The Results of Anterior Open Reduction Approach for Developmental Dysplasia of the Hip in Children Under 12 Months Old

Abstract

BACKGROUND: This study aimed to evaluate the results of the previous method of anterior open reduction done in children <12 months of age. METHOD: Patients who underwent an anterior open reduction in the typical hip dysplasia between 2012-2018 were screened retrospectively. The study included 12 hips of 12 patients. The corrected percentage of acetabular index is calculated by measurements of acetabular angles performed prior operation and at the final examination. Avascular necrosis (AVN) is classified according to the criteria of Kalamchi-MacEwen while X-ray and clinical evaluation is performed by Severin and McKay criteria. RESULTS: The average age for surgery was 9.91 months (9-11 months) while the average follow-up time was found to be 52.75 months (43-64 months). According to the radiology criteria Severin, Eveluating patients after surgery with Excellence 5 (41.7), Good 4 (33.3%), Mediation 2 (16.7%), Poor 1 (8.3%). Whereas, according to the rating based on McKay criteria, Excellent 8 (66.7%), Good 3 (25.0%) and Poor 1 (8.3%). Avascular necrosis (AVN) of the femoral head has been encountered in 1 (8.3%) of 12 hips. According to the criteria of Kalamchi-MacEwen Classification; 1 unveiled type I avascular necrosis, respectively. CONCLUDE: We have encountered according to outcomes data of this study that open reduction technique by the anterior approach for treatment of developmental dysplasia of the hip (DDH) presented more successful clinical and radiological outcomes in the 9-< 12 months old infants.