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  • Title: Valgus Hip Osteotomy in Children With Spondyloepiphyseal Dysplasia Congenita: Midterm Results.
    Author: Bayhan IA, Abousamra O, Rogers KJ, Bober MB, Miller F, Mackenzie WG.
    Journal: J Pediatr Orthop; 2019 Jul; 39(6):282-288. PubMed ID: 31169747.
    Abstract:
    BACKGROUND: Coxa vara has been frequently reported in spondyloepiphyseal dysplasia congenita (SEDC), and proximal femoral osteotomy has been described as a useful treatment. The aim of this study was to discuss the clinical, radiographic, and gait outcomes after valgus extension osteotomy of the proximal femur. Changes of lumbar lordosis, associated with coxa vara correction, are reported as well as the outcome differences between different ages. METHODS: Records of children with SEDC, who were followed at our institution between 2004 and 2014, were reviewed; and children had hip surgery were identified. Hip pain and passive range of motion, radiographic neck shaft angle (NSA), and Hilgenreiner trochanteric (H-T) angle, sagittal spinopelvic parameters, and gait data were recorded. Preoperative and last follow-up data were compared. Outcomes were also compared between 3 age groups. RESULTS: Of the 79 children with SEDC, 26 children (12 boys and 14 girls) had hip osteotomy in 48 hips. Mean age at surgery was 9.6 years and the mean follow-up was 5 years. Preoperative hip pain was noted in 30 hips. At the last follow-up, 3 hips were painful at the extreme range of motion. Passive range of motion, NSA, and H-T improved postoperatively. Although NSA was maintained over the follow-up, H-T deterioration was noted. Spinopelvic measurements changed significantly and gait data remained stable except pelvic tilt that reduced significantly after surgery. The changes of radiographic measurements in each age group were similar to the total group of patients. CONCLUSIONS: In children with SEDC, surgical correction of coxa vara, by proximal femoral valgus osteotomy, is an effective treatment that improves hip pain and range of motion in addition to the radiographic alignment of the proximal femur and the sagittal spinopelvic alignment. Children are expected to maintain their level of function after surgery and to have good results over the midterm regardless of their age at surgery. LEVEL OF EVIDENCE: Level IV-therapeutic study.
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