Table 1.

Mean baseline cervical and global radiographic parameters

Baseline cervical and global radiographic parameters
Radiographic parameters	Measurement
Sacral slope	38.5°
Pelvic tilt	17.7°
Pelvic incidence	55.9°
Pelvic incidence minus lumbar lordosis	−1.9°
L1-S1 angle	58°
T4-T12 angle	−38.4°
T1 slope	25.6°
T1 slope minus cervical lordosis	25.1°
C2-C7 angle	2.9°
C2-C7 sagittal vertical axis	25.9 mm
C2 slope	21.7°
C7-S1 sagittal vertical axis	−3.9 mm