Table 1 Definition of Periprosthetic Join Infection
PJI is diagnosed when patients meet one major criterion or 3/5 minor criteria | |
|---|---|
Major Criteria | Two positive periprosthetic cultures with phenotypically identical organisms, OR A sinus tract communicating with the joint |
Minor Criteria | 1) Elevated serum CRP and ESR values; 2) Elevated synovial fluid white blood cell (WBC) counts OR + + changes on leukocyte esterase test strip; 3) An elevated polymorphonuclear neutrophil percentage (PMN%) in the synovial fluid; 4) Positive histological analyses of the periprosthetic tissue; 5) A single positive culture |