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Home Page link / Find a Consultant / Mr Sam Rajaratnam
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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


Cleveland Clinic London Hospital photo

Cleveland Clinic London Hospital
33 Grosvenor Place
London SW1X 7HY

Map & Directions
Portland Place Outpatient Centre photo

Portland Place Outpatient Centre
24 Portland Place
London W1B 1LU

Map & Directions


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 over 5300 knee replacements with excellent outcomes, and is an 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 replacements on the UK National Joint Registry and is an advocate for transparent, outcomes driven healthcare. He is an expert in robotic assisted knee replacement and was first to implement ROSA robotic technology within the UK private sector. Mr Rajaratnam regularly treats professional and amateur sportspeople with soft tissue injuries to their knee, and performs over 120 ACL reconstructions and other soft tissue procedures each year as day case procedures. He regularly treats members of the Professional Football Association and is on the faculty of the FIFA Football medicine conference each year. Mr Rajaratnam originally trained at Guy’s and St Thomas’s Hospital in London and qualified with a First Class degree in anatomy and an MBBS in 1997. He trained via the Royal College of Surgeons, England at numerous centres of excellence in the UK and then Australia. Mr Rajaratnam was awarded the Walter Mercer Gold Medal for the best performance throughout Great Britain and Ireland in the final FRCS Orthopaedics examination in 2006. He was the British Orthopaedic Association Ambassador to Hong Kong in 2007 and now enjoys an excellent international reputation as a leading knee surgeon and a key opinion leader in his field.

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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