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Correlation of change in postoperative spine curvature with the number of levels operated in patients with preoperative lordotic spines (n = 67)
| Number of levels operated | Postoperative spine curvature | ||
|---|---|---|---|
| Lordotic | Straight | Kyphotic | |
| 1 | 18 (67%) | 8 (30%) | 1 (3%) |
| 2 | 16 (57%) | 12 (43% | 0 |
| 3 or 4 | 8 (67%) | 4 (33%) | 0 |
