Table 3 Postoperative radiographic parameters in the two study groups
PD+ | PD− | P-value | |
|---|---|---|---|
Cases, n | 27 | 207 | – |
Post SVA (mm) | 53.5 ± 41.6 | 40.0 ± 46.2 | 0.17 |
Change in SVA (post-pre) (mm) | − 142.5 ± 82.0 | −94.6 ± 69.7 | 0.003 |
Final SVA (mm) | 89.2 ± 68.1 | 59.9 ± 52.2 | 0.062 |
Loss of SVA correction (mm) | 35.7 ± 62.1 | 19.2 ± 43.4 | 0.11 |
Post LL (°) | 41.4 ± 10.8 | 39.7 ± 11.3 | 0.64 |
Final LL (°) | 38.6 ± 12.3 | 36.4 ± 12.5 | 0.74 |
LL correction loss (°) | −0.64 ± 20.9 | −0.20 ± 21.3 | 0.93 |
Post TK (°) | 37.1 ± 12.9 | 36.5 ± 14.5 | 0.85 |
Final TK (°) | 44.3 ± 14.8 | 43.0 ± 16.5 | 0.70 |
TK correction loss (°) | 7.3 ± 7.1 | 6.5 ± 10.6 | 0.87 |
Post SS (°) | 27.1 ± 6.6 | 26.2 ± 8.6 | 0.56 |
Final SS (°) | 27.4 ± 9.6 | 24.7 ± 17.3 | 0.48 |
SS correction loss (°) | −0.3 ± 6.4 | 1.7 ± 16.8 | 0.58 |
Post PT (°) | 26.5 ± 9.4 | 23.0 ± 10.2 | 0.12 |
Final PT (°) | 26.2 ± 11.3 | 24.7 ± 19.0 | 0.59 |
−10 < post PI-LL < 10 (yes/no) | 12/15 | 108/99 | 0.83 |