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Measurements of sagittal parameters grouped for lowest instrumented vertebra.
| Postoperative | L3 group | L4 group | p Value |
|---|---|---|---|
| Cobb angle | 7.68° | 7.98° | 0.682 |
| PI (Pelvic incidence) | 57.33° | 48.11° | 0.423 |
| PT* (Pelvic tilt) | 21.48° | 17.85° | 0.018* |
| SS* (Sacral slope) | 35.36° | 29.76° | 0.013* |
| LL* (Lumbar lordosis) | 52.31° | 45.47° | 0.013* |
| TK (Thoracic kyphosis) | 23.73° | 28.76° | 0.068 |
* p < 0.05 is significant.
