1. Edinburgh Orthopaedics, Royal Infirmary of Edinburgh, Edinburgh, UK
2. Department of Orthopaedic Surgery, The University of Edinburgh, Edinburgh, UK
3. Department of Trauma & Orthopaedics, Mater Dei Hospital, Msida, Malta
4. School of Health and Social Care, Edinburgh Napier University, Edinburgh, UK
5. Department of Orthopaedic Surgery, Stanford University, Redwood City, California, USA