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Table 1 Descriptive statistics of the mechanical parameters of the six groups (x ± s, n = 10)

From: Biomechanical analysis of the posterior bony column of the lumbar spine

Group numbers

Elastic modulus (MPa)

Maximum strain (%)

Ultimate strength (MPa)

Maximum load (N)

1

62.58 ± 11.07

26.35 ± 3.00

10.99 ± 2.68

1039.14 ± 419.97

2

82.32 ± 16.46

30.82 ± 4.00

15.56 ± 2.76

1170.79 ± 247.59

3

117.20 ± 5.95

22.16 ± 6.09

14.71 ± 3.89

914.48 ± 242.13

4

79.95 ± 13.57

18.39 ± 3.25

11.54 ± 2.62

489.02 ± 77.88

5

47.35 ± 5.80

14.64 ± 2.48

3.47 ± 0.315

196.76 ± 14.27

6

14.86 ± 2.43

14.56 ± 2.23

0.76 ± 0.04

59.52 ± 6.00

  1. 1 superior articular process group, 2 inferior articular process group, 3 upper edge of the lamina group, 4 lower edge of the lamina group, 5 upper edge of the spinous process group, 6 lower edge of the spinous process group