A Georgian townhouse on a quiet London street, the home of the clinic
KneePainClinicUK

Private Knee Pain Clinic in London

Knee pain can make everyday movement harder. Walking, stairs, exercise, work, and sleep can all be affected when a knee keeps aching, swelling, or feeling unreliable.

Regulated & recognised

  • Care Quality CommissionRegistered clinic
  • General Medical CouncilRegistered doctor
  • Royal College of Surgeons of EdinburghRoyal College of Surgeons
  • Faculty of Sport and Exercise MedicineSport & Exercise Medicine
  • British Medical AssociationMember
  • Queen Mary University of LondonMSc Distinction
As Featured In
Express
Daily Star
HuffPost
Bristol Post
Gloucestershire Live
Express
Daily Star
HuffPost
Bristol Post
Gloucestershire Live

See the treatment

Arthrosamid®, explained by Dr Abbas

A closer look at ultrasound-guided treatment, with your doctor.

Dr Syed Nadeem Abbas

Treating knee osteoarthritis at 48 Wimpole Street, London

Check if you may be suitable
Dr Syed Nadeem Abbas seated in front of a wall of Arthrosamid® boxes, with the words The home of Arthrosamid expertise

Experience you can trust

With experience comes precision.

Dr Abbas has performed an extensive number of Arthrosamid® injections, placing him among a small number of UK doctors with this depth of experience in Arthrosamid® knee treatment.

What is Arthrosamid®? A non-surgical treatment for knee osteoarthritis: a polyacrylamide hydrogel given as a single injection, designed to provide long-lasting pain relief and improved mobility. For many patients it is an option to consider before knee replacement.

Why patients choose Dr S N Abbas

  1. Among the UK’s most experienced

    Only a small number of UK doctors have this depth of Arthrosamid® knee experience.

  2. Precise injection technique

    Experience shows in the placement: careful, accurate and ultrasound-guided.

  3. A thorough assessment first

    We confirm the treatment is right for you before we recommend it.

  4. Trusted around the world

    Patients travel from across the UK and abroad to our Wimpole Street clinic.

Check if you may be suitable

8.5million

people in the UK are affected by osteoarthritis, with knee joints being the most commonly impacted.

Book a knee pain assessment if

  • Persistent knee pain that keeps returning or has not settled with rest, physiotherapy or previous treatment
  • Pain in the knee joint when walking, using stairs, standing from a chair or exercising
  • Stiffness after rest, morning stiffness, swelling or reduced confidence in the knee
  • Known or suspected knee osteoarthritis or arthritis-related knee pain
  • Previous knee treatment that has not provided enough relief
The consulting desk at 48 Wimpole Street, with framed certificates on the wall behind it
Mr Syed Nadeem Abbas seated in his consulting room, in front of a wall of medical books

Your doctor

Mr Syed Nadeem Abbas

Clinical Excellence Meets Artistic Precision

Dr Syed Nadeem Abbas’ medical career is built on a foundation of high-level clinical practice in Trauma and Orthopaedics, a field requiring rigorous training and specialist anatomical knowledge. He spent over six years working within major NHS hospitals, including Cambridge and Oxford. To advance his expertise, Dr S N Abbas completed a postgraduate MSc at Queen Mary University of London with Distinction—an achievement awarded only to candidates demonstrating exceptional academic performance. Today, he combines this surgical-level anatomical knowledge with regenerative science to help patients feel better, move better, and regain confidence.

20+ years treating complex knee conditions, and one of the UK’s foremost authorities on joint preservation.

Mr S N Abbas dedicated his career to helping people avoid invasive surgery when possible. Patients travel from across Europe to benefit from his expertise and his reassuring, thorough approach.

“My mission is simple: to help every patient regain their mobility and quality of life through expert, compassionate care.”
Schedule your consultation
MBBS, MRCSEd, MSc (Distinction)
Elite surgical and academic training.
DFSEM (UK)
Sport & Exercise Medicine.
20+ years experience
Two decades treating complex knee conditions.
Harley Street practice
State-of-the-art clinic in London’s premier medical district.
Patient-first approach
Known for taking time to truly understand each patient’s needs.
Visualisation of Arthrosamid hydrogel within the knee joint

Arthrosamid® at a glance: a non-biodegradable hydrogel injection for suitable patients with knee osteoarthritis.

97.5%
water
2.5%
polyacrylamide
  • Not a steroid injection
  • Not hyaluronic acid
  • Not PRP
  • Not a cure for arthritis

It is intended to integrate with the synovial tissue inside the knee, and does not reverse joint damage.

