1. Department of Orthopaedics and Traumatology, Tampere University Hospital, Elämänaukio, Kuntokatu 2, 33520 Tampere, Finland
2. Mikkeli Central Hospital, Porrassalmenkatu 35-37, 50100, Mikkeli, Finland
3. University of Eastern Finland, School of Medicine, Yliopistonranta 1, 70211, Kuopio, Finland
4. Department of Surgery, Central Finland Hospital, Keskussairaalantie 19, 40620, Jyväskylä, Finland
5. Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland