Table 4.
Comparison of postoperative prosthesis placement angle between DAA group and PLA group
| Group | DAA group | PLA group | t/x2 | P-Value |
|---|---|---|---|---|
| Acetabular abduction angle (°) | 44.96 ± 4.75 | 43.85 ± 4.92 | 0.737 | 0.465 |
| Acetabular anteversion angle (°) | 18.97 ± 4.16 | 16.57 ± 5.55 | 1.575 | 0.123 |
| the safe area the safe accuracy (%) | 85.00% | 81.82% | – | 1.000 |
| The difference of rotation center | ||||
| Horizontal differences (mm) | 4.34 ± 3.11 | 6.99 ± 4.87 | −2.081 | 0.044* |
| Vertical differences (mm) | 4.67 ± 3.96 | 4.15 ± 3.53 | 0.444 | 0.659 |
| Femoral eccentric distance difference (mm) | 5.37 ± 3.71 | 6.80 ± 5.08 | −1.036 | 0.307 |
*Significant difference