Arthrosamid is a highly versatile knee arthritis treatment suitable for a wide demographic from active individuals wanting to maintain their athletic lifestyle to older patients seeking a pain-free retirement without surgical risks.
Knee Arthritis Treatment London: Evidence-Based Joint Preservation
Advanced Joint Preservation. Permanent Hydrogel Technology. Reclaim Your Life.
BOOK A CONSULTATIONCALL OUR PRACTICEREQUEST A CALLBACKWhy Choose Arthrosamid?
A Groundbreaking Approach to Knee Pain Relief
Chronic knee osteoarthritis pain doesn’t have to control your daily life anymore. With Arthrosamid, a long-lasting injectable hydrogel, Mr. Anshul Sobti offers an advanced alternative to major joint replacement surgery in the UK.
5+
Years of
Proven Relief
Proven Relief
20+
Years of
Clinical Research
Clinical Research
1
Single
Injection
Injection
Decreases Joint Stiffness
Improves fluid movement and flexibility - helping you move freely again.
MobilityDiminishes Chronic Pain
Cushions the joint to stop painful bone-on-bone friction - providing lasting relief.
Pain ReliefRestores Independence
Facilitates a return to daily activities, sports, and the life you love.
Quality of LifeSingle-Step Procedure
Outpatient treatment under local anaesthesia - walk in and walk out the same day.
Minimally InvasiveRecognition of Excellence
Awarded Outstanding
Patient Experience 2026
Mr. Anshul Sobti has been awarded the Doctify Gold Standard - Outstanding Patient Experience 2026 , recognising his unwavering commitment to exceptional, compassionate care for every patient throughout their orthopaedic journey.
View Profile on Doctify
Trusted Private Orthopaedic Care in London & Middlesex
Consultant-Led Treatment
Direct care from an internationally trained, highly experienced UK orthopaedic joint preservation specialist.
Non-Surgical Innovation
Utilizing the latest, evidence-based injectable hydrogel technology for lasting pain relief.
6 Premier London Clinics
Rapid access to private appointments in Harrow, Northwood, Brentford, Kingston, Hendon, and Hertfordshire.
Recognised by Major Insurers
Fully approved for private care by Bupa, AXA Health, WPA, Vitality, and Aviva.
GMC & FRCS Certified
Operating to the absolute highest UK standards of patient safety, clinical excellence, and interventional governance.
About the Surgeon
Dedicated to Restoring
Movement & Quality of Life
Mr. Anshul Sobti is a highly distinguished Consultant Orthopaedic Surgeon based in London, offering profound expertise in complex adult knee arthroplasty. He combines advanced surgical precision with a deeply compassionate, patient-centred approach.
Academic & Professional Excellence
Medical Degrees: MBBS, Diploma in Orthopaedics, DNB Ortho, MCh Ortho
UK Fellowships: FRCS Tr & Orth, MFSTEd
Leadership: Trauma Director & Clinical Governance Lead (Hillingdon Hospital), Active Surgical Trainer & Published Researcher
Recognition: Active Surgical Trainer & Published Researcher
Preservation First: Joint preservation is prioritized; surgery is recommended only when clinically necessary.
Biomechanical Precision: Surgery is executed using the most advanced prosthetic implant materials available.
Tailored Recovery: Focusing on restoring you to the specific daily activities and sports you love.
Is This For You?
Who is Arthrosamid For? Recognising the Ideal Candidate
You require a specialist arthritis assessment if you experience:
- Diminishing Returns from Other Treatments:
- Corticosteroid or hyaluronic acid injections no longer provide lasting relief.
- Desire to Avoid Surgery:
- You wish to delay knee replacement, are deemed too young for implants, or have medical comorbidities that make anaesthesia risky.
- Constant Daily Pain:
- You struggle to walk short distances without a limp or require walking aids. - Profound Joint Stiffness:
- Bending your knee to put on shoes is incredibly difficult; morning stiffness is severe. - Loss of Quality of Life:
- You are actively cancelling holidays or giving up low-impact sports like golf or cycling due to predictable joint discomfort.
