Conflict of interest
GC, HH, ILG, and KN declare no conflict of interest. FDM and PC are part of the speakers bureau for Gruppo Bioimpianti. PC receives a royalty from Gruppo Bioimpianti. NCB receives payment and benefit from DePuy Johnson and Johnson and Zimmer Biomet, and sits on the editorial board of CORR, BJJ, OJSM, JISAKOS, and KSSR.