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Table 1 Effects on cervical sagittal alignment parameters following adjacent two-level ACDF

From: Analysis of a radiographic parameter K-line tilt following adjacent two-level anterior cervical discectomy and fusion: a retrospective study

ItemPreoperativePostoperativeFollow-upp valuep* value
T1s (°)27.78 ± 8.7028.24 ± 6.6727.61 ± 9.710.5730.841
C2–7 lordosis (°)17.80 ± 9.7218.62 ± 6.8417.42 ± 8.420.4300.723
SA (°)3.62 ± 9.149.68 ± 4.287.73 ± 4.900.0000.000
C2–7 SVA (cm)2.40 ± 1.862.65 ± 1.122.43 ± 1.640.2360.918
K-line tilt (°)7.50 ± 6.489.95 ± 5.099.49 ± 8.950.0000.001
  1. p value comparison between preoperative and postoperative, p* value comparison between preoperative and follow-up, T1s T1 slope, SA segmental angle, C2-7SVA sagittal vertical axis