From: Measurement of anatomical parameters of anterior transpedicular root screw intervertebral fusion system of cervical spine
Lower endplate
Curvature diameter
Male
Female
C3
19.74 ± 3.87
18.46 ± 3.30
C4
21.40 ± 3.26
19.44 ± 2.08
C5
22.53 ± 3.93
21.07 ± 2.36
C6
24.30 ± 3.76
22.19 ± 2.18