Understanding Your Condition
Where Arthrosamid Fits in Your Care
A responsible orthopaedic approach scales treatment to the severity of your cartilage loss.
1
Early Management
- Targeted physiotherapy to strengthen supporting muscles, weight management, and activity modification.
2
Medical Interventions
- Use of NSAIDs and temporary ultrasound-guided corticosteroid injections for acute, short-term inflammation control.
3
The Arthrosamid Window
- When osteoarthritis progresses and traditional injections fail, Arthrosamid bridges the gap. It provides years of durable relief and successfully delays prosthetic implants.
Where Mr. Sobti Practices
Why London Patients Choose Arthrosamid
Clinical studies demonstrate that a single injection provides significant pain reduction.
Proven Efficacy
Supported by over 20 years of rigorous scientific research in treating osteoarthritis safely. Exceeds the Minimal Clinically Important Difference (MCID) metrics.
Long-Lasting Relief
Clinical data shows sustained, significant pain reduction maintained up to and beyond five years after a single injection.
Without Surgery
Avoid the profound physical trauma, hospitalization, infection risks, and exhaustive 6-to-12-month rehabilitation protocols associated with total knee replacement.
When To Seek Help
A Patient-Centred Treatment Philosophy
Preservation First
Surgery is never the default first step. Biological and biomechanical joint preservation is prioritized to save your natural anatomy.
Evidence-Based Innovation
We exclusively utilize treatments supported by rigorous clinical data such as the two decades of research backing Arthrosamid.
Tailored Recovery
Integrating advanced therapies customized to restore you to the specific hobbies, work, and sports you love without the downtime of major surgery.
Treatment Options
What is Arthrosamid®? The Science of Permanent Hydrogel
For decades, non-surgical options were limited to temporary steroid injections or short-acting hyaluronic acid. Arthrosamid completely redefines orthopaedic medicine.
The Biomechanics of Knee Osteoarthritis
Understanding Your Joint Pain - Osteoarthritis (OA) is a progressive, degenerative condition.
The smooth articular cartilage covering the ends of your thigh and shin bones slowly wears away.
Without this protective layer, bones rub directly against one another.
The joint lining (synovium) becomes highly inflamed, producing excess, poor-quality fluid that causes painful swelling and profound joint stiffness.
Historically, patients were forced to rely on temporary steroid injections or wait in agony until the joint was damaged enough to justify a total knee replacement.
The Arthrosamid® Solution
The Science of Permanent Hydrogel - Arthrosamid completely redefines non-surgical knee arthritis care.
It is the first and only approved injectable treatment consisting of a 2.5% cross-linked polyacrylamide hydrogel.
When injected, the hydrogel permanently combines with the knee’s synovial tissue.
It significantly thickens the protective lining, acting as a permanent, physical shock absorber that spaces the joint and drastically reduces friction.
Unlike steroids or hyaluronic acid that the body flushes out in months, Arthrosamid is permanent. It provides relief that lasts for years, delaying or completely eliminating the need for joint replacement.
Timeline Journey
The Patient Journey: Diagnosis to Day of Injection
Delivering Arthrosamid requires anatomical precision. Mr. Sobti’s protocol ensures maximal safety and clinical efficacy.
Step 1: The Expert Consultation
- An unhurried discussion of your symptom history, paired with a thorough physical examination assessing gait, alignment, and joint effusion (swelling).
Step 2: Advanced Diagnostic Imaging
- Rapid-access weight-bearing X-rays or MRI scans to precisely grade cartilage loss and confirm Arthrosamid suitability for your specific knee anatomy.
Step 3: Collaborative Planning
- Reviewing scans in plain English. Mr. Sobti will explain exactly how the hydrogel will interact with your specific joint deterioration.
