at Wandsworth Physiotherapy

Every Arthrosamid treatment begins with a comprehensive knee assessment. This includes:

This ensures the injection is appropriate and part of a broader, targeted management plan.

Ultrasound guidance improves precision, safety and consistency of outcomes when performing Arthrosamid injections.

We arrange follow-up reviews to:

Treatment for knee arthritis

What you should know about Arthrosamid

A full discussion of suitability, benefits and risks is always part of your consultation.

Arthrosamid injections in Wandsworth – book a consultation

If you are experiencing ongoing knee pain, repeated flare-ups, or diminishing returns from previous injections, an Arthrosamid consultation at Wandsworth Physiotherapy may be the next step.

During your appointment, we will assess whether Arthrosamid is appropriate for you or whether an alternative treatment pathway would be more suitable.

Book online, call our clinic, or contact us directly to arrange a Complete Knee Assessment and discuss Arthrosamid injections in Wandsworth.

Our goal is to help you achieve long-term pain relief, improved knee function and confidence in movement without unnecessary surgery.

ultrasound guided steroid injections for arthritis

Arthrosamid® Injection FAQs

Arthrosamid® is a non-biodegradable hydrogel implant injected into the knee joint to help manage pain and improve function in knee osteoarthritis. Unlike injections that are gradually absorbed, it’s designed to remain in place and integrate with the joint’s synovial lining, providing ongoing cushioning.

Find out more about Arthrosamid® injections in Wandsworth and how the assessment pathway works.

It may suit people with knee osteoarthritis who are still experiencing pain, swelling or reduced function despite conservative treatment, particularly those who’ve had limited benefit from previous injections or who want an alternative to consider before knee replacement surgery. Our Knee Pain Clinic carries out the detailed assessment needed to confirm suitability.
It’s designed to reduce inflammation within the joint and integrate with the surrounding synovial tissue, delivered using ultrasound guidance for accurate placement. Our ultrasound guided injection service is what makes this precise delivery possible.
Steroid injections remain useful for short-term inflammation and pain relief, while hyaluronic acid aims to improve joint lubrication — our article on hyaluronic acid injections for knee pain covers this option specifically. Arthrosamid® is different in that it’s designed as a longer-lasting implant rather than a treatment that’s gradually absorbed. The most appropriate choice depends on your symptoms, history and goals, which your clinician will discuss with you directly.
Local anaesthetic is used to keep the procedure comfortable, and the injection itself is delivered under ultrasound guidance to ensure accurate placement. Most patients walk out the same day and are given clear advice on activity levels for the following week.
Most patients gradually return to normal activity over the following weeks, though it can take 2–3 months to notice the full benefit. A structured rehabilitation plan alongside the injection is important — our article on treating knee arthritis explains why strength and movement work matter just as much as symptom relief for long-term joint health.
You’ll be advised to rest and stick to normal daily activities for the first week. After that, exercise becomes an important part of managing knee osteoarthritis long-term, and your physiotherapist can guide a suitable return-to-activity plan through our exercise rehabilitation service.