Figure 1.
Hip articulation system; natural joint (left); total hip replacement (THR) (right).
Figure 2.
Correlation lambda ratio to lubrication regime [18].
Figure 3.
Head-cup configuration (left); ball-on-plane model (right).
Table 1.
Material parameters of the investigated metal and ceramic materials.
Table 2.
Patient data from Orthoload online database and gait analysis.
Figure 4.
Kinematics and contact path for a. ISO gait, b. normal walking, c. climbing stairs and d. descending stairs.
Figure 5.
Elliptical contact paths on a metal-on-metal bearing after in vitro simulator testing.
Figure 6.
Relative velocities between the main contact point on the head and the insert.
Figure 7.
Lambda-ratio of different hard-on-hard bearings for dynamic loading conditions.
Figure 8.
Distribution of lubrication regimes for hard-on-hard bearings relative to the full gait cycle.