Table 2.
Comparison of surgical and nonoperated sides
| Procedure | Surgically treated side (95% CI) | Nonoperated side (95% CI) | p value* |
|---|---|---|---|
| Salter osteotomy (14 patients) | |||
| VCA angle (degrees) | 44 (37.14, 50.98) | 42 (36.31, 47.40) | 0.551 |
| AAHI (%) | 86 (81.49, 90.84) | 88 (83.19, 92.60) | 0.379 |
| WAI (degrees) | 12 (9.26, 15.07) | 13 (10.83, 16.14) | 0.209 |
| Pemberton acetabuloplasty (28 patients) | |||
| VCA angle (degrees) | 43 (37.65, 48.11) | 43 (38.61, 47.62) | 0.955 |
| AAHI (%) | 86 (82.44, 88.82) | 88 (85.18, 90.77) | 0.096 |
| WAI (degrees) | 6 (4.84, 7.16) | 12 (10.07, 13.39) | < 0.001 |
* Wilcoxon signed-rank test; VCA angle = vertical-center-anterior margin angle; AAHI = anterior acetabular head index; WAI = weightbearing zone acetabular index.