1 Center of Orthopaedics and Traumatology, University Hospital Brandenburg/Havel, Brandenburg Medical School Theodor Fontane, 14770, Brandenburg, Germany. Robert.Prill@mhb-fontane.de.
2 Faculty of Health Sciences Brandenburg, Department of Orthopaedics and Traumatology, Brandenburg Medical School Theodor Fontane, Hochstrasse 29, 14770, Brandenburg, Germany. Robert.Prill@mhb-fontane.de.
3 Ergonomics and Biomedical Monitoring Laboratory, Department of Physiotherapy, Faculty of Health Sciences, Wroclaw Medical University, 50-367, Wroclaw, Poland.
4 Center of Orthopaedics and Traumatology, University Hospital Brandenburg/Havel, Brandenburg Medical School Theodor Fontane, 14770, Brandenburg, Germany.
5 Faculty of Health Sciences Brandenburg, Department of Orthopaedics and Traumatology, Brandenburg Medical School Theodor Fontane, Hochstrasse 29, 14770, Brandenburg, Germany.
6 Department of Orthopaedics, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.