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Table 3 Comparison of cervical parameters between single-segment group and multi-segment group

From: Cervical sagittal parameters were closely related to Neck Disability Index score after anterior cervical decompression and fusion

  

Total (n=212)

Single-segment (n=78)

Multi-segment (n=134)

P

 

Preoperative

11.17±8.56

11.69±8.51

12.42±8.55

.552

 

Postoperative

13.30±7.53

14.15±8.04

13.56±7.21

.583

CL

Follow-up

14.64±6.44

15.33±6.42

15.01±6.46

.738

 

P

0.040

.183

.557

 
 

P’

<0.001

.009

.016

 
 

Preoperative

15.64±9.12

15.22±10.25

15.88±8.42

.616

 

Postoperative

13.49±7.09

13.80±8.47

13.31±6.18

.632

SVA

Follow-up

16.23±7.72

15.99±9.06

15.79±6.82

.277

 

P

0.042

0.718

.015

 
 

P’

0.978

0.588

.999

 
 

Preoperative

20.11±6.08

20.08±5.83

20.13±6.25

.954

 

Postoperative

17.48±5.96

18.36±6.13

16.97±5.82

.103

T1S

Follow-up

20.26±6.04

20.00±5.41

20.42±6.39

.623

 

P

<0.001

.206

<0.001

 
 

P’

0.991

.999

.975

 
 

Preoperative

7.96±8.09

8.39±8.85

7.71±7.64

.556

 

Postoperative

3.70±6.87

4.21±9.02

3.41±5.25

.418

TS-CL

Follow-up

5.14±7.67

4.67±7.03

5.41±8.03

.502

 

P

0.001

.012

<0.001

 
 

P’

0.001

.013

.050

 
 

Preoperative

76.33±8.07

76.89±8.83

76.78±7.63

.923

 

Postoperative

78.67±5.72

79.13±5.38

79.20±5.95

.924

SCA

Follow-up

75.75±6.74

74.98±7.02

77.04±6.53

.033

 

P

0.004

.164

.012

 
 

P’

0.965

.358

.986

 
 

Preoperative

57.91±5.56

57.09±5.08

59.23±5.71

.006

 

Postoperative

57.16±5.40

56.16±4.63

58.57±5.67

.002

NT

Follow-up

56.87±5.18

56.11±4.33

58.11±5.55

.007

 

P

0.639

.546

.711

 
 

P’

0.252

.477

.280

 
 

Preoperative

78.59±7.25

78.00±7.59

79.73±7.03

.095

 

Postoperative

77.50±6.52

75.78±5.39

79.26±6.80

<0.001

TIA

Follow-up

78.95±6.62

78.78±5.51

79.86±7.21

.257

 

P

0.483

.106

.924

 
 

P’

0.996

.846

.998

 
 

Preoperative

20.84±6.17

20.92±5.87

20.79±6.35

.881

NDI score

Follow-up

16.52±6.90

16.29±6.36

16.66±7.20

.714

 

p

<0.001

<0.001

<0.001

 

BMI (Kg/m2)

 

23.78±2.62

23.15±2.43

24.15±2.67

.007

Sex (male/female)

 

147/65

62/16

85/49

.014

Age (years)

 

52.59±10.46

48.38±10.12

55.04±9.88

.000

Duration of symptoms (mouths)

 

9.38±16.95

9.04±18.28

9.58±16.19

.824

  1. Comparisons of preoperative, postoperative and follow-up cervical parameters, P was result of preoperative and postoperative comparison, P’ was result of preoperative and follow-up comparison