Variable | AVNFH (n = 135) | Control (n = 142) | P - value |
---|---|---|---|
HHS | 76.9 ± 6.65 | 79.2 ± 10.0 | 0.02*a |
Garden classification | Â | Â | 0.73*b |
 I | 30 | 35 |  |
 II | 28 | 37 |  |
 III | 53 | 43 |  |
 IV | 24 | 27 |  |
Injury operation interval | Â | Â | 0.93*b |
  < 24 h | 21 | 25 |  |
 24–48 h | 39 | 48 |  |
 48–72 h | 41 | 32 |  |
  > 72 h | 34 | 37 |  |
Weight-bearing activity time (<8 months/≥8 months) | 46/89 | 50/92 | 0.84*c |
Mechanical failure | 17.8% (24/135) | 8.9% (13/142) | 0.04c |