Table 4.
Meta-analysis results of radiological outcomes
| Outcome | Groups (n) | Studies (n) | Overall effect | |||
|---|---|---|---|---|---|---|
| MIS | Conv | Effect estimate | 95% CI | p-value | ||
| Femoral offset | 150 | 150 | 3 | 0.62 | −0.77, 2.01 | 0.38 |
| Leg-length discrepancy | 325 | 300 | 5 | −0.09 | −0.32, 0.43 | 0.42 |
| Femoral positioning (0–5° valgus) | 258 | 177 | 4 | 0.57 | 0.11, 2.85 | 0.49 |
| Cup positioning (35–50° valgus) | 266 | 311 | 5 | 0.82 | 0.42, 1.59 | 0.55 |
| Cup inclination angle | 750 | 730 | 12 | 0.24 | −1.51, 2.00 | 0.79 |
| Stem alignment (varus/valgus) | 314 | 331 | 5 | 0.03 | −0.38, 0.43 | 0.90 |
MIS minimally invasive surgery, Conv conventional surgery, CI confidence interval