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Stephen McDonnell

MBBS BSc MA (Cantab) MD MRCS FRCS (Tr & Orth)
Associate Professor - Consultant Knee & Hip Surgeon Sports and Joints

Knee & Hip

Prof. McDonnell is an Associate Professor at the University of Cambridge and a Specialist Knee Surgeon working at Addenbrookes Hospital. He has been a consultant for ten years - since 2013, having trained in centres of excellence within the UK and abroad. 

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 (Oxford) into early knee arthritis. He has a particular 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 Australia's largest specialist orthopaedic Groups. 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.

Prof. 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 managing early arthritis.
  • Knee replacement surgery specialises in partial, total and revision knee replacements.
  • High Volume knee resurfacing / unicompartmental partial knee replacement surgeon
  • Management of Hip arthritis and Hip replacements

He has a special interest, and the majority of his knee joint replacements are knee resurfacings / partial unicompartmental knee replacements - only replacing the damaged area of the knee, which have lower risks from surgery and can provide a superior functional outcome for patients.

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 motorsports doctor at Silverstone for the Formula One British Grand Prix.

Prof. McDonnell is actively involved in research, 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 is trying to improve at tennis.

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Our Testimonials

Mr McDonnell

Nuffield Hospital Cambridge
Everything is going on fine with me on and am very pleased with the outcome the operation went according to the plan I was given thanks again for your Fabulous work..