The Exeter Hip Unit Team are responsible for the innovative development of the Exeter Total Hip Replacement implant system and techniques for implantation and fixation in total hip replacement. The team run several courses a year, teaching surgeons from around the world. The Unit hosts surgeons in Exeter for periods of observation and training. The Team are invited to speak at hip surgery teaching events all over the world and run an extensive education programme out of Exeter and all over the world.

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Professor Andrew John Timperley

Specialty: Orthopaedics Sub-specialty and conditions treated: Hip surgery – primary, complex primary and revision total hip replacement.

Professional Profile: Professor John Timperley,  MBChB, FRCS (Ed), DPhil (Oxon)

Professor Timperley works in the team that develops the Exeter Hip and innovates advanced surgical techniques used in hip replacement. The Exeter Hip is one of the most implanted types of hip replacement in the world and one of the most successful in all National Joint Registries. He operates in centres that are visited by several hundred surgeons from around the world each year to learn the newest techniques. The most recent advance is a muscle-sparing posterior approach to the hip known as the SPAIRE technique which involves division (and subsequent repair) of only one small tendon. This technique allows patients to mobilise without any post-operative restriction to their activities and research is on-going to prove better long-term function.

Professor Timperley has been President of the British Hip Society and has served on the Executive of the British Orthopaedic Association. He was awarded a PhD degree at the University of Oxford and has an Honorary Chair in the College of Engineering, Mathematics and Physical Sciences at the University of Exeter.

His is involved in many research projects related to the hip and has supervised several higher degrees in Sweden, Bath, Exeter and in collaboration with Queensland University of Technology, Brisbane.

John is regularly invited to lecture and teach at international meetings. He has published numerous book chapters and multiple papers in peer-reviewed journals each year.

    • British Orthopaedic Association
      • British Hip Society
        • International Hip Society

Contact details: To find out more or to arrange an appointment, please contact Professor Timperley’s secretary, who will be more than happy to help: DDI: +44 (0) 139 226 2173 Fax: +44 (0) 203 070 0106 Email:

Mr Matthew J.W. Hubble

Specialty: Trauma and Orthopaedics Sub-specialty and conditions treated:  Complex primary and revision hip replacement.

Professional Profile: Mr Matthew J W Hubble,  MB BS FRCS (Tr&Orth) 

Matthew studied medicine at London University and graduated from St Thomas’ Hospital Medical School in 1989, where he was awarded the Beaney Prize for Surgery. Before University he served in the British Army with the Gurkhas in Hong Kong and was then for several years a TA Medical Officer with the Parachute Regiment. His early posts included teaching Anatomy at St Bartholomew’s and The Royal London Hospitals whilst he trained for his FRCS exams. He passed the Fellowship of the Royal College of Surgeons of England (FRCS) in 1993, and also of Ireland (FRCSI) later the same year. He trained in orthopaedic surgery in Bristol and the South West and was a research fellow and later lecturer in Trauma and Orthopaedic Surgery at the University of Bristol from 1995 to 2000. His research included studying the long-term outcome of primary and revision total hip replacements, and the use of bone grafts in revision hip surgery. He was awarded a British Orthopaedic Research Society Bursary, a Royal College of Surgeons Research Fellowship and a Wellcome Trust Grant for this work. He obtained the Royal Surgical Colleges Diploma in Trauma and Orthopaedic Surgery (FRCS Tr&Orth) in 1999. In 2000 he then undertook a surgical fellowship in Melbourne, Australia, specialising in hip, complex trauma surgery.

Matthew was appointed as a Consultant Orthopaedic and Trauma Surgeon in Exeter in 2001, operating at the Princess Elizabeth Orthopaedic Centre and the Exeter Nuffield Hospital. Mr Hubble specialises in hip surgery, particularly primary, complex and revision hip joint replacement and hip fracture surgery.

Mr J R Howell

Trauma and Orthopaedics
Sub-specialty and conditions treated:
Sub-Specialty and conditions treated: Surgery of the young adult hip, complex primary and revision hip replacement.

Professional Profile: Mr Jonathan R. Howell,  MBBS, MSc, FRCS (Tr&Orth)

I have been a consultant at the Princess Elizabeth Orthopaedic Centre for over 10 years and I feel privileged to be a member of our world-renowned team of hip surgery specialists. I believe Exeter to be a special place, where our team strives to uphold the principles of innovation, surgical excellence and attention to detail established by our founder Professor Robin Ling.

I studied medicine at King’s College, London, after which I completed a short service commission for six years with the Royal Air Force. I was awarded the Fellowship of the Royal College of Surgeons in 1996 and I then came to the South West to start six years of orthopaedic training.

From my first experience of a hip surgery course at Exeter, I knew that I wanted to be a part of this outstanding unit. I undertook research with Robin Ling, which led to The British Orthopaedic Research Society Young Investigator of the Year award in 1999 and an MSc degree in 2003. In 2002  I moved to Vancouver for a year with my family, to study North American techniques of complex hip surgery, and on my return I joined the Hip Team at Exeter, firstly as a fellow and then as a consultant.

