Table 3.
Postoperative change in radiographic measures of lumbar lordosis in whole cohort, low pelvic incidence and high pelvic incidence subgroups
| Delta LL versus delta T10-L2 | Delta PI-LL versus delta PT | Delta PI-LL versus delta TK | Delta PI-LL versus delta C7SVA | |
|---|---|---|---|---|
|
| ||||
| ∆LL, whole cohort | ||||
| Pearson r | ||||
| R | 0.138 | 0.04679 | −0.6334 | |
| 95% CI | −0.4209-0.1693 | −0.3653-0.2815 | 0.3179-0.8227 | |
| R2 | 0.01905 | 0.002189 | 0.4012 | |
| P | ||||
| P (two-tailed) | 0.3774 | 0.7833 | 0.0007 | |
| Slope | −0.1018±0.1141 | −0.03929±0.1418 | 0.8061±0.2053 | |
|
| ||||
| ∆LL, low PI subgroup | ||||
|
| ||||
| Pearson r | ||||
| R | 0.06492 | 0.4821 | −0.4877 | 0.3166 |
| 95% CI | −0.4933-0.3888 | −0.7746-−0.01964 | −0.05785-0.809 | −0.7253-0.2572 |
| R2 | 0.004214 | 0.2324 | 0.2378 | 0.1002 |
| P | ||||
| P (two-tailed) | 0.7857 | 0.0428 | 0.0769 | 0.2701 |
| Slope | −0.04801±0.174 | −0.4455±0.2024 | 0.728±0.3762 | −1.394±1.206 |
|
| ||||
| ∆LL, high PI subgroup | ||||
|
| ||||
| Pearson r | ||||
| R | 0.05297 | 0.1505 | −0.7686 | −0.5404 |
| 95% CI | −0.4841-0.3989 | −0.3559-0.5885 | 0.313-0.9366 | −0.8611-0.08795 |
| R2 | 0.002806 | 0.02264 | 0.5907 | 0.2921 |
| P | ||||
| P (two-tailed) | 0.8245 | 0.5643 | 0.0057 | 0.0861 |
| Slope | −0.04358±0.1936 | 0.09308±0.1579 | 0.8101±0.2248 | −2.283±1.185 |
Correlations between sagittal parameters and∆LL are given. CI - Confidence interval, C7SVA - C7 sagittal vertical axis, PI - Pelvic incidence, LL - Lumbar lordosis, PI-LL - PI-LL mismatch, PT - Pelvic tilt, T10-L2 - Sagittal Cobb angle T10-L2, TK - Thoracic kyphosis