Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 1 Results for synovial pH value, synovial white blood cell (WBC) count and percentage of synovial neutrophils (PMN%) in diagnosing prosthetic joint infection (PJI)
Markers | Used cut-off values | Sensitivity (%) | Specificity (%) | PPV | NPV |
|---|---|---|---|---|---|
pH | < 7.11 | 53 | 89 | 0.6956 | 0.7971 |
WBC count | > 3000/µl | 90 | 88 | 0.7941 | 0.9464 |
PMN% | > 80% | 73 | 98 | 0.8529 | 0.8787 |