Paragraph Number

125

FIGS. 27A-27E show a posterior view of the composed assembly 2400 in 90 degree flexion, in a left knee. FIG. 27A is a medial-lateral cross-section perspective view of the assembly 2400. The medial condylar articulation surface 2404 meets the medial articulation surface 2420 at a medial dwell point 2435. The lateral condylar articulation surface 2405 meets the lateral articulation surface 2421 at a lateral dwell point 2436. FIGS. 27B and 27C show the medial dwell point 2435 and the lateral dwell point 2436 at what may be considered a starting position, in 90 degrees flexion. FIG. 27D is an anterior-posterior cross-section through the lateral tibial compartment 2414 of the insert 2410. The medial ramp 2419 is visible (in the background) and shows the height difference between the medial posterior side 2415 and the lateral posterior side 2416. FIG. 27E is an anterior-posterior cross-section through the medial tibial compartment 2413 of the insert 2410; the medial ramp 2419 is visible and is occluding the lower lateral posterior side 2416. Relative to 0 degrees flexion, the medial dwell point 2435 has moved substantially anteriorly and outwardly toward the medial perimeter 2426 and the lateral dwell point 2436 has not moved significantly. During the transition from extension to flexion, the medial dwell point 2435 has moved anteriorly from the medial ramp 2419 toward the medial low point 2428. The lateral dwell point 2436 has not substantially moved along the lateral articulation surface 2421.

Added by DJM 1 2022