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Medical Science Monitor Basic Research


Simultaneous Periprosthetic Fractures of the Femur and the Acetabulum After Bipolar Hip Arthroplasty

Challenging differential diagnosis, Management of emergency care, Educational Purpose (only if useful for a systematic review or synthesis), Rare co-existance of disease or pathology

Dionysios-Alexandros Verettas, Pelagia-Paraskevi Chloropoulou, Georgios Drosos, Theodosia Vogiatzaki, Konstantinos Tilkeridis, Konstantinos Kazakos

Greece Department of Orthopedic Surgery, Democritus University of Thrace, Alexandroupolis, Greece

Am J Case Rep 2016; 17:973-976

DOI: 10.12659/AJCR.900435

Available online: 2016-12-22

Published: 2016-12-22


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.

Keywords: Acetabulum, Femur, Internal Fixators, Periprosthetic Fractures