Delayed-Onset Sciatic Nerve Palsy After Periacetabular Osteotomy: A Case Report

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Case:A large surgical correction was required for severe hip dysplasia, which was associated with a delayed-onset sciatic nerve injury in an adolescent patient. A cortical bone spur on the outside of the acetabular fragment produced an indirect injury that became symptomatic during mobilization of the patient.Conclusion:The risk of direct injury to the sciatic nerve during a periacetabular osteotomy is quite low when the osteotomy is executed in extension with abduction of the hip and flexion of the knee to reduce tension on the sciatic nerve. Reported injuries have been attributed to direct damage from excessive soft-tissue retraction or during osseous ischial, supra-acetabular, and/or retroacetabular osteotomies.

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