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Mr Alex Liddle

Senior Lecturer in Orthopaedic Surgery and Consultant Orthopaedic Surgeon 6103646Orthopaedics
Photo of Mr Alex Liddle


Mr Liddle graduated from Imperial College in 2004 and completed his orthopaedic surgical training in the North West London and Stanmore training schemes. After completing his DPhil (PhD) at the University of Oxford he was appointed as NIHR Clinical Lecturer at the UCL Institute of Orthopaedics at the Royal National Orthopaedic Hospital at Stanmore. Following subspecialist (fellowship) training in complex primary and revision hip and knee replacement in Stanmore and in all aspects of knee surgery at the Nuffield Orthopaedic Centre in Oxford he was appointed as Senior Lecturer in Orthopaedic Surgery at Imperial College and Consultant Orthopaedic Surgeon at Imperial College Healthcare NHS Trust in 2019.

Mr Liddle specialises in all aspects of knee surgery including soft tissue (sports) surgery, partial, primary and revision knee replacement, as well as hip replacement surgery. He carries out trauma surgery at the Major Trauma Centre at St Mary’s Hospital with an interest in periarticular and periprosthetic fractures around the hip and knee.

Mr Liddle has published influential papers in all the major orthopaedic journals and in general medical journals including the Lancet and BMJ Open. He provides expert review for the BMJ, the National Institute for Health Research and a number of orthopaedic journals, and is on the Editorial Board of the Bone and Joint Journal, the foremost orthopaedic publication in Europe. He has developed an international reputation for expertise in the field of partial knee replacement and has been invited to talk and write on the subject in the UK, Europe and the USA.

Special interests

Partial Knee Replacement (unicompartmental and patellofemoral)
Total Knee Replacement
Revision Knee Replacement
ACL reconstruction
Arthroscopic knee surgery
Total Hip Replacement