Table 1 Percent change in peak (90th percentile) tensile and compressive strains and stresses and von mises stress within a defined SCB region of 8 mm depth, 50 mm mediolateral width and 1 mm thickness, based of slice-based FE models.

From: Standing CT-based finite element models efficiently identify regions of high mechanical strain in equine metacarpal subchondral bone

Sensitivity changes

Tensile strain (%)

Compressive strain (%)

Tensile stress (%)

Compressive stress (%)

Von-mises stress (%)

Material properties

νAC  = 0.49

2.22

2.7

2.44

2.92

2.84

νAC = 0.3

15.87

17.18

23.51

17.03

17.32

GAC × 0.5

2.19

4.46

5.76

4.57

2.4

GAC × 1.5

1.8

2.98

1.6

2.61

1.88

EPSBs × 0.5

3.06

2.09

8.06

2.99

1.43

EPSBs × 1.5

1.39

0.85

2.99

1.4

0.93

EISL, Transverse × 0.5

2.88

0.86

8.8

1.18

1.3

EISL, Transverse = EISL, in−plane

0.79

2.06

2.92

2.51

1.53

PSBs position1

4.74

1.32

5.48

3.19

 
  1. 1Change in mediolateral positioning of PSBs, 1 pixel, which resulted in AC thickness change of 0.7 mm.
  2. GAC shear modulus of AC, EPSBs: Elastic modulus of proximal sesamoid bones, EISL: elastic modulus of intersesamoidian ligament.
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