Academic Surgical Unit

Prof Richard Field

Professor of Orthopaedic Surgery

Director of Research and Clinical Lead for the Academic Surgical Unit

 Consultant Orthopaedic Surgeon

Richard Field qualified from the Westminster Hospital in 1980. After junior hospital posts in London, he completed a PhD in Cambridge; where he became a junior Fellow of Magdalene College. His specialist Orthopaedic training was undertaken in London, Cambridge and Melbourne.

In 1994 Richard was appointed as a consultant Orthopaedic Surgeon, with a special interest in hips, at St Helier Hospital, Carshalton. In his early years at St Helier, he introduced hip arthroscopy, hip preserving surgical procedures and many innovations in hip replacement surgery. He also established a research department and outcome programme. Since 2004, this research team has worked at both St Helier and the South West London Elective Orthopaedic Centre (the EOC) to develop a world renowned research programme with many national and international collaborations. In 2013 he was awarded a personal Chair at St George’s, University of London in recognition of his work at St Helier and the EOC.

Prof Field lectures widely and is a regular invited faculty member at many national and international Orthopaedic meetings and is a member of the Council of the British Hip Society and the International Society for Hip Arthroscopy. He continues to supervise MD(Res) and PhD students and has regular UK and overseas visiting Fellows in his team.

Prof Deiary Kader 

Professor of Orthopaedic Surgery

Consultant Trauma and Orthopaedic Surgeon

Professor Kader is a fellowship trained knee and a sport medicine surgeon with extensive experience in knee ligament reconstruction, primary/revision knee arthroplasty, patellofemoral joint instability and multiligament reconstruction.

After finishing his type one Specialist Registrar training in Scotland and knee fellowship in Sydney and Newcastle in 2005, he was appointed as consultant trauma and orthopaedic surgeon in the QEH NHS trust in Gateshead and Newcastle Nuffield private hospital where he worked for more than ten years. Since 2010 professor Kader has been dedicating a significant amount of his time to humanitarian work with NGMV medical charity ( and more recently with the International Committee of the Red Cross (ICRC) ( at their war wounded trauma reconstruction centre in Tripoli/Lebanon.

He is also a visiting professor in the Faculty of Health and Life Sciences in Northumbria University and a director of OASIR Research group ( In the past 8 years he has developed an extensive research interest in patellar instability and tendinopathy. He has published more than 88 scientific papers, book chapters and articles. He is also the co-author of two of the best selling Postgraduate Orthopaedic books in the UK.

Prof David Sochart

Professor of Orthopaedic Surgery 

Consultant Orthopaedic Surgeon 

Professor Sochart graduated from Aberdeen University Medical School and undertook Higher Surgical Training in the North West of England, with specialist joint replacement Fellowships at the Centre for Hip Surgery, Wrightington and the Royal Orthopaedic Hospital, Birmingham. In 2019, after Consultant in Edinburgh and Manchester, he joined The Academic Surgical Unit at SWLEOC to specialise solely in joint replacement surgery and further his interests in implant development, research and teaching.

Awards during training included the International Prize for Orthopaedic Research, the Charnley Prize (twice) the Malimson Bursary, the BOA/Wishbone Trust Travelling Fellowship, the Smith and Nephew Research and Travel Award and an award for ‘Outstanding Contribution to Research’ by the Centre for Hip Surgery, Wrightington. As a consultant he was the first BOA Ambassador to the Hong Kong Orthopaedic Association and the first recipient of the British and American Hip Societies Combined Travelling Fellowship.

Professor Sochart was involved in the establishment of the National Joint Registries in both Scotland and England and serves on the Orthopaedic Data Evaluation Panel (ODEP) and the Beyond Compliance Committee (BC). He is also a member of the Professional Affairs Committee of the British Hip Society and a reviewer for the Bone and Joint Journal.

Mr Vipin Asopa 

Consultant Trauma and Orthopaedic Surgeon 

Mr. Vipin Asopa is a Specialist Hip and Knee Surgeon at South West London Elective Orthopaedic Centre, Epsom. He was born and brought up in Southampton and went to King Edward VI School before going to Bristol University to study Medicine. He qualified in 1998 and went on to successfully complete his basic surgical training at the prestigious Hammersmith Hospital in 2002 before embarking on a PhD at Imperial College, London. In 2007, he started his basic surgical training on the Charing Cross North-West Thames rotation and became a Fellow of the Royal College of Surgeons (Trauma and Orthopaedic Surgery) in 2011. Mr. Asopa has completed a Sports Surgery fellowship in Adelaide, South Australia followed by another hip and knee joint surgery fellowship in Reading, Berkshire. He also completed a trauma fellowship in Wilhelminenspital, Vienna and has worked as a substantive consultant in North-Middlesex University Hospital between 2014-2019, before moving to SWLEOC Academic Surgical Unit. His research interests include the use of stem-cell therapy and using artificial intelligence to improve patient outcomes following surgery.

Irrum Afzal

Research Projects Manager

Irrum graduated from Imperial College, London with a Distinction in Masters of Public Health (MPH) and was subsequently appointed to lead the orthopaedic research department under the supervision of Professor Richard Field at the South West London Elective Orthopaedic Centre. Irrum has comprehensive knowledge of quantitative, qualitative research, statistics and research governance and is a professional member to the Institute of Clinical Research (MICR) and the Research Quality Association (MRQA). Irrum uses this knowledge to under undertake, deliver and manage multiple research and audits projects with the aim to improve evidence based medicine in Orthopaedics. Irrum supports the SWLEOC Outcomes Database and Patient Reported Outcome Measures at SWLEOC. Irrum works closely with the consultants at SWLEOC and the management team providing them with regular outcome data. Irrum plays an active role in the Orthopaedic Research and Education Foundation and the Imperial College Alumni service.