An orthopaedic implant system comprises an implant component (14) having a bone-engaging surface (28), and an augment component (200) which can be placed selectively against the bone-engaging surface of the implant component. The augment component comprises a porous metal body having a bone-engaging surface (212) and a second surface (250) extending from the bone-engaging surface. The bone-engaging surface has a static coefficient of friction and the second surface has a lower static coefficient of friction, and the body has a void space of at least 60% by volume.
