Does T1 slope minus cervical lordosis mismatch affect surgical outcomes of cervical laminoplasty in the absence of preoperative severe kyphosis?

Table 2 Preop and Postop radiographic parameters and clinical outcomes

	Preop	Postop	P value	Correlation (Pearson’s r)
C2-C7 angle (degrees)	15.9 ± 11.6	14.8 ± 13.4	0.29	0.69
T1 slope angle (degrees)	24.8 ± 8.27	26.2 ± 9.26	0.02	0.78
T1S-C27 angle (degrees)	8.93 ± 9.45	11.4 ± 12.2	0.02	0.59
C2-C7SVA (mm)	25.0 ± 13.9	28.1 ± 17.0	0.02	0.69
NRS (Neck pain)	3.29 ± 3.08	2.69 ± 2.61	0.03
PCS	24.9 ± 17.9	33.8 ± 17.9	< 0.01
NDI	37.5 ± 17.7	26.6 ± 15.8	< 0.01
EQ5D	0.57 ± 0.19	0.68 ± 0.18	< 0.01
JOA score	10.8 ± 2.25	13.9 ± 2.21	< 0.01

The bold value indicates considered significant (P < 0.05). SVA sagittal vertical axis, NRS numeric rating scale, PCS physical component summary, NDI neck disability index, EQ5D Euro QOL 5 dimensions, JOA Japanese Orthopedic Association

ISSN: 1471-2474