Routine Diagnostic Tests for Periprosthetic Joint Infection Demonstrate a High False-Negative Rate

 
Background:
Current guidelines recommend serum erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) as the first-line testing for evaluation of suspected periprosthetic joint infection, in addition to synovial white blood-cell (WBC) count and polymorphonuclear percentage. However, the sensitivity and other diagnostic measures of these tests and the influence of organisms on these inflammatory markers remain inadequately investigated.

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