1 Department of Orthopaedics, University Clinical Hospital Mostar, Mostar, Bosnia and Herzegovina.
2 Department of Orthopaedics and Traumatology, Kepler University Hospital Linz, Linz, Austria.
3 Department of Orthopaedics, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
4 Center of Orthopaedics and Traumatology, University Hospital Brandenburg/Havel, Brandenburg Medical School Theodor Fontane, Brandenburg a.d.H., Germany.
5 Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg a.d.H., Germany.
6 Center of Orthopaedics and Traumatology, University Hospital Brandenburg/Havel, Brandenburg Medical School Theodor Fontane, Brandenburg a.d.H., Germany. Robert.Prill@mhb-fontane.de.
7 Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg a.d.H., Germany. Robert.Prill@mhb-fontane.de.