Table 1 Comparison of the Subsidence and Non-subsidence groups
Factor | Subsidence Group (N = 31) | Non-subsidence Group (N = 42) | P value |
|---|---|---|---|
Age(years) | 59.39 ± 8.49 | 57.29 ± 12.85 | 0.708 |
Sex (male: female) | 15:16 | 22:20 | 0.736 |
Operation level | |||
C3 | 0 | 1 | |
C4 | 8 | 6 | |
C5 | 11 | 18 | |
C6 | 12 | 17 | 0.660 |
Using end caps | |||
yes | 19 | 18 | 0.119 |
no | 12 | 24 | |
Preoperative CSA | 14.13 ± 9.19 | 15.37 ± 10.47 | 0.675 |
Preoperative SA | 6.94 ± 5.51 | 6.91 ± 5.37 | 0.995 |
Postoperative CSA | 17.74 ± 9.71 | 17.80 ± 9.97 | 0.980 |
Postoperative SA | 11.76 ± 5.83 | 11.18 ± 6.71 | 0.705 |
Change in CSA | 3.61 ± 8.27 | 2.42 ± 9.44 | 0.588 |
Change in SA | 4.81 ± 5.93 | 4.28 ± 6.60 | 0.727 |
RAE* | 1.24 ± 0.08 | 1.12 ± 0.08 | < 0.001 |
RPE | 1.15 ± 0.07 | 1.11 ± 0.11 | 0.112 |
Alignment of TMC* | 2.377 ± 1.9035 | 3.922 ± 2.0667 | 0.002 |
Global cervical HU value* | 315 ± 73 | 388 ± 64 | < 0.001 |