| Preop | 2 week | 6 week | 3 months | 6 months | 1 year | 2 years | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | mean ± SD | N | mean ± SD | N | mean ± SD | N | mean ± SD | N | mean ± SD | N | mean ± SD | N | mean ± SD | |
Harris hip score | ||||||||||||||
 Group ZA | 27 | 60.31 ± 10.49 | 27 | 56.23 ± 14.06 | 27 | 70.96 ± 13.03a | 27 | 77.93 ± 10.63a | 27 | 83.60 ± 7.52a | 27 | 86.34 ± 7.08a | 27 | 90.18 ± 2.11a |
 Group N/S | 27 | 60.88 ± 11.63 | 27 | 58.80 ± 10.13 | 27 | 71.08 ± 12.26a | 27 | 79.89 ± 9.42a | 27 | 81.50 ± 9.87a | 27 | 85.16 ± 7.28a | 27 | 87.67 ± 5.44a |
SF-12(PCS) | ||||||||||||||
 Group ZA | 27 | 27.53 ± 10.13 | 27 | 18.96 ± 7.48a | 27 | 28.23 ± 11.35 | 27 | 40.01 ± 13.54a | 27 | 48.09 ± 6.95a | 27 | 51.29 ± 4.45a | 27 | 53.69 ± 3.79a |
 Group N/S | 27 | 29.16 ± 11.31 | 27 | 21.37 ± 8.34a | 27 | 27.79 ± 11.99 | 27 | 42.12 ± 10.61a | 27 | 48.96 ± 7.90a | 27 | 50.53 ± 6.95a | 27 | 52.50 ± 4.16a |
SF-12(MCS) | ||||||||||||||
 Group ZA | 27 | 57.65 ± 12.57 | 27 | 60.87 ± 9.51 | 27 | 59.23 ± 10.59 | 27 | 60.3 ± 6.86 | 27 | 58.85 ± 4.95 | 27 | 58.49 ± 4.07 | 27 | 58.61 ± 5.98 |
 Group N/S | 27 | 59.17 ± 11.99 | 27 | 60.08 ± 7.29 | 27 | 63.72 ± 3.84 | 27 | 59.9 ± 4.77 | 27 | 55.97 ± 8.34 | 27 | 56.96 ± 7.20 | 27 | 59.01 ± 4.05 |
UCLA activity score | ||||||||||||||
 Group ZA | 27 | 3.96 ± 1.16 | 27 | 2.56 ± 0.80a | 27 | 3.41 ± 0.97a | 27 | 4.22 ± 0.93 | 27 | 4.63 ± 1.15 | 27 | 5.74 ± 1.06a | 27 | 7.00 ± 0.90a |
 Group N/S | 27 | 4.33 ± 1.59 | 27 | 2.56 ± 0.70a | 27 | 3.44 ± 0.97a | 27 | 4.52 ± 0.94 | 27 | 4.70 ± 0.95 | 27 | 5.52 ± 1.19a | 27 | 6.50 ± 0.74a |