Table 4.
Concordance analysis
| Diagnostic test | Causative pathogen of the PJI | ||
|---|---|---|---|
| Preoperative | Intraoperative | ||
| + | + | 87 (52%) |
Staphylococcus aureus (n = 28) Streptococci (n = 17) CNS (n = 14) Enterococci (n = 7) Gram-negative bacilli (n = 10) Anaerobes (n = 6) Staphylococcus lugdunensis (n = 5) Candida albicans (n = 1) |
| Total full concordance: 87 episodes (52%) | |||
| ++ (additional pathogen) | + | 3 (2%) |
CNS (n = 2) Staphylococcus aureus (n = 2) Cutibacterium acnes (n = 1) Escherichia coli (n = 1) |
| + | ++ (additional pathogen) | 6 (4%) |
Enterococci (n = 3) CNS (n = 3) Gram-negative bacilli (n = 3) Cutibacterium acnes (n = 2) Streptococci (n = 2) Candida albicans (n = 1) |
| Total partial concordance: 9 episodes (5%) | |||
| + | − | 14 (8%) |
CNS (n = 3) Staphylococcus aureus (n = 3) Streptococci (n = 3) Cutibacterium acnes (n = 1) Enterococcus faecalis (n = 1) Gram-negative bacilli (n = 1) |
| − | + | 57 (34%) |
CNS (n = 36) Enterococci (n = 7) Anaerobes (n = 5) Staphylococcus aureus (n = 5) Gram-negative bacilli (n = 4) Streptococci (n = 3) Corynebacterium (n = 2) Candida spp. (n = 2) Staphylococcus lugdunensis (n = 1) |
| Total full discordance: 71 episodes (43%) | |||
CNS coagulase-negative staphylococci