What to Expect During an Arthrosamid Injection Procedure: Step by Step

Margaret is 63. She lives in Surrey and has struggled with knee osteoarthritis for four years. She has tried physiotherapy, steroid injections, and more painkillers than she cares to count. The relief never lasts. Her consultant mentioned Arthrosamid. She looked it up, found the evidence compelling, and booked a consultation at Dr SNA Clinic in London.

Her biggest anxiety was not the pain. It was not the cost. It was the unknown. What actually happens on the day? How long does it take? Will it hurt? Can she drive home?

This article answers every single one of those questions — step by step, in plain English, with nothing left out.

What Is an Arthrosamid Injection and Why Does the Procedure Matter?

Arthrosamid is a non-biodegradable hydrogel. It is made of 97.5% water and 2.5% cross-linked polyacrylamide. When a clinician injects it into the knee joint, it gradually integrates with the synovial membrane — the soft tissue lining inside the joint. Over four to six weeks, it becomes part of the joint’s natural structure. It cushions, supports, and reduces inflammation.

That is the science. But here is what most patients do not fully appreciate until they are told directly: the procedure matters as much as the product.

Arthrosamid must be placed accurately inside the synovial cavity. Not approximately. Not close enough. Precisely. A misplaced injection can reduce how well the hydrogel integrates. And unlike a steroid injection — which works systemically regardless of where it lands — Arthrosamid needs to be in exactly the right position to do its job properly.

This is why the clinician performing your injection matters enormously. And it is why understanding the procedure in advance helps you choose the right provider.

Before the Day — What Happens at Consultation

Before any Arthrosamid injection takes place, a full clinical consultation must happen. This is not optional. It is the essential first step.

At Dr SNA Clinic, Mr Syed Nadeem Abbas reviews every patient personally before any treatment is agreed. He is not rushing through a booking form. He is doing what a clinician with six years of NHS Trauma and Orthopaedics training does — assessing the joint properly.

At your consultation, Mr Abbas will:

• Take a detailed history of your knee symptoms — how long, how severe, what makes it worse, what you have already tried
• Review any imaging you have — X-rays, MRI scans — or arrange them if they are not yet available
• Examine the knee clinically
• Discuss whether Arthrosamid is genuinely the right option for your situation — including honest alternatives if it is not
• Confirm the Arthrosamid injection cost, what is included, and answer any questions you have

There is no pressure at this stage. No obligation to proceed. Mr Abbas will tell you clearly if he does not believe Arthrosamid is the right treatment for you. That kind of candour is rare. It is also what protects patients from having procedures they do not need.

How to Prepare for Your Arthrosamid Injection Appointment

Preparation is straightforward. Most patients do not need to make significant changes to their routine.

In the week before your appointment:

• Continue taking your usual medications unless Mr Abbas has advised otherwise
• If you take blood-thinning medication — warfarin, rivaroxaban, apixaban — raise this at consultation. These may need to be paused temporarily under medical supervision
• If you develop an infection before the appointment — a chest infection, urinary tract infection, cold sore, or skin infection near the knee — contact the clinic. An active infection anywhere in the body may mean the procedure needs to be postponed
• Avoid anti-inflammatory medications like ibuprofen for 48 hours beforehand if possible, as they can affect the joint environment

On the day:

• Eat and drink normally. There is no fasting requirement
• Wear loose, comfortable clothing — shorts or loose trousers work well. The clinician needs clear access to the knee
• You do not necessarily need someone to drive you home, but it is worth arranging this if you are travelling far or feel anxious. The local anaesthetic typically wears off within a few hours

Bring any relevant imaging that was not already sent to the clinic.

What Happens After You Leave — The First 12 Weeks

Understanding what comes next is just as important as understanding the procedure itself.

Days 1 to 3: Mild discomfort, swelling, or a feeling of fullness in the knee is entirely normal. This is the knee settling after the injection. Use paracetamol if needed. Apply an ice pack wrapped in a cloth for up to 20 minutes at a time to reduce swelling. Avoid strenuous activity.

Days 4 to 7: Most patients feel broadly back to normal for light daily activities. Walking at a gentle pace is fine and actually encouraged. Avoid heavy lifting, running, or high-impact exercise.

Week 4: This is typically when early improvements start to appear. Many patients notice reduced morning stiffness or slightly improved mobility. Some patients notice nothing yet at this stage — this is also completely normal. The integration process is biological and takes time.

Weeks 8 to 12: This is the period when the most significant improvement usually becomes noticeable. Pain, stiffness, and mobility all tend to improve as the hydrogel becomes fully integrated with the synovial tissue. Mr Abbas schedules a follow-up review around this point to assess your progress and discuss whether any further support is needed.

When to contact the clinic: Call the clinic immediately if you experience increasing redness, warmth, fever, or rapidly worsening pain in the knee after the procedure. These could indicate infection — rare, but requiring prompt attention.

How Long Do Results Last?

