Low-Dose Collagenase Chemonucleolysis Combined with Radiofrequency in the Treatment of Lumbar Disc Herniation: A 10-Year Retrospective Study
Table 2
Results of univariate analysis.
Patient’ characteristics
Classification
Cases
Excellent and good
Fair and poor
χ 2
value
Sex
Male
84
71
13
1.912
0.167
Female
42
39
3
Age (Y)
≤50
87
76
11
0.001
0.978
>50
39
34
5
BMI (kg/m2)
≤25
68
63
5
3.847
0.050#
>25
58
47
11
Course of disease (M)
≤12
72
69
3
11.364
0.001#
>12
54
41
13
Preoperative pain location
Low back and leg pain
109
94
15
0.975
0.323
Leg pain
17
16
1
Preoperative numbness
No
45
37
8
1.571
0.092
Yes
81
73
8
Preoperative muscle weakness
No
83
73
10
0.092
0.762
Yes
43
37
6
Number of responsibility disc
1
102
94
8
9.278
0.002#
≥2
24
16
8
Preoperative NRS
4–6
64
58
6
1.306
0.253
7–10
62
52
10
Preoperative JOA
≤10
70
59
11
0.173
0.677
11–15
56
51
5
Smoking history
No
68
63
5
0.544
0.461
Yes
58
51
7
Postoperative prolonged standing, sedentary, and bending over
No
81
68
13
2.512
0.113
Yes
45
52
3
Postoperative engaging in physical works
No
86
73
13
1.552
0.213
Yes
40
37
3
Postoperative strenuous activities
No
110
12
98
2.106
0.147
Yes
16
12
4
Lumbar trauma history
No
121
106
15
0.220
0.639
Yes
5
4
1
Lumbar surgery history
No
117
103
14
0.679
0.410
Yes
9
7
2
Diabetes history
No
120
105
15
0.083
0.773
Yes
6
5
1
Note: Chi-square values and values of the univariate analysis were calculated to compare the relationship between each factor and the therapeutic effect. #: , the corresponding factors were subjected to binary logistic multivariate regression analysis.