Table 6.
Correlation analysis between complications and Tonnis grade
| Tonnis | Preoperative n(%) | Redislocation | Residual acetabular dysplasia |
|---|---|---|---|
| I | 136(15.7) | 0 | 4 |
| II | 259(30.0) | 8 | 9 |
| III | 273(31.6) | 5 | 10 |
| IV | 196(22.7) | 1 | 3 |
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