¹ Frimley Park Hospital, Trauma and Orthopaedics, Camberley, United Kingdom

¹ Queens Medical Centre, Nottingham, United Kingdom

¹ Wirral University Hospitals NHS Trust, Wirral, United Kingdom

² Wirral University Hospitals NHS Trust, Foot and Ankle, Wirral, United Kingdom

³ Wirral University Hospitals NHS Trust, Coding, Wirral, United Kingdom

⁴ City University, London, United Kingdom

¹ University Hospital of Wales, Cardiff, United Kingdom

¹ Green Templeton College, Oxford, United Kingdom

¹ Arrowe Park Hospital, Orthopaedics, Liverpool, United Kingdom

² Arrowe Park Hospital, Wirral, United Kingdom