TABLE 2.
Summary of clinical outcome and radiological outcome
| POO group (n = 48) | Open group (n = 64) | P | |
|---|---|---|---|
| Clinical outcomes | |||
| MOXFQ scores | |||
| Walking | |||
| Preoperative | 50.3 ± 8.59 | 49.8 ± 10.4 | 0.24 |
| Postoperative 2 years | 13.5 ± 7.83 | 15.2 ± 8.08 | 0.23 |
| Pain | |||
| Preoperative | 51.6 ± 9.87 | 49.8 ± 10.4 | 0.16 |
| Postoperative 2 years | 15.8 ± 13.3 | 22.7 ± 17.3 | 0.06 |
| Social interaction | |||
| Preoperative | 56.9 ± 10.7 | 58.6 ± 9.22 | 0.41 |
| Postoperative 2 years | 13.3 ± 10.9 | 17.6 ± 16.8 | 0.40 |
| AOFAS score | |||
| Preoperative | 46.4 ± 10.1 | 43.7 ± 15.1 | 0.64 |
| Postoperative 1 year | 86.5 ± 10.7 | 88.2 ± 10.8 | 0.40 |
| Postoperative 2 years | 85.2 ± 13.8 | 79.5 ± 23.7 | 0.66 |
| VAS | |||
| Preoperative | 7.63 ± 1.06 | 7.29 ± 1.42 | 0.07 |
| Postoperative 2 weeks | 2.00 ± 0.98 | 5.51 ± 1.45 | 0.00 |
| Postoperative 1 year | 2.00 ± 0.99 | 2.56 ± 2.88 | 0.53 |
| Postoperative 2 years | 1.55 ± 1.11 | 2.56 ± 2.88 | 0.37 |
| Radiologic outcomes | |||
| HVA | |||
| Preoperative | 35.9 ± 10.0 | 34.3 ± 8.85 | 0.38 |
| Postoperative 1 year | 12.5 ± 2.22 | 14.1 ± 6.78 | 0.12 |
| Postoperative 2 years | 17.9 ± 9.31 | 14.8 ± 7.83 | 0.06 |
| IMA | |||
| Preoperative | 13.2 ± 3.31 | 13.7 ± 2.53 | 0.46 |
| Postoperative 1 year | 7.61 ± 1.63 | 6.89 ± 3.06 | 0.14 |
| Postoperative 2 years | 6.94 ± 1.53 | 6.97 ± 2.95 | 0.95 |