Table 3.
Demographics of radiologic data between the cage decrement group and control group
| Cage decrement group (n=19) | Control group (n=21) | p-value | |
|---|---|---|---|
| Pre CA | 12.24±12.91 | 8.29±12.28 | 0.327 |
| Pre SA | 2.95±6.86 | 0.48±5.91 | 0.228 |
| PreT1 slope | 23.10±8.05 | 21.63±7.13 | 0.546 |
| Pre SVA | 24.41±10.46 | 19.90±10.07 | 0.173 |
| Pre TIH | 35.22±3.74 | 35.37±3.87 | 0.900 |
| HU value | |||
| Upper vertebra, cancellous | 340.2±100.3 | 417.7±100.5 | 0.019 |
| Upper vertebra, cortical + cancellous | 407.6±100.5 | 500.2±117.3 | 0.011 |
| Lower vertebra, cancellous | 302.7±78.3 | 370.7±95.1 | 0.019 |
| Lower vertebra, cortical + cancellous | 361.2±87.3 | 440.7±117.1 | 0.021 |
| Upper vertebra sagittal | 384.4±78.4 | 444.8±75.4 | 0.017 |
| Lower vertebra sagittal | 336.4±80.5 | 397.9±105.4 | 0.047 |
| Intraoperative change | |||
| Variation of CA | 1.28±7.29 | 2.02±7.25 | 0.750 |
| Variation of SA | 1.83±5.07 | 6.93±5.87 | 0.006 |
| Variation of TIH | 1.17±2.24 | 3.93±1.08 | <0.001 |
| Intraoperativedistraction | 20.10±25.56 | 42.60±27.76 | 0.007 |
Values are presented as mean±standard deviation. CA : C2-7 cobb angle, SA : segmental angel, SVA : sagittal vertical axis, TIH : total intervertebral height, HU : Hounsfield unit