Table 4 Summary of the patient radiological analysis of the upper and lower anterior–posterior vertebral diameters

2.06 ± 0.26

2.02 ± 0.23

0.250^a

2.04 ± 0.22

2.03 ± 0.20

0.565^a

2.08 ± 0.23

2.05 ± 0.27

0.451^a

2.12 ± 0.22^#

2.13 ± 0.25^#

0.778^a

2.11 ± 0.24

2.08 ± 0.27

0.376^a

2.12 ± 0.20

2.18 ± 0.24

0.075^a

2.13 ± 0.23

2.17 ± 0.26

0.230^a

2.15 ± 0.22

2.18 ± 0.26

0.364^a

2.15 ± 0.21

2.21 ± 0.25

0.074^a

2.12 ± 0.23

2.21 ± 0.29

0.011^a