#$%^&*AU2008201467B220120927.pdf#####ABSTRACT A mobile tibial assembly includes a tibial tray and a tibial insert configured to move relative to the tibial tray. The tibial insert includes a platform having an upper bearing surface and a stem extending downwardly from a bottom surface of 5 the insert. The tibial tray includes a corresponding recess, such as a cavity and/or a channel, configured to receive the stem therein such that the stem and the recess cooperate to constrain the movement of the tibial insert relative to the tibial tray. 31/03/08,kn 17224 specification,211/4 62 14 66 60 7 64 578 24 20 140 42 12 26 48 22 Fig. 1
