Patient mass (kg)
BMI (kg/m
2
)
Patella maximum averaged shear stress (MPa)
Flexion
Femur maximum averaged shear stress (MPa)
Flexion (degrees)
50
16
1.76
67.5
1.56
67.5
70
23
2.05
67.5
1.86
67.5
90
29
2.36
63
2.20
72
110
36
3.71
76.5
2.76
81
Table 2:
Maximum shear stress in a healthy knee, cartilage modelled as viscoelastic material for a 200 mm step descent..