title: Late sciatic nerve entrapment following pelvic plate reconstruction in total hip arthroplasty.
abstract: Delayed sciatic neuropathy due to pelvic reconstruction plate loosening following complex acetabular reconstruction in total hip arthroplasty seems not be have been previously reported. We identified a 79-year-old woman who developed progressive neurologic signs of entrapment 6 months following reconstruction of a pelvic discontinuity due to fracture nonunion caused by radiation necrosis. Magnetic resonance imaging of the lumbar spine was unrevealing and electromyography demonstrated a peripheral neurogenic process involving the sciatic nerve. Sciatic nerve exploration was done at 12 months after surgery finding a loose screw in the pelvic plate impinging the nerve. Substantial improvement in clinical symptoms resulted from removal and nerve release.
authors.affiliation: Columbia Hospital, Milwaukee, Wisconsin, USA.
authors.forename: J B
authors.initials: JB
authors.lastname: Stiehl
authors.forename: W A
authors.initials: WA
authors.lastname: Stewart
mesh_terms: D000077:Acetabulum / Q000601:surgery; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D001860:Bone Plates; D001863:Bone Screws; D005260:Female; D006801:Humans; D009408:Nerve Compression Syndromes / Q000209:etiology*; D012584:Sciatic Nerve; D013997:Time Factors