For suitable patients, it may help reduce pain, ease stiffness, and support better movement over time. Results vary.

Arthrosamid injection in London for knee osteoarthritis

Arthrosamid injection is an advanced, non-surgical treatment for knee osteoarthritis, designed to provide long-lasting pain relief and improve joint function. At our London clinic it is performed by an experienced medical doctor in a professional clinical setting, as a clinically supported alternative to knee replacement for suitable patients.

If you are searching for Arthrosamid injection in London or Arthrosamid injection near me, our clinic offers expert assessment and personalised treatment planning for patients with chronic knee pain, stiffness and reduced mobility due to osteoarthritis.

It is a sterile polyacrylamide hydrogel for use inside the knee joint, classified as a medical device and CE-marked for use in Europe, and it is used across the UK and Europe.

Arthrosamid injection may help to:

  • Reduce persistent knee pain
  • Improve mobility and flexibility
  • Reduce joint stiffness
  • Support everyday movement
  • Delay knee replacement surgery in appropriate cases
Glass visualisation of the knee joint showing the hydrogel cushioning the joint space

How does Arthrosamid injection work?

It works by providing mechanical cushioning inside the knee joint.

The treatment supports the knee joint by:

  • Improving lubrication
  • Reducing friction
  • Supporting load distribution
  • Minimising joint stress
  1. Synovial integration

    After injection, the hydrogel integrates with the synovial membrane, the soft tissue lining of the joint. This allows it to remain in place rather than being rapidly absorbed.

  2. Structural support

    Steroid injections primarily reduce inflammation for a limited period, and hyaluronic acid gradually breaks down. Arthrosamid is designed to remain within the joint space and provide structural support there.

  3. Gradual improvement

    Knee osteoarthritis wears the cartilage, which leads to inflammation, pain and stiffness. Patients may begin to notice gradual improvement in pain and mobility over the following weeks.

Return to what matters most

Every moment with loved ones. Every adventure waiting. Every step without pain.

Elderly couple walking hand in hand at sunset

Evening Walks

Hand in hand again, no pain holding you back

Lasting Relief

5+

years of freedom

"I can finally keep up with my grandchildren"

— Michael, 67

Woman doing yoga at sunrise

Flexibility restored

Grandfather playing with grandchild

Precious moments

Woman jogging on beach at golden hour

Active Living

Run, walk, dance — your choice

Clinically validated
Backed by clinical trials and over two decades of medical research, and used to treat thousands of patients worldwide.
Years of relief
Unlike temporary solutions, clinical follow-up shows sustained improvement in some patients up to five years after a single treatment.
Quick and gentle
A short outpatient procedure under local anaesthetic, with no hospital admission and a quick return to daily activities.
The treatment room at 48 Wimpole Street, with a treatment chair and consulting desk

Benefits of Arthrosamid injection

Arthrosamid injection offers several potential advantages for patients with knee osteoarthritis who want a non-surgical option. Outcomes vary between individuals, and many patients choose it in London for its clinical design and minimally invasive approach.

  • Long-lasting knee pain relief

    Designed to remain within the joint after treatment. Unlike temporary injections that break down over time, the hydrogel integrates with the synovial lining and may provide sustained cushioning. Many patients report gradual improvement in the weeks that follow.

  • A non-surgical option

    For patients who wish to avoid or delay knee replacement, it needs no general anaesthetic, hospital admission or surgical incision, which makes it worth considering before surgery.

  • Minimally invasive

    Performed with a fine needle under sterile conditions and typically completed in around 30 minutes, without complex surgical intervention.

  • No hospital stay

    Carried out in a clinical setting, with the patient returning home the same day.

  • A short recovery

    Most patients can resume light daily activities shortly after the injection, though strenuous activity may need to be limited for a while. Your doctor gives personalised aftercare advice.

  • Designed to stay in the joint

    The hydrogel integrates within the synovial membrane of the knee, so it remains in place rather than being rapidly absorbed, supporting long-term cushioning.

Who Is Suitable for Arthrosamid Injection in London?

A detailed medical consultation is essential to assess suitability. Your doctor will review your medical history, imaging where available, previous treatments, and current symptoms before recommending Arthrosamid injection.

Not all patients are suitable candidates, and individual assessment is necessary to ensure safe treatment planning.

Patients who may be appropriate:

  • Have been diagnosed with knee osteoarthritis
  • Experience chronic knee pain
  • Have reduced mobility
  • Have not achieved sufficient relief from physiotherapy or medication
  • Wish to delay or avoid knee replacement surgery

Arthrosamid injection compared with other knee treatments

  • Steroid injection

    Aims to reduce inflammation and may give short-term relief. Repeat injections may be required.

