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  • Title: Outcomes of Open Reduction in Children With Developmental Hip Dislocation: A Multicenter Experience Over a Decade.
    Author: Cummings JL, Oladeji AK, Rosenfeld S, Johnson M, Goldstein R, Georgopoulos G, Stephenson L, White NW, Hosseinzadeh P.
    Journal: J Pediatr Orthop; 2023 Jul 01; 43(6):e405-e410. PubMed ID: 37037660.
    Abstract:
    BACKGROUND: Open reduction of the hip is commonly performed in children with severe developmental dysplasia of the hip, or in cases that are refractory to nonoperative forms of treatment. The open reduction has been associated with numerous complications including avascular necrosis (AVN) of the femoral head, the need for reoperation, and residual radiographic dysplasia. This study seeks to determine the effects of preoperative severity of dysplasia, associated procedures (femoral and acetabular osteotomies), age on AVN, and the need for reoperation. METHODS: Children with developmental dysplasia of the hip and a minimum of 2 years of follow-up who underwent open reduction were identified. The following data points were recorded: sex, laterality of hip involvement, simultaneous procedures, surgical approach used, age, acetabular index, and International Hip Dysplasia Institute grade. We analyzed the effects of preoperative International Hip Dysplasia Institute, age, surgical approach (anterior/medial), bilateral reduction, and simultaneous femoral shortening or pelvic osteotomy on the outcomes of AVN and reoperation. RESULTS: One hundred eighty-five hips in 149 patients were included in this study with an average follow-up of 4 years (range: 2 to 5 y). The average age at index surgery was 23 months (range: 1 to 121 mo). Overall, 60 hips (32.4%) required secondary surgical procedures at an average age of 58.5 months. High-grade AVN was noted in 24 hips (13.0%) and was found to be associated with the severity of the hip dislocation ( P = 0.02). A higher rate of reoperation was found in children over 18 months at the time of open reduction who did not receive an acetabular osteotomy ( P = 0.012). CONCLUSION: Approximately 1/3 of patients require another operative intervention within the first 4 years after open reduction of the hip. We found the severity of hip dislocation to be associated with a higher risk of AVN development. These findings support performing an acetabular osteotomy in children over 18 months of age at the time of open reduction to decrease the likelihood of requiring future reoperation during the first 4 years after the index procedure. LEVEL OF EVIDENCE: Level III.
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