If you’ve been living with the pain, stiffness, and frustration of knee osteoarthritis (OA), you’re probably tired of short-term fixes. You might have tried painkillers, physiotherapy, maybe even steroid injections—only to end up back at square one.
That’s where Arthrosamid® comes in: a science-backed injectable treatment that offers long-term relief for knee OA. But at Great Northern Physiotherapy, it’s not just about the injection—it’s about comprehensive care that gets your knee, and your life, moving again.
What is Arthrosamid®?
Arthrosamid® is a revolutionary injectable hydrogel made from 2.5% cross-linked polyacrylamide and 97.5% water. Once injected into the knee joint under local anaesthetic, it integrates permanently with the synovial lining—the tissue that surrounds your joint.
This integration helps to:
- Reduce inflammation
- Cushion the joint surfaces
- Relieve pain
- Improve joint function
Over time, the hydrogel becomes part of the joint lining, creating a thicker, more hydrated barrier that supports the knee and helps slow down OA progression. It acts more like a “biological scaffold” than a simple lubricant.
Unlike steroid injections—which can wear down cartilage and only provide temporary relief—Arthrosamid® has demonstrated lasting improvements in pain and function for up to 4 years, with no cartilage-degrading side effects. It’s backed by more than 20 years of research and clinical use.
What Arthrosamid® Isn’t
❌ A steroid or cortisone shot
❌ A short-term fix
❌ A substitute for rehab or movement
Arthrosamid® doesn’t just mask the pain. It changes the internal joint environment to deliver meaningful, long-lasting improvement. But—as with all joint care—the best results happen when it’s part of a bigger plan. That’s something we’re proud to do well.
How We Inject It: Ultrasound-Guided Precision
At Great Northern Physiotherapy, all Arthrosamid® injections are performed under ultrasound guidance (USG). This ensures pinpoint accuracy, allowing us to place the hydrogel exactly where it’s needed within the joint capsule. USG injection improves outcomes, reduces risk, and ensures the highest level of clinical precision in your treatment.
Why We Go Beyond the Injection
We know that no single intervention solves osteoarthritis. That’s why we combine Arthrosamid® with a free, expert-led rehab and lifestyle programme to maximise your results:
✅ Free 1:1 Physiotherapy Sessions
You’ll receive tailored physio support before and after your injection to build strength, mobility, and knee stability—giving Arthrosamid® the best chance to work.
✅ Free Access to “Stronger Steps” – Our 6-Week Knee Rehab Class
Led by MSK physios, this class includes evidence-based strength training, movement retraining, and functional rehab, delivered in a friendly, supportive environment. It’s specifically designed to complement Arthrosamid® and support long-term knee health.
✅ Healthy Living with OA Guide
You’ll receive our in-depth advice pack with guidance on nutrition, pacing, activity modification, and long-term lifestyle strategies to help you live confidently with osteoarthritis.
Meet Phil – Your First Point of Contact
Our Arthrosamid® service is led by Phil Williams, Chartered Physiotherapist and Clinic Director. With advanced training in injection therapy, diagnostic ultrasound, and OA rehabilitation, Phil will guide your assessment, answer your questions, and ensure you’re the right candidate for this treatment.
Book Now and Start Moving Again
Whether you’re hoping to avoid surgery, stay active for longer, or finally find sustained relief from knee pain, we’re here to help.
Book your initial assessment with Phil today
💻 Free online video consultations also available or call us on 01522 787164
