Table 3 Comparison of the radiographic parameters of the two groups
Adding-on group(n = 8) | No adding-on group(n = 38) | P value | |
|---|---|---|---|
TL/L curve(°) | |||
Preoperative | 48.2 ± 8.5 | 47.6 ± 6.6 | 0.876 |
Postoperative | 11.1 ± 5.5 | 6.4 ± 4.3 | 0.023* |
Last follow-up | 14.4 ± 8.9 | 8.1 ± 5.5 | 0.146 |
T curve(°) | |||
Preoperative | 30.8 ± 5.6 | 25.6 ± 8.3 | 0.065 |
Postoperative | 14.0 ± 6.9 | 9.8 ± 5.6 | 0.053 |
Last follow-up | 18.0 ± 10.1 | 11.0 ± 5.8 | 0.057 |
LIV tilt(°) | |||
Preoperative | 26.4 ± 6.2 | 25.0 ± 5.8 | 0.639 |
Postoperative | 5.6 ± 3.0 | 5.0 ± 3.7 | 0.450 |
Last follow-up | 6.3 ± 3.2 | 5.3 ± 3.7 | 0.246 |
LIV disc angle(°) | |||
Preoperative | 6.6 ± 7.4 | 8.3 ± 4.0 | 0.102 |
Postoperative | 3.4 ± 2.4 | 2.4 ± 1.4 | 0.384 |
Last follow-up | 7.3 ± 4.2 | 2.8 ± 1.5 | 0.007* |
LIV translation(mm) | |||
Preoperative | 29.1 ± 11.9 | 21.0 ± 7.0 | 0.053 |
Postoperative | 12.1 ± 5.1 | 8.2 ± 5.3 | 0.036* |
Last follow-up | 13.1 ± 6.9 | 7.2 ± 3.2 | 0.019* |
LIV + 1 translation(mm) | |||
Preoperative | 11.9 ± 9.4 | 7.8 ± 5.4 | 0.234 |
Postoperative | 7.3 ± 4.0 | 3.3 ± 3.5 | 0.009* |
Last follow-up | 9.0 ± 5.5 | 2.8 ± 2.6 | 0.001* |
Coronal imbalance(mm) | |||
Preoperative | 19.4 ± 14.7 | 23.8 ± 11.9 | 0.258 |
Postoperative | 10.0 ± 11.2 | 19.7 ± 13.8 | 0.042* |
Last follow-up | 10.6 ± 9.7 | 12.5 ± 8.0 | 0.433 |