Evaluation of Clinical and Radiographic Outcomes Following Dega Acetabuloplasty in 11 Children With Developmental Dysplasia of the Hip and 13 Children With Cerebral Palsy.

BACKGROUND Dega acetabuloplasty is commonly used to correct acetabular deficiency in children with developmental dysplasia of the hip (DDH) and cerebral palsy (CP). This retrospective study aimed to evaluate the clinical and radiographic outcomes following Dega acetabuloplasty in 11 children with DDH and 13 children with CP. MATERIAL AND METHODS We retrospectively analyzed 32 hips in 24 patients (8 males, 16 females; mean age, 61.35±41.09 months) who underwent Dega acetabuloplasty by a single surgeon between September 2015 and May 2019. The cohort included 11 patients with DDH (14 hips) and 13 patients with CP (18 hips). Radiographic outcomes were evaluated using the acetabular index in DDH hips and the migration index in CP hips at preoperative, postoperative, and final follow-up assessments. RESULTS The mean follow-up duration was 28.1 months for DDH hips and 13.8 months for CP hips. Proximal femoral osteotomy was added in selected cases. In the DDH group, the mean acetabular index decreased from 34.9°±4.8° preoperatively to 19.5°±4.3° postoperatively and 16°±6° at final follow-up (P<0.001). In the CP group, the mean migration index decreased from 85.3%±17.8% preoperatively to 8.1%±8.3% postoperatively and 17.8%±24.2% at final follow-up (P<0.001). CONCLUSIONS Early-to-midterm results suggest that Dega acetabuloplasty appears to be a safe and effective method for improving radiographic parameters in hip dislocations in patients with DDH and CP.