Table 6 SL2 at P2 point in the cervical intervertebral space (\(\overline{x }\)±s, mm)
Level | Upper screw | Lower screw | ||
|---|---|---|---|---|
Male | Female | Male | Female | |
C3-C4 | 24.56 ± 1.69 | 23.50 ± 1.24 | 22.74 ± 1.54 | 22.18 ± 1.53 |
C4-C5 | 25.50 ± 1.41 | 24.46 ± 1.51 | 23.82 ± 1.47 | 23.11 ± 1.48 |
C5-C6 | 27.00 ± 2.17 | 26.55 ± 1.13 | 25.47 ± 1.78 | 24.41 ± 2.20 |
C6-C7 | 29.61 ± 1.56 | 28.32 ± 1.38 | 27.50 ± 1.72 | 26.59 ± 1.25 |