Objectives: This study aimed to investigate a morphometric analysis of hip joint development in patients with developmental dysplasia of the hip (DDH) following Pemberton osteotomy (PO) and Dega osteotomy (DO). Three radiographic parameters were used to evaluate acetabular morphology: The Wiberg center-edge angle (CEA), the acetabular index (AI), and the acetabular depth ratio (ADR). Methods: A comparative study including 96 patients with a mean age of 24.69 ± 8.0 months. Eighty-one (84.4%) were females, and fifteen (15.6%) were males. Of the 119 hips, 60 (50.4%) were included in the PO group, and 59 (49.6%) were in the DO group. In all hips, the AI, ADR, and CEA were recorded preoperatively, postoperatively, and at the final follow-up after 10.61 ± 3.1 years. The final radiological examination was performed at the final follow-up visit, and the radiographs were assessed according to the Severin classification. Results: Both surgical groups demonstrated significant improvement in AI from preoperative to final follow-up ( P < 0.001). Nonetheless, the DO cohort had a significantly greater degree of correction. The mean post-operative ADR was significantly higher in the DO group compared to the PO group (43.31 ± 7.8 vs. 36.05 ± 8.6, P < 0.001). However, there were no differences in mean CEA at the 1-year follow-up and at the latest readings ( P = 0.804 and P = 0.365, respectively). According to the Severin criteria, there was no statistically significant difference in outcome between the two groups ( P = 0.562). Conclusion: Despite better acetabular coverage observed in the DO group compared to the PO group, the choice of procedure should be tailored to the desired coverage pattern.
Khalid A. Bakarman (Sun,) studied this question.