Table 1 Measured data of cervical vertebra (mean ± SD, min-max, mm)

Dry bone

Superior border

6.56 ± 2.43

2.56–11.84

21.40 ± 4.96

15.82–32.36

20.24 ± 4.06

13.34–26.54

21.64 ± 4.53

12.50-30.91

24.02 ± 6.57

14.30-40.49

31.26 ± 6.80

18.89–49.46

39.89 ± 7.55

24.41–62.01

Inferior border

8.75 ± 3.55

2.32–15.94

18.50 ± 3.37

12.98–28.22

14.24 ± 2.57

9.23–18.45

14.66 ± 3.24

5.54–21.24

16.25 ± 5.24

6.43–28.04

23.57 ± 6.85

11.30-40.86

31.73 ± 7.63

17.34–52.15

Radiograph

Superior border

6.13 ± 1.94

2.61–10.98

22.85 ± 3.57

17.58–31.68

19.22 ± 3.51

11.70-26.99

20.45 ± 3.96

12.25–28.90

23.44 ± 3.50

15.97–31.03

31.37 ± 5.13

20.94–43.57

37.16 ± 4.64

30.25–46.34

Inferior border

8.58 ± 2.40

3.90-13.51

17.56 ± 3.43

11.87–25.39

14.45 ± 2.57

11.16–20.15

14.61 ± 3.24

9.28–24.72

16.86 ± 3.96

8.96–24.63

25.17 ± 4.73

17.41–34.23

32.62 ± 4.99

23.88–44.13