Table 2.
Comparison of pre- and post-operative radiographic parameters in 41 adults with spinal deformity treated with three column thoracic osteotomy, stratified based on success of achieving ideal post-operative sagittal spino-pelvic alignment
| Parameter (SD) | Pre-operative | Post-operative | Change | ||||||
|---|---|---|---|---|---|---|---|---|---|
| IDEAL | FAIL | P** | IDEAL | FAIL | P** | IDEAL | FAIL | P** | |
| Sagittal vertical axis (°) | 6 (53) | 89 (103) | 0.002 | −16 (39) | 46 (61) | 0.001 | −22 (43) | −43 (75) | 0.272 |
| Pelvic tilt (°) | 11 (10) | 31 (8) | <0.001 | 7 (9) | 26 (9) | <0.001 | −4 (5) | −5 (6) | 0.667 |
| Thoracic kyphosis (°) | −60 (27) | −67 (19) | 0.465 | −37 (12) | −37 (16) | 0.875 | 24 (23) | 30 (25) | 0.486 |
| Lumbar lordosis, LL (°) | 66 (16) | 50 (21) | 0.021 | 63 (10) | 50 (17) | 0.005 | −3 (13) | −1 (24) | 0.712 |
| Pelvic incidence, PI (°) | 49 (12) | 59 (9) | 0.018 | 49 (11) | 59 (10) | 0.011 | 0 (2) | 0 (2) | 0.696 |
| PI - LL (°) | −17 (20) | +9 (10) | 0.001 | −15 (12) | +10 (9) | <0.001 | +3 (14) | +1 (22) | 0.753 |
IDEAL and FAIL reflect patients in which ideal post-operative sagittal spino-pelvic alignment was and was not achieved, respectively. See text for definitions. SD = standard deviation
** P values based on two-tailed, paired t test. Significant P values are shown in bold