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Sacral slope (SS) changes by pre-op classification
| Pre-op classification | Mean | SD | N |
|---|---|---|---|
| Pre-op SS | |||
| Unbalanced pelvis | 42.9 | 8.4 | 41 |
| Balanced pelvis | 58.5 | 8.3 | 32 |
| Total | 49.7 | 11.4 | 73 |
| Post-op SS | |||
| Unbalanced pelvis | 50.8 | 9.4 | 41 |
| Balanced pelvis | 55.3 | 9.4 | 32 |
| Total | 52.8 | 9.6 | 73 |
