Hip Dislocation With Femoral Short Neck in Spondyloepiphyseal Dysplasia Treated by Open Reduction and Valgus Osteotomy: A Case Report.

Spondyloepiphyseal dysplasia congenita (SEDC) often involves hip deformity and dislocation. We present a case of an eight-year-old boy with bilateral femoral head deformity and hip dislocation treated by open reduction and femoral valgus osteotomy. Surgery was performed via an anterior approach. After removal of obstructive factors, reduction was only maintained at 30° adduction, necessitating valgus osteotomy to stabilize the hip. Postoperative fixation was achieved with hip spica casting. This case suggests that femoral valgus osteotomy may be essential to maintain reduction in SEDC-associated hip dislocation.