Table 2.
Preoperative, postoperative and final follow-up sagittal parameters
| Preoperative | Postoperative | Final follow-up | P value | Preoperative | Postoperative | Final follow-up | P value | |
|---|---|---|---|---|---|---|---|---|
| L3 and L4 double-level spondylolisthesis | L4 and L5 double-level spondylolisthesis | |||||||
| PI(°) | 57.87 ± 8.71 | 57.70 ± 8.33 | 57.81 ± 8.71 | 0.705 | 71.31 ± 12.33 | 71.38 ± 15.96 | 71.07 ± 14.80 | 0.818 |
| PT(°) | 27.35 ± 4.11 | 21.36 ± 4.56 | 21.32 ± 4.29 | < 0.001 | 28.81 ± 4.77 | 22.79 ± 6.22 | 22.80 ± 8.10 | 0.001 |
| SS(°) | 30.89 ± 9.10 | 36.74 ± 10.13 | 36.10 ± 9.68 | < 0.001 | 41.13 ± 12.08 | 48.19 ± 15.36 | 48.07 ± 15.60 | 0.001 |
| PI-LL | 17.11 ± 7.04 | 14.34 ± 5.17 | 14.09 ± 4.82 | 0.032 | 20.35 ± 8.26 | 16.90 ± 7.83 | 16.77 ± 7.96 | 0.022 |
| LL(°) | 40.11 ± 10.43 | 43.75 ± 12.58 | 43.43 ± 12.75 | 0.034 | 50.97 ± 13.18 | 53.58 ± 13.17 | 53.39 ± 13.14 | 0.024 |
| TK(°) | -16.76 ± 7.93 | -18.93 ± 6.79 | -18.88 ± 6.45 | 0.090 | -26.25 ± 9.86 | -26.47 ± 9.14 | -26.11 ± 9.01 | 0.451 |
| TPA(°) | 25.65 ± 5.47 | 16.37 ± 3.88 | 16.37 ± 3.71 | < 0.001 | 28.75 ± 7.21 | 17.92 ± 4.53 | 17.04 ± 4.53 | < 0.001 |
| TLA(°) | 13.77 ± 8.75 | 10.38 ± 6.06 | 10.32 ± 6.44 | 0.067 | 17.51 ± 8.80 | 13.06 ± 8.11 | 12.99 ± 7.93 | 0.139 |
| T1-SPi(°) | -2.93 ± 3.84 | -4.79 ± 2.74 | -4.74 ± 2.73 | 0.009 | -0.53 ± 3.24 | -4.77 ± 6.07 | -4.86 ± 6.00 | 0.031 |
| SVA(mm) | 72.12 ± 22.91 | 24.50 ± 17.15 | 24.68 ± 18.63 | < 0.001 | 85.21 ± 25.84 | 33.78 ± 16.18 | 32.19 ± 14.94 | < 0.001 |
P Preoperative vs. Final follow-up