Table 1.
Patient Demographics, Diagnosis, and Radiographic Parameters.
| Age (years) | 69.6 (32.0–85.0) |
| Gender (% female) | 66.0% |
| BMI (kg/m2) | 28.2 (16.1–53.2) |
| Underweight | 8 (3%) |
| Normal | 69 (29%) |
| Overweight | 77 (33%) |
| Obese | 81 (34%) |
| Index surgery | 177 (75%) |
| Revision surgery | 58 (25%) |
| Radiographic findings | |
| Double curve | 33 (14%) |
| Dextroscoliosis | 80 (34%) |
| Levoscoliosis | 97 (41%) |
| Sagittal imbalance | 25 (11%) |
| Cobb angle (°) | 28.4 (.0–66.8) |
| SVA (cm) | 6.3 (−4.2–21.7) |
| Cobb LL° | 37.4 (.0–82.7) |
| SS° | 29.2 (.0–66.0) |
| PT° | 23.9 (5.3–55) |
| PI° | 53.0 (23.6–103.0) |
| Levels of fusion | |
| 4–7 levels | 9 (4%) |
| 8–9 levels | 166 (71%) |
| 10–17 levels | 60 (26%) |
Abbreviations: sagittal vertical axis (SVA), Cobb lumbar lordosis (LL), sacral slope (SS), pelvic tilt (PT), and pelvic incidence (PI).