Table 1 Data of the measurement indices of the side in a 3D image.

From: Analysis of critical 3D imaging data of surrounding cervical nerves and bone markers in spinal endoscopic surgery

Index

Segment

Side

Effect size (95%Cl)

P value

Left (n = 26)

Right (n = 26)

ANU

(mm)

C3/4

1.45 ± 0.65

1.40 ± 0.66

0.074(-0.470,0.618)

0.790

C4/5

1.40 ± 0.94

1.53 ± 0.86

-0.143(-0.687,0.402)

0.607

C5/6

1.41 ± 0.69

1.64 ± 0.89

-0.288(-0.833,0.260)

0.305

C6/7

1.24 ± 0.76

1.45 ± 0.81

-0.273(-0.818,0.275)

0.330

C7/T1

1.43 ± 0.66

1.28 ± 0.84

0.196(-0.350,0.740)

0.482

VNU

(mm)

C3/4

2.97 ± 1.56

2.89 ± 1.07

0.063(-0.481,0.606)

0.821

C4/5

3.30 ± 1.55

3.24 ± 1.18

0.042(-0.502,0.586)

0.880

C5/6

3.54 ± 1.67

3.26 ± 1.18

0.193(-0.353,0.736)

0.491

C6/7

3.42 ± 1.77

3.89 ± 1.35

-0.304(-0.849,0.244)

0.278

C7/T1

4.34 ± 2.28

5.10 ± 2.39

-0.322(-0.867,0.227)

0.252

DLB

(mm)

C3/4

9.62 ± 0.73

9.77 ± 0.94

-0.175(-0.718,0.371)

0.532

C4/5

9.45 ± 0.83

9.61 ± 0.82

-0.189(-0.733,0.357)

0.499

C5/6

9.36 ± 0.79

9.52 ± 0.81

-0.204(-0.748,0.342)

0.465

C6/7

8.90 ± 0.65

9.19 ± 0.94

-0.353(-0.899,0.197)

0.210

C7/T1

8.07 ± 0.67

8.30 ± 0.91

-0.285(-0.830,0.263)

0.309

VNS

(mm)

C3/4

8.88 ± 2.44

8.66 ± 2.08

0.096(-0.449,0.639)

0.731

C4/5

10.01 ± 2.37

10.10 ± 2.24

-0.036(-0.580,0.507)

0.896

C5/6

10.57 ± 2.76

10.59 ± 1.80

-0.007(-0.551,0.536)

0.979

C6/7

11.26 ± 2.58

11.45 ± 2.26

-0.079(-0.622,0.465)

0.777

C7/T1

11.11 ± 3.22

11.53 ± 2.61

-0.146(-0.689,0.399)

0.602

VNI

(mm)

C3/4

3.26 ± 1.51

3.00 ± 1.18

0.194(-0.352,0.738)

0.487

C4/5

3.68 ± 1.51

3.70 ± 1.41

-0.018(-0.562,0.525)

0.947

C5/6

3.74 ± 1.79

3.56 ± 1.55

0.109(-0.435,0.653)

0.695

C6/7

4.23 ± 2.18

3.96 ± 1.85

0.136(-0.408,0.680)

0.625

C7/T1

5.24 ± 2.74

5.12 ± 2.33

0.050(-0.494,0.593)

0.859

PLB

(mm)

C3/4

2.04 ± 0.86

2.29 ± 1.09

-0.259(-0.804,0.288)

0.355

C4/5

2.14 ± 0.90

2.50 ± 1.11

-0.358(-0.905,0.192)

0.202

C5/6

2.24 ± 1.01

2.46 ± 1.06

-0.204(-0.748,0.342)

0.464

C6/7

0.95 ± 0.61

1.32 ± 1.03

-0.435(-0.983,0.117)

0.125

C7/T1

0.94 ± 0.51

0.87 ± 0.42

0.147(-0.398,0.691)

0.598

  1. The index values are presented as the means ± standard deviations. ANU: the anteroposterior distance from the LPER to the anterior margin of the cervical nerve at the position of the uncinate process tip. VNU: the vertical distance from the LPER to the inferior margin of the cervical nerve at the position of the uncinate process tip. DLB: the left-right distance from the LPER to the dura mater lateral border. VNS: the vertical distance from the LPER to the cervical nerve superior margin origin. VNI: the vertical distance from the LPER to the cervical nerve inferior margin origin. PLB: the anteroposterior distance from the LPER to the vertebral pedicle isthmus lateral border.
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