Parameter | 3DP group (n = 20) | CS group (n = 18) | P value |
---|---|---|---|
Age, y | 11.7 ± 2.5 | 11.5 ± 2.0 | 0.628 |
Gender | |||
Male | 4 | 3 | 0.396 |
Female | 16 | 15 | |
Side | |||
Left | 9 | 9 | 0.819 |
Right | 11 | 9 | |
Follow-up time, M | 30.3 ± 3.4 | 31.5 ± 2.5 | 0.726 |
sharp angle(°) | 52.7 ± 4.8 | 48.2 ± 2.6 | 0.689 |
center-edge angle(°) | 16.5 ± 2.8 | 14.7 ± 6.8 | 0.897 |
acetabular roof angle(°) | 36.8 ± 2.6 | 37.4 ± 3.1 | 0.916 |
acetabular head index(°) | 56.8 ± 2.1 | 49.8 ± 3.2 | 0.732 |
crossover sign | |||
positive | 3 | 2 | 0.723 |
negative | 17 | 16 | |
ischial spine sign | |||
positive | 4 | 6 | 0.351 |
negative | 16 | 12 |