Clinical studies report sustained improvements in pain and function for up to five years after a single Arthrosamid injection in suitable patients. A 2025 five-year follow-up study published in peer-reviewed literature confirmed continued meaningful improvements at that point.

This does not mean every patient gets five years. Individual results vary considerably depending on the severity of the osteoarthritis, the patient’s age, weight, activity level, and general health. But for many patients, Arthrosamid provides the longest window of relief they have experienced from any non-surgical treatment.

Many patients choose an annual review with Mr Abbas to assess their ongoing response and discuss whether any further treatment would be beneficial.

Arthrosamid Injection Cost — What You Pay at Dr SNA Clinic

One of the most common questions patients ask before booking is straightforward: what does this cost?

At Dr SNA Clinic, the Arthrosamid injection cost is transparent and all-inclusive:

Treatment	Price
Single knee	£2,800
Both knees	£5,300
Initial consultation	£100 (fully redeemable against treatment)

Every treatment includes:

• Comprehensive consultation with Mr S N Abbas personally
• Imaging review before treatment is agreed
• Prophylactic antibiotics as per official Arthrosamid guidelines
• Ultrasound-guided injection performed by Mr Abbas
• Post-injection physiotherapy guidance and supplement advice
• Six-week and twelve-week follow-up appointments
• 0% finance available to spread the cost

How does this compare?

Provider	Single Knee
Dr SNA Clinic	£2,800
Nuffield Health Parkside	£2,950
St John & St Elizabeth Hospital	£3,025
RAD Clinics	£2,290

Price alone does not tell the full story. The critical questions are: who performs the injection, is ultrasound guidance included, are antibiotics provided, and what follow-up is included? At Dr SNA Clinic, every one of those answers is yes — and the procedure is performed by a clinician with surgical NHS training, not delegated to junior staff.

Is it available on the NHS? No. Arthrosamid is not currently available on the NHS. NICE has not yet endorsed it as a standard NHS treatment pathway. 0% finance is available at Dr SNA Clinic to help spread the cost.

Arthrosamid Injection London — Why the Clinician Makes All the Difference

If you are searching for Arthrosamid injection London or Arthrosamid injection near me, you will find several providers. The procedure looks the same on paper across all of them. But there are significant differences in how it is actually performed.

The questions worth asking any provider:

• Who performs the injection — the consultant or a nurse?
• Is ultrasound guidance used as standard?
• Are prophylactic antibiotics included?
• What follow-up is provided after the injection?
• What is the clinician’s specific training in Arthrosamid?

Mr Syed Nadeem Abbas holds formal Arthrosamid specialist certification through the American Cellular Medical Association. He is one of a small number of UK-based clinicians with this specific credential alongside an NHS surgical background. His training in Trauma and Orthopaedics at Cambridge and Oxford gives him a level of anatomical understanding of the knee that most aesthetic practitioners simply do not have.

That background shows in how the procedure is performed. Every step — the antibiotic cover, the dual-spin PRP preparation where applicable, the ultrasound guidance, the post-injection confirmation — reflects surgical rigour applied to a clinical injection procedure.

Who Is Suitable for Arthrosamid Injection?

Arthrosamid is not appropriate for every patient. It is specifically designed for mild to moderate knee osteoarthritis. Suitability is confirmed at consultation — not assumed from a website enquiry.

You may be a good candidate if you:

• Have confirmed knee osteoarthritis
• Have tried physiotherapy, pain relief, and lifestyle measures with insufficient relief
• Have had short-term injections with diminishing returns
• Want to avoid or delay knee replacement surgery
• Are not suitable for surgery due to other health conditions

Arthrosamid is generally not suitable if you:

• Have an active infection in or around the knee
• Have a known allergy to polyacrylamide
• Have had recent knee surgery
• Have severe end-stage osteoarthritis where another treatment is more appropriate
• Are currently undergoing chemotherapy or pelvic radiotherapy

The Bottom Line

Margaret had her Arthrosamid injection at Dr SNA Clinic. She went home the same day. By week ten, she was walking the dog again — something she had not managed without stopping every few minutes for two years.

The procedure itself took thirty-five minutes. It was nothing like she feared. The local anaesthetic worked well. She felt mild pressure, nothing more. She drove herself home the following morning.

The thing she said afterwards that most patients say: she wished she had understood the process earlier. Not because knowing it would have made the decision easier — but because understanding exactly what happens removes the anxiety that stops so many people from even picking up the phone.

If knee osteoarthritis is affecting your daily life and you are wondering whether Arthrosamid injection might help, the first step is a consultation. Not a commitment. Just a conversation.

Book a consultation with Mr Syed Nadeem Abbas at Dr SNA Clinic, 48 Wimpole Street, Marylebone, London W1G 8SF. Call +44 7955 836986 or visit drsnaclinic.com/arthrosamid-injection.

Read More:

Is Arthrosamid Injection the Right Knee Pain Treatment for You?

Arthrosamid Injection vs Steroid and Hyaluronic Acid Injections for Knee Pain