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Table 1 The material properties used in finite element models

From: Reducing the extent of facetectomy may decrease morbidity in failed back surgery syndrome

Components

Young’s modulus (Mpa)

Poisson’s ratio

Cross-section area(mm2)

Cortical

12,000

0.3

/

Cancellous

100

0.2

/

Posterior elements

3500

0.25

/

Endplate

1000

0.4

/

Cartilage

10

0.4

/

Capsular

26

0.3

67.5

ALL

20

0.3

60

PLL

70

0.3

21

LF

50

0.3

60

ITL

50

0.3

10

ISL

28

0.3

40

SSL

28

0.3

30

  1. Note: ALL: anterior longitudinal ligament; PLL:posterior longitudinal ligament; LF:ligamantum flavum; ISL:interspinous ligament; SSL: supraspinal ligament; ITL:intertransverse ligament