1. Orthopaedics and Traumatology Department, Medical Faculty, Selçuk University, Konya 42250, Turkey
2. AO Research Institute Davos, 7270 Davos, Switzerland
3. Department of Trauma, University Hospital Zurich, 8091 Zurich, Switzerland
4. University Multiprofile Hospital for Active Treatment ‘Prof. Stoyan Kirkovitch’, Trakia University, 6003 Stara Zagora, Bulgaria