Table 3 Sagittal parameters before and after surgery in 4 groups
Pattern 1 | Pattern 2 | P value | |||||
|---|---|---|---|---|---|---|---|
groups | type 0–1 | type 1 | (P value) | type 0–2 | type 2 | (P value) | |
Patients No. | 34 | 21 | - | 30 | 27 | - | - |
Preoperative thoracic kyphosis | 14.4 ± 10.4 | 17.6 ± 11.8 | (0.296) | 15.3 ± 10.0 | 12.6 ± 12.3 | (0.367) | 0.475 |
Postoperative thoracic kyphosis | 22.1 ± 8.3 | 26.6 ± 9.9 | (0.076) | 23.7 ± 7.5 | 20.6 ± 10.1 | (0.199) | 0.125 |
Preoperative pelvic tilt | 24.8 ± 9.1 | 23.7 ± 11.1 | (0.680) | 21.1 ± 11.2 | 23.9 ± 10.0 | (0.334) | 0.442 |
Postoperative pelvic tilt | 16.5 ± 7.4 | 14.8 ± 7.4 | (0.389) | 15.2 ± 9.2 | 16.4 ± 8.2 | (0.591) | 0.825 |
Preoperative pelvic incidence | 44.3 ± 11.0 | 45.2 ± 9.0 | (0.750) | 43.5 ± 12.5 | 45.8 ± 12.2 | (0.491) | 0.884 |
Postoperative pelvic incidence | 44.4 ± 11.1 | 45.4 ± 9.2 | (0.731) | 43.8 ± 12.1 | 45.3 ± 14.0 | (0.665) | 0.952 |
Preoperative PI-LL | 22.4 ± 15.3 | 19.4 ± 14.3 | (0.474) | 19.4 ± 16.6 | 21.9 ± 17.6 | (0.583) | 0.840 |
Postoperative PI-LL | 5.5 ± 9.7 | 4.2 ± 8.7 | (0.593) | 5.5 ± 11.9 | 8.6 ± 11.4 | (0.336) | 0.509 |
Preoperative SVA | 63.2 ± 49.5 | 65.9 ± 40.8 | (0.835) | 63.7 ± 47.5 | 58.1 ± 37.8 | (0.627) | 0.937 |
Postoperative SVA | 28.6 ± 18.4 | 37.3 ± 27.2 | (0.162) | 31.6 ± 18.6 | 28.9 ± 19.5 | (0.600) | 0.441 |