Paragraph Number

99

The tapered sides 1032, 1034 of the post 1030 may permit natural articulation of the CR femoral component 2114 with the PS insert 1012, which may not be achievable if the post 1030 were not tapered. For example, if the post 1030 had straight sides instead of tapered sides, the wider width of the post 1030 at the base 1038 of the post 1030 may interfere with the medial and lateral portions 2170, 2172 of the internal articulation surface 2154 of the condyles 2160, 2164. When the PS femoral component 1014 is coupled with the PS insert 1012 to form assembly 1010, as in FIGS. 14 and 15, the circular shape of the post superior end 1040 in combination with the tapered medial and lateral surfaces 1032, 1034 of the post 1030, may permit the PS femoral component 1014 to articulate relative to the PS insert 1012 in the manner of a posterior stabilized femoral component. However, when the PS insert 1012 is paired and implanted with the CR femoral component 2114, the resultant assembly 2110 may provide the native articulation and rotation of a cruciate retaining implant.

Added by DJM 1 2022