- Comparison of anterior height of vertebral body and VAS score between the 2 groups before and after operation (Mean±SD).
| Groups | Anterior height of vertebral body | VAS score | ||
|---|---|---|---|---|
| Preoperative | Postoperative | Preoperative | Postoperative | |
| Unilateral | 19.6±6.5 | 23.7±5.3 a | 8.2±2.1 | 2.2±1.6 a |
| Bilateral | 19.2±6.1 | 22.9±5.1ab | 8.5±2.5 | 2.2±1.3 ab |
The corresponding p-values of a1, a2, a3 and a4 are 0.036, 0.037, 0.002 and 0.001; The corresponding P-values of b1 and b2 are 0.108 and 0.065.
a Compared with preoperatively, the difference was statistically significant (p<0.05);
b compared with the unilateral group, the difference was not statistically significant (p>0.05)