Overview of patients in the three groups.
| Maintained Group | Restored Group | Kyphotic Group | p value | |
|---|---|---|---|---|
| Gender (female, male) | 33, 31 | 7, 10 | 12, 11 | >0.05 |
| Mean age (years) | 54 | 55 | 48 | <0.05 |
| Mean BMI (kg/cm2) | 29 | 28 | 29 | >0.05 |
| One level surgery, n (%) | 29 (45%) | 8 (47%) | 9 (39%) | >0.05 |
| Two levels surgery, n (%) | 35 (55%) | 9 (53%) | 14 (61%) | >0.05 |
| Mean follow up time (months) | 12 | 12 | 12 | >0.05 |