Increase in the Tibial Slope Reduces Wear after Medial Unicompartmental Fixed-Bearing Arthroplasty of the Knee

Figure 5

Knee kinematics out of 10 randomized cycles between 4.5 million and 5.0 million cycles of all 3 specimens. (a) AP translation: plus values define an anterior movement of the femur in relation to the tibia. There is slightly less movement between the femur and the tibia by increasing the tibia slope. (b) IE rotation: plus values define internal rotation of the tibia. There is significantly less rotation between the tibia and the femur at 4^° and 8^° tibial slopes. The thickness of the single plots shows ±SD.

(a)

(b)