Since my appointment I have continued to develop my skills in complex hip replacement and revision surgery, and hip preservation techniques. My ongoing research into hip surgery has resulted in several publications and I was elected Treasurer of the British Hip Society in 2013

Mr Matthew J Wilson

Specialty: Trauma and Orthopaedics

Sub-Specialty and conditions treated:  Surgery of the young adult hip, treatment of femoro-acetabular impingement (FAI), complex primary and revision hip replacement.

Professional Profile: Mr Matthew J Wilson,  MB BS FRCS (Tr&Orth) 
Matthew Wilson was appointed as a Consultant Trauma and Orthopaedic Surgeon at the Princess Elizabeth Orthopaedic Centre in Exeter in 2010. His elective interest is now specialised to hip surgery – preservation, replacement and revision.

Mr Wilson studied medicine at St Bartholomew’s Hospital Medical College, at the University of London, qualifying in 1997. After surgical training in Reading, Oxford and Nottingham, Matthew completed a trauma fellowship at Massachusetts General Hospital in Boston. Following this, he moved, with his family, to the South-West of England to spend one year as a Hip Fellow here in Exeter. During this time he developed an interest in disorders of the young adult hip and subsequently completed further sub-speciality training, in Cambridge, in the field of young adult hip surgery. Over the course of this fellowship, Matthew had the opportunity to assess and treat many national and international level athletes from the worlds of rugby, rowing, football, squash, tennis and gymnastics. Matthew is one of a select group of surgeons in the country who is fellowship-trained in hip arthroscopy.

 Together with his colleagues in the Exeter Hip Unit, Mr Wilson trains surgeons from around the world in the techniques of hip surgery. He runs the international surgeon visitor programme and is the lead for Infection Control at PEOC. He sits on the National Joint Registry RCC Committee, is Secretary of the BHS Non-Arthroplasty Hip Registry User Group and is on the Editorial board for the Annals of the Royal College of Surgeons of England.

Mr Al-Amin M Kassam

Specialty: Trauma and Orthopaedics

Sub-Specialty and conditions treated: Complex primary andrevision hip replacement.

Professional Profile:Mr Al-Amin M Kassam MBBS, BSc (hons), FRCS (Tr&Orth)

Al-Amin Kassam studied medicine at Guys, Kings and St Thomas’ School of Medicine, and qualified in 2005. He undertook his basic surgical training in at Guys and St Thomas’, Cambridge and Exeter.

Al-Amin undertook his higher surgical training in Trauma and Orthopaedic Surgery in the South West Peninsula region and has worked in Exeter, Plymouth and Torbay. He was awarded his Fellowship of the Royal College of Surgeons in 2016. He undertook the prestigious complex and revision hip and knee fellowship at the world renowned Nuffield Orthopaedic Centre in Oxford with a special interest in bone and joint infections. He returned to Exeter to become a Ling fellow within the Exeter hip unit before being appointed as a Consultant in Exeter in 2018. He specialises in complex primary and revision hip arthroplasty.

Al-Amin has a special interest in medical leadership and was awarded a place on the British Orthopaedic Association (BOA) Clinical Leaders Programme and has also achieved a Level 7 certificate in Leadership and Management, awarded by the Chartered Management Institute.

Mr John Charity

Specialty: Trauma and Orthopaedics

Sub-Specialty: Elective and Trauma Hip Surgery

Professional Profile: Mr John Charity,  M.D. M.R.C.S. ChM T&O (Ed)  Associate Specialist in Trauma and Orthopaedics,

John Charity qualified in 1996 at the Federal University of São Paulo, Brazil. After successfully completing a full residency programme and obtaining the title of Specialist in Trauma and Orthopaedics through the National Board Examinations by the Brazilian Society of Trauma and Orthopaedics in 2001, he moved to Exeter with his wife for a visiting fellowship at the Hip Unit in 2001.

He then joined the visiting Clinician Programme at the lower limb adult reconstruction unit at the Mayo Clinic in Rochester, Minnesota, USA in 2002. Later that year he was offered a permanent position at the Princess Elizabeth Orthopaedic Centre in Exeter and became a member of The Royal College of Surgeons of Edinburgh in 2005. In 2009 he was appointed Associate Specialist in Trauma and Orthopaedics for the Hip Unit, his practice focusing in elective and trauma hip surgery.

He has a special interest in related research and has been involved in many of the projects produced by the Hip Unit. He is actively involved with medical education, surgeon training activities in hip arthroplasty and audit activities in hip fracture care at this Trust, being the local lead clinician for the National Hip Fracture Database.

In 2015 he completed his Masters degree (ChM) in Trauma and Orthopaedics with distinction from the University of Edinburgh and The Royal College of Surgeons of Edinburgh, being awarded the Sir Harold Stiles Medal.