1. Department of Surgery, Central Finland Hospital, Jyväskylä, Tampere, Finland
2. Center for Musculoskeletal Diseases, Tampere University Hospital, Tampere, Finland
3. Faculty of Medicine and Health Technology, Tampere Univeristy, Tampere, Finland
4. Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
5. Emergency Department, Mikkeli Central Hospital, Mikkeli, Finland