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Table 2 Wilcoxon rank-sum test comparing LMA between different intervertebral levels or sides of the scoliosis

From: Correlation between multifidus muscle atrophy, spinopelvic parameters, and severity of deformity in patients with adult degenerative scoliosis: the parallelogram effect of LMA on the diagonal through the apical vertebra

Variables

Goutallier grade

Concave side

Convex side

Z value (convex-concave)

P value

Upper intervertebral level

0

0

11

− 7.616

< 0.001

1

5

6

  

2

17

49

  

3

66

44

  

4

44

22

  

Lower intervertebral level

0

0

6

− 2.345

0.019

1

6

5

  

2

16

11

  

3

66

33

  

4

44

77

  

Z value (lower-upper)

 

− 0.093

− 7.049

  

P value

 

0.926

< 0.001

  
  1. LMA lumbar multifidus muscle atrophy