From: Influence of extending expansive open-door laminoplasty to C1 and C2 on cervical sagittal parameters
C1–2
C2–7
C2–7 SVA
T1 Slope
C0–2
−0.156
−0.133
0.287a
0.182
−0.152
0.168
−0.107
−0.295a
−0.17
0.376a