    ArthrosamidProvides structural cushioning rather than a temporary anti-inflammatory effect.

  • Hyaluronic acid injection

    Aims to improve lubrication but gradually breaks down.

    ArthrosamidIntegrates within the synovial lining and is designed to remain in place.

  • Knee replacement surgery

    A major surgical procedure with hospital admission and a longer recovery.

    ArthrosamidA minimally invasive treatment that may be considered before surgery in suitable patients.

Is Arthrosamid Injection Safe?

Arthrosamid injection is CE marked and has been used in clinical practice across the UK and Europe.

Your doctor will discuss risks and benefits during consultation. Careful sterile technique and appropriate patient selection help reduce complications.

As with any joint injection, potential side effects may include:

  • Temporary swelling
  • Mild discomfort
  • Injection site tenderness
  • Rare risk of infection

Understanding Knee Osteoarthritis

Watch our expert explain common conditions and treatment options in these informative videos.

Presented By
Mr Syed Nadeem Abbas

Mr Syed Nadeem Abbas

Expert Orthopaedic Physician | MBBS, MRCSEd, MSc

Part 1: What Is Knee Osteoarthritis?

Part 2: Why Does Knee Osteoarthritis Hurt?

Part 3: Where Does The Pain Really Come From?

Part 4: What Is Synovitis?

Part 5: How Do You Know If You Have Synovitis?

Part 6: Which Stage Of Osteoarthritis Is Synovitis?

Part 7: How Arthrosamid Works?

Your treatment, step by step

A simple, straightforward process to lasting knee pain relief with Mr Syed Nadeem Abbas.

The front door of the clinic at 48 Wimpole Street, London
  1. Book

    Book a consultation to assess your knee and discuss your options.

  2. Assessment

    Your symptoms, history, any X-rays or MRI reports, previous treatments and safety factors are reviewed. You leave with a clear next step, even if treatment is not recommended.

  3. Treatment day

    If Arthrosamid is right, the injection takes around 30 minutes under local anaesthetic, with ultrasound guidance for precise placement.

  4. Recovery and results

    Walk out the same day. Many patients notice a change within weeks, with the full benefit building over 4–12 weeks.

30 min
Procedure time
0
Hospital nights
48 hrs
To resume daily activities
5 yrs
Longest follow-up in studies
The front of the clinic on Wimpole Street, behind black iron railings

Why choose our clinic for Arthrosamid injection in London?

Patients searching for Arthrosamid injection near me choose our clinic for these reasons.

  • Doctor-performed

    An experienced medical doctor performs every injection.

  • Focused on non-surgical care

    Expert focus on non-surgical knee osteoarthritis treatment.

  • Central London

    A professional, sterile clinical environment in central London.

  • A full consultation

    A comprehensive consultation and a personalised treatment plan.

  • Safety first

    A commitment to patient safety and evidence-based practice.

We are dedicated to delivering high-quality, responsible care for patients seeking Arthrosamid injection in London.

Stories That Inspire

Hear from patients who took back control of their lives. Your success story could be next.

"I had resigned myself to a life of painkillers and cancelled plans. Three months after my treatment with Mr S N Abbas, I completed a 10-mile charity walk. Something I never thought possible again."

D

David H., 58

Manchester

"What impressed me most was how Mr S N Abbas took the time to explain everything. The procedure itself was nothing — fifteen minutes and done. But the results? Life-changing does not begin to cover it."

P

Patricia W., 66

Bristol

"As a former rugby player, my knees had taken a beating. I was told replacement was inevitable. Eighteen months post-Arthrosamid, I am coaching my son's team and keeping up with the lads."

M

Michael C., 52

Birmingham

"At my age, I was sceptical anything could help. But here I am, back in my garden every day, down on my knees planting and weeding. My husband says I have not stopped smiling."

E

Eleanor J., 73

Cambridge

43%

would choose non-surgical treatment options.

58%

worry about surgical side effects such as pain and discomfort.

61%

feel anxious about having surgery.

Frequently Asked Questions About Arthrosamid® Injection in London

Find answers to common questions about Arthrosamid® treatment at DrSNA Clinic.

If knee pain is limiting your daily life, book a private knee pain assessment in London. The aim is to understand the cause, review realistic options, and only proceed with treatment where it is clinically appropriate.

Book a knee assessment

Ready to move without knee pain?

If knee pain is limiting your daily life, book a private knee pain assessment in London. The aim is to understand the cause, review realistic options, and only proceed with treatment where it is clinically appropriate.

  • Private assessment
  • Honest recommendation
  • No pressure to proceed