Research Article

The Preoperative Microbial Detection is No Prerequisite for the Indication of Septic Revision in Cases of Suspected Periprosthetic Joint Infection

Table 3

Rates of pre- and intraoperatively fulfilled PJI criteria, following the 4 PJI definitions of the EBJIS.

Hip, n=49Overall (pre – or
Intraoperative)
preoperativeintraoperative (explanation)

Sinus tract (fistula)
or purulence
11 of 49 (22.4%)11 of 49 (22.4%)11 of 49 (22.4%)

>2000/μl leukocytes
or >70% PMN
15 of 49 (30.6%)10 of 49 (20.4%)8 of 49 (16.3%)

Krenn Morawietz type 2 or 333 of 49 (67.3%)033 of 49 (67.3%)

Microbial growth47of 49 (95.9%)25 of 49 (51%)43 of 49 (85.7%)

At least one PJI criterion49 of 49 (100%)34 of 49 (69.3%)48 of 49 (97.9%)

Knee, n=47Overall (pre – or Intraoperative) preoperativeintraoperative (explanation)

Sinus tract (fistula)
or purulence
4 of 47 (8.5%)3 of 47 (6.3%)4 of 47 (8.5%)

>2000/μl leukocytes
or >70% PMN
21 of 47 (44.6%)11 of 47 (23.4%)13 of 47 (27.6%)

Krenn Morawietz type 2 or 323 of 47 (48.9%)023 of 47 (48.9%)

Microbial growth42 of 47 (89.3%)31 of 47 (65.9%)31 of 47 (65.9%)

At least one PJI criterion46 of 47 (97.8%)32 of 47 (68.0%)40 of 47 (85.1%)

not available for each patient