Profile

Dr Arj Imbuldeniya is a Consultant Orthopaedic Knee and Hip Surgeon with over 25 years of clinical experience and more than a decade as a Consultant at The Chelsea and Westminster NHS Foundation Trust. He is the founder of OrthoLongevity™ — a unique, biology-first clinical framework he developed to address the upstream causes of joint pain and injury before considering any intervention.

The majority of his patients avoid surgery as the result of a deliberate, sequenced approach that combines advanced diagnostics, high-dose biological therapies, metabolic optimisation, movement and strength, and precisely timed intervention when the evidence supports it. For patients who do proceed to surgery, preparation under this framework produces better tissue quality, faster recovery, and more durable outcomes.

Dr Imbuldeniya offers a range of advanced biological and regenerative treatments that sit outside standard orthopaedic care. These include high-dose platelet-rich plasma therapy, hyaluronic acid gel, Arthrosamid hydrogel injection for longer-term arthritis management, and bone marrow-derived stem cell therapy for subchondral bone and cartilage pathology. He uses these as part of a structured pathway — not as standalone treatments — guided by clear clinical criteria and sequential decision points.

His surgical practice reflects the same philosophy,  specialising in meniscal repair and preservation, cartilage regeneration including transplantation procedures, and the management of patella instability. He has a specific interest in ACL reconstruction in female athletes. For hip replacement, he is one of the few UK trained surgeons who performs the Rottinger anterior-based approach — a muscle-sparing technique from Germany associated with faster recovery, reduced dislocation risk, and earlier return to full activity. Dr Imbuldeniya trained at St Bartholomew’s and The Royal London Hospital Medical School. He was appointed NHS Consultant in 2015.

Professional expertise

A Consultant Orthopaedic Hip and Knee Surgeon with extensive international training, he completed fellowship training in hip and knee surgery at the Mater Hospital in Sydney. He was awarded the prestigious European Sports Knee Surgery (ESSKA) Travelling Fellowship in Barcelona in 2018 and undertook further advanced training in Munich with leading hip and knee surgeons.

He is recognised as one of the most experienced surgeons in the UK in robotic‑assisted knee surgery and the Rottinger Hip replacement. Alongside his clinical work, he holds a Master’s degree in Global Health Policy from Imperial College London, with a particular focus on innovation in healthcare delivery.

Other contributions

• Founder of the OrthoLongevity™ clinical framework — an integrated, sequenced approach to joint health combining diagnostics, biological therapies, rehabilitation, and surgical precision.
• NHS Clinical Entrepreneur Fellow, Cohort 10, NHS England.
• BiteLabs HealthTech Fellow, Winter 2026. Development of digital patient assessment tools to support early identification of joint health risk and personalised management pathways.

Professional memberships

• Royal College of Surgeons of England
• Royal College of Surgeons of England
• British Hip Society
• British Association of Knee Surgeons
• European Sports Knee Society

ortholongevity.co.uk | YouTube: @ortholongevity | Substack: drarj.substack.com