¹Sunderland Royal Hospital, Trauma and Orthopaedics, Sunderland, United Kingdom

¹Sheffield Teaching Hospitals NHS Foundation Trust, Trauma and Orthopaedics, Sheffield, United Kingdom

²Ninewells Hospital, Trauma and Orthopaedics, Dundee, United Kingdom

³University Hospital of South Manchester, Trauma and Orthopaedics, Manchester, United Kingdom

¹Jurong Health, Singapore, Singapore

¹University Hospital Aintree, Liverpool, United Kingdom 

¹Hairmyres Hospital, East Kilbride, United Kingdom

¹North Bristol NHS Trust, Department of Trauma and Orthopaedics, Bristol, United Kingdom

²Royal Cornwall Hospitals NHS Trust, Department of Trauma and Orthopaedics, Truro, United Kingdom