Research Article
Optimal Correction of Adult Spinal Deformities Requires Restoration of Distal Lumbar Lordosis
Table 1
Preoperative values of radiographic parameters between “aligned” and “not aligned” groups.
| Preoperative | Aligned | Not aligned | value |
| Pelvic incidence (°) | 52 | 61 | 0.009 | Pelvic tilt (°) | 26 | 33 | 0.001 | L1-S1 lumbar lordosis (°) | 34 | 23 | 0.004 | L1-L4 PLL (°) | 1.5 | 0.8 | 0.9 | L4-S1 DLL (°) | 33.3 | 28.3 | 0.254 | PI-LL (°) | 16 | 34 | <0.001 | T4-T12 thoracic kyphosis (°) | 37 | 25 | 0.008 | Sagittal vertical axis (mm) | 71 | 91 | >0.05 |
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