Usefulness of Histology for Predicting Infection at the Time of Hip Revision for the Treatment of Vancouver B2 Periprosthetic Fractures

作者：Munoz Mahamud Ernesto^*; Bori Guillem; Garcia Sebastian; Ramirez Jose; Riba Josep; Soriano Alejandro

来源：Journal of Arthroplasty, 2013, 28(8): 1247-1250.

DOI：10.1016/j.arth.2012.12.016

• periprosthetic fractures
• hip
• arthroplasty
• histology
• cultures
• infection

When facing a Vancouver B2 periprosthetic fracture, the most recommended treatment is the prosthesis replacement. Current tests do not provide enough reliability to identify whether the fracture has been produced on a septic or an aseptic loosened prosthesis. Our aim was to evaluate the usefulness of the histology for the diagnosis of infection in these cases. A total of 11 hip revision procedures were performed (mean age: 78.1 years, 8 women and 3 men). Sensitivity, specificity, positive predictive value and negative predictive value of the histology were 100%, 55.5%, 33.3% and 100% respectively. Of the six patients presenting with a positive histology, four of them had negative cultures (66.6% of false positives). Our results suggest that periprosthetic fractures are a cause of false-positive histology results for the diagnosis of infection during revision of a hip prosthesis for the treatment of Vancouver B2 periprosthetic fractures.

• 出版日期2013-9