Influence of Different Patellofemoral Design Variations Based on Genesis II Total Knee Endoprosthesis on Patellofemoral Pressure and Kinematics

Table 1

Sequence of the five designs for observing maximum pressures for all ten measured knee specimens. Data is averaged over the flexion range of 15°–50°, scaling ranges from 1 = lowest pressure to 5 = greatest pressure. The major interindividual differences as well as the poor performance of the flat design are clearly evident.

	Original	Flat	Laterally high	Medially high	Both high
Knee 1	2	5	4	3	1
Knee 2	4	5	3	2	1
Knee 3	2	5	4	3	1
Knee 4	4	3	1	2	5
Knee 5	1	5	2	4	3
Knee 6	2	4	5	1	3
Knee 7	3	4	5	1	2
Knee 8	4	5	3	1	2
Knee 9	1	5	4	2	3
Knee 10	2	4	1	3	5
Mean	2.5	4.5	3.2	2.2	2.6