Mr Stephen McDonnell


Mr McDonnell is a University Lecturer in Orthopaedics at the University of Cambridge and Consultant Knee and Hip Surgeon working at Addenbrookes Hospital. He has been a consultant since 2013 having trained in centres of excellence within the UK and aboard. 

He undertook his medical training at UCL in London and his surgical training in Oxford, based at the Nuffield Orthopaedic Centre.  He has a strong research interest undertaking his thesis at the Botnar Research Centre into early knee arthritis. He has a special interest in partial knee replacements, which have lower risks from surgery and can provide a superior functional outcome for patients.

His international training was with the MOG (Melbourne Orthopaedic Group) one of the largest specialist orthopaedic Groups in Australia.  In 2018 was awarded the British Association of Knee Surgeons Traveling Fellowship to New York and Boston to gain an international perspective on the latest knee preservation techniques.

Mr McDonnell’s current practice is aimed at:

  • The management of sports injuries; including ACL reconstructions, and meniscal repair surgery

  • Knee pain and arthritis; with particular expertise in the management of early arthritis.

  • Knee replacement surgery; specialising in both partial and total knee replacements.

  • Management of Hip arthritis and Hip replacements

He believes that each patient should be prescribed a personalised package of care and treatment program.  He has a keen interest in sport and has been the match orthopaedic surgeon for first class rugby internationals, and has been a regular motor sport doctor at Silverstone for the Formula One British Grand Prix.

Mr McDonnell is actively involved in research and education and lectures locally, nationally and internationally. He is a reviewer for the Bone and Joint Journal, The Knee and The British Journal of Sports and Exercise Medicine.   He has developed the undergraduate orthopaedic curriculum, inspiring orthopaedic medical students to be orthopaedic surgeons of the future.

When not at work he it trying to improve at tennis.

Special Interests

  • Knee Injuries - Sports / Skiing

  • Soft Tissue Knee  - Meniscus / ACL reconstructions

  • Cartilage Repair

  • Management of Early Arthritis (Hip & Knee)

  • Hip Replacements

  • Partial Knee Replacements

  • Total Knee Replacements

  • Revision Knee replacements

  • Knee Trauma

Mr McDonnell practice finances are managed by CUTS - Cambridge University Technical Services

Mr McDonnell practice finances are managed by CUTS - Cambridge University Technical Services