Biomedical Engineering Reference
In-Depth Information
Table 6.1
Material properties of the reconstructed 3D models
Materials
Young's modulus, E (MPa)
Poisson ratio, m
Cortical bone
12,000
0.20
Cancellous bone
33
0.25
Implant components (CoCrMo)
210,000
0.30
Carpal ball (UHMWPE)
1,400
0.30
Bone graft
100
0.20
1,000
5,000
Table 6.2
Relative loading on the metacarpal bones
Thumb
Index
Long
Ring
Little
Cross-sectional area (mm
2
)
126.30
77.00
84.15
57.60
80.20
Load (N)
255.60
120.30
106.40
88.00
77.30
Pressure (MPa)
2.02
1.56
1.26
1.53
0.96
Fig. 6.3
Applied boundary condition simulating static hand grip action
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