Table 2.
Mean VAS score based on different variables
| Variable | VAS before | VAS within the first months after surgeries | VAS 6 months after surgeries | P-value | |
|---|---|---|---|---|---|
| Sex | Male | 8.26±0.97 | 4.12±1.20 | 4.13±1.31 | <0.001* |
| Female | 8.46±0.96 | 4.16±1.12 | 4.31±1.29 | <0.001* | |
| P-value | 0.24 | 0.80 | 0.42 | ||
| Age | Less than 60 | 8.06±0.17 | 4.14±1.17 | 4.23±1.41 | <0.001* |
| More than 60 | 8.24±0.46 | 4.46±1.30 | 4.57±1.20 | <0.001* | |
| P-value | 0.24 | 0.03 | 0.02 | ||
| Type | end-plate | 8.36±0.96 | 3.93±1.24 | 4.05±1.28 | <0.001* |
| burst or retropulsed | 8.35±0.98 | 4.29±1.09 | 4.32±1.31 | <0.001* | |
| P-value | 0.96*** | 0.83 | 0.42 | ||
| Time passed from fracture | Less than 6 weeks | 8.34±0.90 | 3.34±1.12 | 4.25±1.17 | <0.001* |
| More than 6 weeks | 8.25±0.88 | 4.40±1.15 | 4.71±1.21 | <0.001* | |
| P-value | 0.82*** | <0.001*** | <0.001*** | ||
| Kyphosis | Less than 20 degrees | 8.41±0.98 | 3.54±0.91 | 3.61±1.01 | <0.001* |
| More than 20 degrees | 8.25±0.95 | 5.09±0.85 | 5.16±1.0 | <0.001* | |
| P-value | 0.34*** | <0.001*** | <0.001*** | ||
| Cement volume | Less than 5 ml | 8.23±0.91 | 4.36±1.15 | 4.55±1.27 | <0.001* |
| More than 5 ml | 8.46±1.01 | 3.94±1.14 | 3.91±1.26 | <0.001* | |
| P-value | 0.15*** | 0.03*** | 0.004*** | ||
| Location | Lumbar | 8.68±0.99 | 4.01±1.36 | 4.43±1.26 | <0.001** |
| Thoracic | 8.24±0.93 | 4.75±0.95 | 4.68±1.42 | <0.001** | |
| Thoracolumbar | 8.26±0.97 | 3.77±1.02 | 3.77±1.09 | <0.001** | |
| P-value | 0.09*** | <0.001*** | 0.001*** |
*
Repeated measure ANOVA;
**
One way ANOVA;
***
independent T-test.