. 2016 Jun 24;475(2):408–415. doi: 10.1007/s11999-016-4906-0

Table 1.

Definition of periprosthetic joint infection (PJI) according to the International Consensus Group

PJI is present when one of the major criteria exists or three of five minor criteria exist
Major criteria	Two positive periprosthetic cultures with phenotypically identical organisms, OR A sinus tract communicating with the joint, OR
Minor criteria	(1) Elevated serum C-reactive protein AND erythrocyte sedimentation rate (2) Elevated synovial fluid white blood cell (WBC) count OR ++change on leukocyte esterase test strip (3) Elevated synovial fluid polymorphonuclear neutrophil percentage (4) Positive histological analysis of periprosthetic tissue (5) A single positive culture