Periprosthetic femur fracture (PFF) is a serious complication after total hip arthroplasty that can be treated using different internal fixation devices. However, the outcomes with curved non-locking plates with eccentric holes in this indication have not been reported previously. The objectives of this study were to determine: (1) the union rate; (2) the complication rate; (3) autonomy in a group of patients with a Vancouver type B PFF who were treated with this plate.
Use of this plate results in a high union rate with minimal mechanical complications.
Materials and methods
Forty-three patients with a mean age of 79 years±13 (41–98) who had undergone fixation of Vancouver type B PFF with this plate between 2002 and 2007 were included in the study. The time to union and Parker Mobility Score were evaluated. The revision-free survival (all causes) was calculated using Kaplan-Meier analysis. The average follow-up was 42 months±20 (16–90).
Union was obtained in all patients in a mean of 2.4 months±0.6 (2–4). One patient had varus malunion of the femur. The Parker Mobility Score decreased from 5.93±1.94 (2–9) to 4.93±1.8 (1–9) (P=0.01). Two patients required a surgical revision: one for an infection after 4.5 years and one for stem loosening. The survival of the femoral stem 5 years after fracture fixation was 83.3%±12.6%.
Use of a curved plate with eccentric holes for treating type B PFF led to a high union rate and a low number of fixation-related complications. However, PFF remains a serious complication of hip arthroplasty that is accompanied by high morbidity and mortality rates.
Level of evidence
Retrospective study, level IV.Le texte complet de cet article est disponible en PDF.
Keywords : Fracture, Femur, Prosthesis, Hip, ORIF, Plate