Cervical sagittal alignment after Prestige LP cervical disc replacement: radiological results and clinical impacts from a single-center experience

Table 3 Effects of Sagittal Alignment Parameters on Range of Motion After Cervical Disc Replacement

Variable	Less mobile disc (n = 30)	More mobile disc (n = 102)	P value
Postoperative
CL (°)	11.5 ± 9.8	16.6 ± 8.4	0.014^a
SA (°)	−0.5 ± 4.6	1.7 ± 4.7	0.065
SVA (mm)	17.7 ± 9.3	16.7 ± 7.2	0.939
T1s (°)	25.1 ± 6.8	28.3 ± 6.7	0.026^a
T1s-CL (°)	12.0 ± 6.1	12.2 ± 8.5	0.515
Last Follow-up
CL (°)	8.4 ± 7.8	13.6 ± 8.1	0.002^a
SA (°)	−3.2 ± 4.9	−2.2 ± 5.0	0.364
SVA (mm)	19.3 ± 7.8	15.9 ± 6.8	0.039^a
T1s (°)	23.2 ± 9.6	22.0 ± 10.8	0.680
T1s-CL (°)	14.1 ± 8.5	8.5 ± 12.8	0.018^a

CL C2–7 lordosis, SA segmental angle, SVA sagittal vertical axis, T1s T1 slope, T1s-CL T1 slope minus C2–7 lordosis, ROM range of motion
^aSignificant difference between two groups

ISSN: 1471-2474