Fig. 1

a The Pantheon PFR implant; b Diagrammatic representation showing (a) the endosteal portion of the fully porous collar, and (b) the extra-osteal and endosteal porous bridging collar
a The Pantheon PFR implant; b Diagrammatic representation showing (a) the endosteal portion of the fully porous collar, and (b) the extra-osteal and endosteal porous bridging collar