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Table 2 Sagittal alignment parameters, and interrater reliability for all patients

From: Increased Neck Tilt/T1 slope ratio may play an important role in patients with cervical kyphosis

Item Preoperative Pre- ICC Postoperative Post- ICC Follow-up Follow-up ICC
T1s (°) 20.73 ± 8.31 0.946 21.45 ± 7.74 0.920 23.35 ± 5.00 0.873
NT (°) 47.35 ± 5.00 0.842 45.65 ± 10.07 0.962 46.08 ± 9.61 0.964
C2-7 Cobb (°) -5.93 ± 3.00 0.796 9.67 ± 6.61 0.925 7.91 ± 8.73 0.943
C2-7 SVA (cm) 1.41 ± 1.07 0.867 1.75 ± 0.71 0.908 1.43 ± 1.28 0.782
  1. ICC, interrater reliability; Postoperative, within 1 week after surgery; Follow-up, at least 36 months after the surgery
  2. T1s T1 slope, NT neck tilt, C2-7SVA C2-7 sagittal vertical axis