1. Department of Trauma and Orthopaedic Surgery, Azienda Ospedaliera Universitaria, San Giovanni di Dio e Ruggi D'Aragona, Via San Leonardo 1, Salerno 84131, Italy
2. Emirates-Integra Medical and Surgical Centre, Dubai, United Arab Emirates
3. Department of Orthopaedics, Podiatry, and Rehabilitation, Fort Belvoir Community Hospital, 9300 Fort Belvoir, VA 22060, USA
4. Queen Mary University of London, Barts and the London School of Medicine and Dentistry, Centre for Sports and Exercise Medicine, Mile End Hospital, 275 Bancroft Road, London E1 4DG, England
5. Institute of Science and Technology in Medicine, Keele University School of Medicine, Thornburrow Drive, Stoke-on-Trent ST5 5B, England