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Table 4 The analysis of risk factors for L4/5 and L5S1 discs

From: Risk factor analysis of disc and facet joint degeneration after intersegmental pedicle screw fixation for lumbar spondylolysis

 

L4/5

L5S1

Degeneration

No change

 

p value

Degeneration

No change

 

p value

Age (y)

25.60 ± 5.46

22.47 ± 4.42

1.479

0.145

23.00 ± 5.15

22.73 ± 4.55

0.123

0.903

BMI

22.34 ± 1.97

22.86 ± 0.91

 − 1.070

0.290

22.69 ± 0.51

22.82 ± 1.08

 − 0.257

0.799

Fixed time (m)

17.60 ± 1.97

16.98 ± 6.51

0.202

0.841

15.20 ± 4.97

17.29 ± 6.61

 − 0.684

0.497

Vertebral slip (n)

5

49

0.117

0.732

5

49

0.000*

1.000

yes

1

19

  

2

18

  

no

4

30

  

3

31

  

Facet grade pre-operation

5

49

2.305

0.310

  

1.870

0.641

Grade 4

0

13

  

4

7

  

Grade 3

5

28

  

7

14

  

Grade 2

0

8

  

4

9

  

Grade 1

0

0

  

1

8

  

Grade 0

0

0

  

0

0

  

Disc grade pre-operation

5

49

3.094

0.347

5

49

6.854

0.113

Grade 1

2

9

  

3

10

  

Grade 2

2

26

  

0

22

  

Grade 3

0

10

  

2

10

  

Grade 4

1

4

  

0

6

  

Grade 5

0

0

  

0

1

  
  1. BMI, Body Mass Index
  2. *Test was considered statistically significant at p < 0.05
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X