Impact of cervical and global spine sagittal alignment on cervical curvature changes after posterior cervical laminoplasty

Table 1 Spino-pelvic sagittal parameters and clinical data

Characteristics	Pre-surgery parameters	Post-surgery parameters	P value
PI (°)	46.29 ± 9.86	46.18 ± 9.67	0.761
SS (°)	25.50 (12.00, 34.45)	26.00 (11.73, 34.90)	0.138
PT (°)	20.70 (12.40, 29.38)	20.80 (12.55, 28.70)	0.346
LL (°)	34.26 ± 12.24	34.84 ± 11.64	0.246
TK (°)	35.67 ± 11.68	35.14 ± 10.86	0.238
T1S (°)	26.52 ± 6.11	25.79 ± 5.76	0.173
CL (°)	17.14 ± 10.18	14.13 ± 14.86	0.088
C7-SVA (cm)	3.65 ± 3.60	3.78 ± 3.53	0.551
C2–7 SVA (cm)	1.98 ± 1.17	2.14 ± 1.16	0.466
JOA score	11.69 ± 2.51	13.95 ± 2.34	< 0.001
NDI (%)	15.56 (9.44, 31.00)	15.00 (4.89, 24.89)	0.081

PT pelvic tilt, SS sacral slope, PI pelvic incidence, TK thoracic kyphosis, LL lumbar lordosis, CL cervical lordosis, T1S T1 slope, SVA sagittal vertical axis, JOA Japanese Orthopaedic Association, NDI neck disability index. Bold value indicates p value ≤ 0.05 and is statistically significant

ISSN: 1749-799X