Table 2.
Preoperative | 6 weeks | P value | 12 months | P value | 24 months | P value | |
---|---|---|---|---|---|---|---|
Olisthesis | 15.1% ± 5.2% | 7.4% ± 5.3% | <0.001* | 6.7% ± 4.2% | <0.001* | 7.1% ± 6.0% | <0.001* |
Increase in disc height | — | 78% (−29–812) | <0.001* | 61% (−21–703) | <0.001* | 55% (−28–710) | <0.001* |
Segmental lordosis | 9.7 ± 3.8° | 16.3 ± 5.4° | <0.001* | 15.8 ± 6.4° | <0.001* | 15.7 ± 7.1° | <0.001* |
Global lordosis | 42.8 ± 15.0° | 48.5 ± 13.8° | 0.01* | 46.9 ± 12.5° | 0.13 | 46.5 ± 16.2° | 0.23 |
Bone fusion | — | — | — | 67.3% | — | 86.5% | — |
*statistically significant. Values are expressed as mean ± standard deviation or as mean (minimum and maximum).