Maarten van Egmond

36 Chapter 2 ACKNOWLEDGEMENTS The authors would like to thank Maarten Anderegg and Annelijn Slaman for providing us with postoperative complication data, Sander Steenhuizen for measuring patients on preoperative functional status and Ed Hull for editing this manuscript. This paper is not based on a previous communication to a society or meeting. ROLE OF THE FUNDING SOURCE The authors did not receive any funding or grants in support of their research for or preparation of this work. CONFLICT OF INTEREST STATEMENT The authors declare no conflict of interest.