title: Simultaneous Periprosthetic Fractures of the Femur and the Acetabulum After Bipolar Hip Arthroplasty.
abstract: BACKGROUND Although periprosthetic fractures of the femur are a recognized complication of total hip arthroplasty, periprosthetic fractures of the acetabulum are rare. Simultaneous periprosthetic fractures of both the acetabulum and the femur have not been reported, to our knowledge. CASE REPORT We report a simultaneous fracture of the acetabulum and the femur in a 68-year-old female patient who had previously sustained a subcapital fracture of the femur, treated with a bipolar uncemented prosthesis. We discuss the possible mechanism of this combination of fractures. CONCLUSIONS Simultaneous periprosthetic fractures of the femur and the acetabulum can occur if, in the presence of osteoporotic bone, the metallic femoral head has migrated medially in the acetabulum while the femoral stem is not loose.
authors.affiliation: Department of Orthopedic Surgery, Democritus University of Thrace, Alexandroupolis, Greece.
authors.forename: Dionysios-Alexandros
authors.initials: DA
authors.lastname: Verettas
authors.affiliation: Department of Anesthesiology, Democritus University of Thrace, Alexandroupolis, Greece.
authors.forename: Pelagia-Paraskevi
authors.initials: PP
authors.lastname: Chloropoulou
authors.affiliation: Department of Orthopedic Surgery, Democritus University of Thrace, Alexandroupolis, Greece.
authors.forename: Georgios
authors.initials: G
authors.lastname: Drosos
authors.affiliation: Department of Anesthesiology, Democritus University of Thrace, Alexandroupolis, Greece.
authors.forename: Theodosia
authors.initials: T
authors.lastname: Vogiatzaki
authors.affiliation: Department of Orthopedic Surgery, Democritus University of Thrace, Alexandroupolis, Greece.
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Tilkeridis
authors.affiliation: Department of Orthopedic Surgery, Democritus University of Thrace, Alexandroupolis, Greece.
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Kazakos
mesh_terms: D000077:Acetabulum / Q000293:injuries*; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D005260:Female; D005264:Femoral Fractures / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery*; D006801:Humans; D057068:Periprosthetic Fractures / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery*; D012086:Reoperation; D012307:Risk Factors; D016896:Treatment Outcome