Paragraph Number

89

Referring to FIG. 12B, the boundary of the post superior end 340 may define a rounded rim 344 shaped as a portion of a circle, from a superior perspective. The post superior end 340 and rim 344 may be semi-circular as shown, however the rim 344 may define a circular envelope 347. The post superior end 340 may be circular and rim 344 may provide increased surface contact and rotational range of motion when coupled and implanted with the PS femoral component 14 in comparison to traditionally shaped posts with a more square or rectangular shaped post. Thus, the rounded post superior end 340 and rim 344 may allow for surface contact with the femoral component 14 in contrast to the mere point or edge contact that is achieved by traditional posts that do not have these features. The CCK insert 312 may be coupled with the PS femoral component 14 to form a constrained condylar knee assembly, and this assembly may be implanted with a suitable tibial baseplate as a constrained condylar knee prosthesis. The CCK insert 312 may also be coupled with the CR femoral component 114 and implanted with a suitable tibial baseplate. Thus, all of the tibial inserts 12, 212, and 312 disclosed herein are interchangeable with both the CR femoral component 114 and the PS femoral component 14. FIG. 13 is a chart showing the potential combinations of components.

Added by DJM 1 2022