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Table 2 Ligament material properties of the FEA model

From: Finite element mechanical analysis of ipsilateral approach and contralateral approach in unilateral bilateral endoscopic spine surgery

Ligament

Young’s modules (MPa)

Cross-sectional areas (mm2)

Poisson ratio

Stiffness (kg/m2 s2)

ALL

7.8

22.4

0.3

8.74

PLL

10.0

7.0

0.3

5.83

LF

17.0

14.1

0.3

15.38

ITL

10.0

0.6

0.3

0.19

ISL

10.0

14.1

0.3

1.85

SSL

8.0

10.5

0.3

2.39

JCL

7.5

10.5

0.3

15.75

  1. ALL: Anterior longitudinal ligament; PLL: posterior longitudinal ligament; LF: ligamentum flavum; ITL: intertransverse ligament; ISL: interspinous ligament; SSL: supraspinous ligament; and JCL: joint capsule ligament
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X