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Table 1 Material property of spinal components

From: Analysis and improvement of the three-column spinal theory

Material

Young’s Modulus (MPa)

Poisson’s Ratio

Area (mm2)

Element type

Element numbers

Cortical bone

12,000.00

0.30

C3D4

340,465

Cancellous bone

100.00

0.20

C3D4

413,282

Endplate

25.00

0.25

C3D8R

46,849

Nucleus pulposus

0.20

0.49

C3D8R

84,761

Annulus ground substance

4.00

0.40

C3D8R

163,585

Annulus fiber

4.20

0.45

truss

726

Anterior longitudinal ligaments

20.00

0.30

63.70

spring

30

Posterior longitudinal ligaments

20.00

0.30

20.00

spring

30

Intertransverse ligament

58.70

0.30

3.60

spring

30

Ligamentum flavum

19.50

0.30

40.00

spring

30

Interspinous ligament

11.60

0.30

40.00

spring

12

Supraspinous ligament

15.00

0.30

30.00

spring

3

Capsular ligament

32.90

0.30

60.00

spring

30