Skip to main content

Table 1 Patient data

From: Posterolateral fusion combined with posterior decompression shows superiority in the treatment of severe lumbar spinal stenosis without lumbar disc protrusion or prolapse: a retrospective cohort study

Parameters

PLF group (n = 77)

CF group (n = 76)

P

Male–female ratio

33 / 44

36 / 40

NS

Patient age: years (range)

63.0 ± 8.4 (49–79)

60.6 ± 7.4 (46–76)

NS

Surgery region: unilateral–bilateral ratio

  

NS

 Unilateral

43

51

 

 Bilateral

34

25

 

Surgical level

  

NS

 No. of patients who underwent one level

46

42

 

 No. of patients who underwent two level

27

33

 

 No. of patients who underwent three level

4

1

 

Stenosis degree

  

NS

 Grade A

0

0

 

 Grade B

34

30

 

 Grade C

35

37

 

 Grade D

8

9

 

Lateral recess stenosis degree (n)

  

NS

 Grade 0

0

0

 

 Grade 1

0

0

 

 Grade 2

38

35

 

 Grade 3

39

41

 

Medical illness

  

NS

 No. of patients with diabetes

9

6

 

 No. of patients with cardiovascular

16

12

 

 No. of patients with others

6

7

 

 No. of patients who smoke

12

15

NS

  1. Chi-square test (or the Fisher’s exact test when there were counts of < 5) was used for categorical variables. Unpaired sample t test was used for continuous variables (patient age)
  2. NS no significant difference