| Baseline | 4 weeks | 12 weeks | 26 weeks |  | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean | 95% CI | Mean | 95% CI | Mean | 95% CI | Mean | 95% CI | P valuea | |||||
Lower bound | Upper bound | Lower bound | Upper bound | Lower bound | Upper bound | Lower bound | Upper bound | Â | |||||
VAS (0–10) |  |  |  |  |  |  |  |  |  |  |  |  |  |
 Operated limb | 28.4 (26.6) | 15.2 | 41.7 | 13.6 (13.7) | 6.7 | 20.4 | 6.2 (1.2) | 0.3 | 12.2 | 1.4 (0.4) | 0 | 3.2 | P = 0.002 |
 Non-operated limb | 5.9 (11.9) | 0 | 11.8 | 1.7 (4.0) | 0 | 3.7 | 2.1 (5.7) | 0 | 4.9 | 4.3 (10.3) | 0 | 9.4 | P = 0.21 |
Harris hip form | 63.8 (18.1) | 55.1 | 72.6 | 80.8 | 73.6 | 88.0 | 84.6 (13.2) | 78.3 | 91.0 | 88.3 (11.9) | 82.6 | 94.1 | P < 0.001 |