Paragraph Number

88

The post 330 may have an articulation surface 331 extending around the post 330 on the medial, posterior, lateral, and anterior aspects of the post 330. The articulation surface 331 may include a medial articulation surface 332, a lateral articulation surface 334, an anterior post surface 336, and a posterior articulation surface 342. The medial and lateral articulation surfaces 332, 334 may taper slightly inward from the post superior end 340 to the post base 338 of the post 330 relative to an insert midline vertical axis 2. However, some embodiments of CCK insert 312 may include no taper of the medial and lateral articulation surfaces 332, 334. The medial articulation surface 332 may be continuous with the medial condylar articulation surface 325, and the lateral articulation surface 334 may be continuous with the lateral condylar articulation surface 327. The anterior post surface 336 may extend between the medial and lateral surfaces 332, 334 and may be convexly rounded. The anterior post surface 336 may taper outward from the post superior end 340 to the post base 338 relative to the midline axis 2, as best seen in FIG. 12F. In other embodiments of the CCK insert 312, the anterior post surface 336 may include less taper, more taper, and/or no taper. The post 330 of the CCK insert 312 may be wider and bigger in diameter than the post 30 of PS insert 12, for example to provide increased stability in the case of removal of the collateral ligaments.

Added by DJM 1 2022