- Comparison of operation time, bone cement dosage and X-ray perspective times between the 2 groups (Mean±SD).
| Groups | Unilateral | Bilateral | P-value |
|---|---|---|---|
| Operation time (min) | 35.7±6.2a | 53.6±8.7 | 0.032 |
| Bone cement dosage | 3.5±0.9a | 5.6±1.3 | 0.041 |
| X-ray perspective times | 12.6±3.2a | 21.5±4.3 | 0.038 |
↵a Compared with bilateral group, the difference was statistically significant (p<0.05)