JOURNAL ARTICLE

Sonication of explanted prosthetic components in bags for diagnosis of prosthetic joint infection is associated with risk of contamination

Andrej Trampuz, Kerryl E Piper, Arlen D Hanssen, Douglas R Osmon, Franklin R Cockerill, James M Steckelberg, Robin Patel
Journal of Clinical Microbiology 2006, 44 (2): 628-31
16455930
Explanted orthopedic implants from 54 patients with aseptic failure and 24 patients with prosthetic knee or hip infection were sonicated in polyethylene bags. The sensitivities of periprosthetic tissue and sonicate fluid cultures for the diagnosis of prosthetic joint infection were 54% and 75%, whereas the specificities were 98% and 87%, respectively. Sonication in bags improved bacterial recovery from the surface of orthopedic implants; however, it lacked specificity, due to bag leakage.

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