1. Department of Orthopaedic Surgery, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
2. Department of Orthopaedic Surgery, HagaZiekenhuis, The Hague, The Netherlands
3. Xpert Orthopedie, Amsterdam, The Netherlands
4. Department of Orthopaedic Surgery, Onze Lieve Vrouwe Gasthui, Amsterdam, The Netherlands
5. Department of Surgery and Perioperative Care, Dell Medical School, The University of Texas at Austin, Austin, Texas, USA
6. Department of Orthopaedic Surgery, Groningen University Medical Centre, Groningen, The Netherlands