Declaration of interest
Elizaveta Kon is speaker for Fidia (Italy) and Zimmer Biomet; paid consultant for Cartiheal (Israel) and Green Bone. She owns stock in Cartiheal (Israel), Geistlich and Zimmer Biomet. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.