Mr. Derek Bennett is Chairman of the Orthopaedic Department, Mayo General Hospital and has been an Orthopaedic Surgeon in Mayo General Hospital for the last 12 years and in the Galway Clinic for the last 11 years. He is a member and former chairman of the Irish Faculty of the AO Organisation. He is a member of the European Board of Orthopaedic Surgery. He is Vice President Section of Orthopaedics of the Royal Academy of Medicine in Ireland. He is a board member of the Irish American Orthopaedic Society. He is a board member of the Irish Osteoporosis Society. He has a particular interest in all aspects of minimally invasive primary hip and knee replacement surgery and complex revision hip and knee replacement surgery. He is the Irish pioneer for rapid recovery surgery after hip and knee replacement and has introduced this programme into Mayo General Hospital and the Galway Clinic.