Paragraph Number

100

Referring to FIGS. 21A-21E, an alternative embodiment of a tibial insert 1212 is shown. The tibial insert 1212 may be referred to as a cruciate retaining tibial insert 1212 (or “CR insert”). In a system of the disclosure, the CR insert 1212 may be implanted with the CR femoral components 114, 1114, 2114 and a tibial baseplate component (See FIG. 24A) to form a cruciate retaining knee prosthesis system. The CR insert 1212 may include a fixation side 1220, which may be an inferior side, opposite an articulation side 1222, which may be a superior side. The articulation side 1222 may include a medial tibial compartment 1224 having a medial condylar articulation surface 1225 and a lateral tibial compartment 1226 having a lateral condylar articulation surface 1227. A central portion 1228 may separate the medial tibial compartment 1224 from the lateral tibial compartment 1226. A recess 1245 may be formed posterior to the central portion 1228, between the medial and lateral tibial compartments 1224, 1226, and may provide room for a posterior cruciate ligament. The CR insert 1212 may further include an insert base 1246 and an engagement feature 1248 for engagement with a tibial baseplate component.

Added by DJM 1 2022