Thijs, Elke
Schotanus, Martijn G. M.
Bemelmans, Yoeri F. L.
Kort, Nanne P.
Article History
Received: 4 January 2018
Accepted: 23 April 2018
First Online: 3 May 2018
Compliance with ethical standards
:
: One author, Nanne Kort, is a paid consultant for Zimmer-Biomet, Europe. The other authors certify that they have no commercial associations (e.g., consultancies, stock ownership, equity interest, patent/licensing arrangements, etc.) that might pose a conflict of interest in connection with the submitted manuscript.
: The study was approved by the ethics committee of Zuyderland-Zuyd, Number 15-T-135 and registered online at the Dutch Trial Register (, No. NTR5565).
: For this type of study formal informed consent was obtained from each included patient.