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

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

Variable Less mobile disc (n = 30) More mobile disc (n = 102) P value
Postoperative
 CL (°) 11.5 ± 9.8 16.6 ± 8.4 0.014a
 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 0.026a
 T1s-CL (°) 12.0 ± 6.1 12.2 ± 8.5 0.515
Last Follow-up
 CL (°) 8.4 ± 7.8 13.6 ± 8.1 0.002a
 SA (°) −3.2 ± 4.9 −2.2 ± 5.0 0.364
 SVA (mm) 19.3 ± 7.8 15.9 ± 6.8 0.039a
 T1s (°) 23.2 ± 9.6 22.0 ± 10.8 0.680
 T1s-CL (°) 14.1 ± 8.5 8.5 ± 12.8 0.018a
  1. 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
  2. aSignificant difference between two groups