1. Department of Trauma and Orthopaedics, Royal Infirmary of Edinburgh , 51 Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA , United Kingdom
2. Department of Plastic Surgery, St. George’s Hospital , Blackshaw Road, Tooting, London SW17 0QT , United Kingdom
3. Department of Trauma and Orthopaedics, Imperial College Healthcare NHS Trust , Praed Street, London W2 1NY , United Kingdom