Step 4: The Procedure Preparation
- Administered in a sterile outpatient clinical setting. The knee is thoroughly cleaned, and a local anaesthetic is applied to numb the tissues.
Step 5: Precision Injection
- Utilizing ultrasound guidance, the 6ml hydrogel is delivered with pinpoint accuracy directly into the joint cavity. The entire process takes under 30 minutes.
Recovery is vastly different from major surgery. It is a partnership between the biological integration of the hydrogel and your commitment to brief, sensible rehabilitation.
Days 1 to 3 (Immediate Post-Injection):
Walk out of the London clinic unassisted.
- Temporary mild swelling or a sensation of "fullness" is entirely normal.
- Focus on resting, elevating the leg, and avoiding unnecessary strain.
Weeks 1 to 2 (Integration Phase):
Avoid heavy lifting, deep squatting, and high-impact exercises (running/jumping).
- This rest allows the hydrogel to successfully weave into the synovial joint tissue without mechanical displacement.
Weeks 4 to 12 (Symptom Relief):
The biological cushioning effect matures over this specific window.
- Joint stiffness drastically decreases; significant, lasting pain relief is clinically realized.
Months 3 and Beyond (Returning to Life):
Fully cleared to return to normal daily activities.
- Resume recreational sports, long walks, golf, and travel without chronic osteoarthritic pain dictating your schedule.
Where Mr. Sobti Practices
Hospital Affiliations & London Locations
Mr. Sobti consults and operates out of five premium, highly equipped hospitals to ensure convenient access for patients across London and Middlesex.
The Clementine Churchill Hospital
— Harrow, London
Luxury private patient rooms and rapid on-site diagnostic suites.
Bishops Wood Hospital
— Northwood, London
Tranquil setting with dedicated orthopaedic theatres and physiotherapy teams.
Syon Clinic
— Brentford, London
Premium outpatient center for fast-tracked initial consultations.
New Victoria Hospital
— Kingston upon Thames
Independent hospital renowned for exceptionally low infection rates.
Hendon Hospital
— Hendon, London
Specialized private healthcare hub offering comprehensive imaging and post-operative care.
OSD Healthcare
— Hemel Hempstead, Hertfordshire
State-of-the-art facility featuring 3T MRI technology and a 24/7 private GP service.
Honest Care: Benefits, Risks, and Important Considerations
01
The Clinical Benefits:
Transformative Joint Preservation
- Surgical Avoidance: Complete avoidance of surgical trauma and zero hospital stays.
- Anatomy Preservation: Keeps your natural bone, ligaments, and cartilage intact.
- Outperforms Alternatives: Provides durable, multi-year relief that significantly outperforms any other temporary steroid or hyaluronic acid therapy currently available on the market.
02
Understanding the Clinical Profile:
Honest Care & Important Considerations
- Temporary Swelling: Mild, transient discomfort at the injection site can occur, resolving within a few days with simple ice and rest.
- Infection Risk: As with any injection that breaches the skin, there is a microscopic risk of infection, which is heavily mitigated by strict adherence to sterile clinical techniques.
- Delayed Onset: Integration takes time. Full efficacy is usually judged at the 12-week mark; patients must understand it is a biological process, not an instant "magic bullet."
Common Question
Common Questions Patients Ask In Clinic
How long does it take to feel the effects of Arthrosamid?
Arthrosamid can take between four weeks and three months to reach its full potential. While some patients experience immediate relief from the mechanical cushioning, the full biological integration takes several weeks to manifest.
Are there any activity restrictions following treatment?
Can Arthrosamid delay the need for knee replacement surgery?
How is this different from a steroid or hyaluronic acid injection?
Is the injection painful?
Can I have Arthrosamid in both knees?
Take the First Step
Secure an expert diagnosis and begin your journey to pain-free movement today.
Our team aims to respond to all online enquiries within 24 working hours to arrange an appointment at a London clinic that suits you perfectly.
