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Mr Sam Rajaratnam

Consultant Orthopaedic Surgeon (Knee Specialist)
Practice Manager (direct dial) 0203 494 4010

Orthopaedics, Plastic Surgery and Rheumatology Institute

Sees patients at Cleveland Clinic London Hospital , Portland Place Outpatient Centre

Speaks English

Clinical Interests

  • ACL Injuries
  • Arthritis of the Knee
  • Joint Effusion, Knee
  • Knee Cartilage Injury
  • Knee Fractures
  • Knee Injuries
  • Knee Ligament Injury
  • Osteoarthritis of the Knee
  • Patellofemoral Syndrome
  • Sports Injuries
  • Torn Meniscus


  • ACL Reconstruction
  • ACL Revision
  • Knee Arthroscopy
  • Knee Replacement
  • Knee Surgery
  • Ligament Repair
  • Ligament Replacement
  • Meniscal Surgery
  • Minimally Invasive Knee Surgery
  • Partial Knee Replacement
  • Revision Knee Replacement
  • Robot-Assisted Knee Surgery
  • Robotic Knee Replacement Surgery (ROSA)
  • Surgical Treatment of Arthritis

Biography & Education

About Mr Sam Rajaratnam

Mr Sam Rajaratnam FRCS (Tr. & Orth.) is an internationally renowned Consultant Orthopaedic Surgeon specialising in knee replacement surgery and sporting injuries of the knee. Mr Rajaratnam has performed 7000+ knee replacements with excellent outcomes, and is considered the leading expert on rapid recovery and lower pain scores following knee surgery. He has one of the lowest revision (failure) rates and best outcomes (PROMS) for knee replacement on the UK National Joint Registry and is an advocate for transparent, outcome driven care. With Consultant Anaesthetist Dr Barry Phillips, he has developed techniques to reduce post-operative pain and enhance rapid recovery following knee surgery. He is an expert on robotic assisted knee replacement surgery and was first to implement ROSA robotic technology in the UK private sector. Mr Rajaratnam regularly treats professional sportspeople with soft tissue knee injuries, and has performed 2000+ ACL reconstructions and other soft tissue operations as day case procedures. He treats members of the Professional Football Association and is on the faculty of the FIFA Football medicine conference. Mr Rajaratnam trained at Guy’s and St Thomas’s Hospital and qualified with a First Class degree in anatomy and an MBBS in 1997. His higher specialty training was via the Royal College of Surgeons and at numerous centres of excellence in the UK and Australia. He won the highest honour at the end of his surgical training, awarded the Walter Mercer Gold Medal in 2006. He was the British Orthopaedic Association Ambassador to Hong Kong in 2007 and has been a consultant surgeon since 2008. He has an international reputation as a leading knee surgeon, and is regularly visited by other surgeons wanting to learn the latest knee surgery techniques.

Professional Memberships

Royal College of Surgeons British Orthopaedic Association British Association of Knee Surgery International Cartilage Regenerations and Joint Preservation Society General Medical Counsel

GMC Number


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