Organisms identified as causes of septic arthritis
| 1979–88 | 1989–98 | |
|---|---|---|
| n=141 (21) | n=162 (27) | |
| Number of infected prostheses are shown in parentheses. | ||
| Staphylococci | 95 (16) | 102 (15) |
| Aureus | 85 (12) | 81 (7) |
| Methicillin resistant aureus | 11 (2) | 10 (2) |
| Coagulase negative | 10 (4) | 21 (6) |
| Coagulase-methicillin resistant | 1 (0) | 7 (3) |
| Methi R | 12 (2) | 17 (5) |
| Streptococci | 22 (4) | 33 (5) |
| Pneumococci | 3 | 4 |
| Streptococcus group A | 4 | 3 |
| Streptococcus group B | 2 (1) | 10 (3) |
| Streptococcus group C | 2 (1) | 2 (1) |
| Streptococcus group D enterococci | 2 | 3 |
| Streptococcus group D bovis | 0 | 2 |
| Streptococcus group F | 1 | 0 |
| Streptococcus group G | 1 (1) | 1 |
| Non groupable | 6 | 8 |
| Sanguis | 5 (1) | 2 (1) |
| Mitis | 0 | 3 |
| Oralis | 0 | 2 |
| Constellatus | 0 | 1 |
| Typing not done | 1 | 0 |
| Gram negative bacilli | 10 (1) | 17 (4) |
| E coli | 1 | 8 (3) |
| Salmonella | 2 | 1 |
| Proteus | 1 (1) | 1 |
| Serratia | 0 | 2 |
| Pseudomonas | 1 | 1 |
| Acinobacter | 0 | 1 |
| Enterobacter | 0 | 2 |
| Haemophilus | 0 | 1 (1) |
| Pasteurella | 1 | 0 |
| Campylobacter | 1 | 0 |
| Brucella | 3 | 0 |
| Anaerobes | 1 | 2 (2) |
| Neisseria | 3 | 0 |
| N gonorrhoeae | ||
| Mycobacteria | 13 (1) | 6 (1) |
| M bovis | 1 (1) | 0 |
| M xenopi | 0 | 1 (1) |
| Fungi | 0 | 2 |
| Several organisms | 3 (1) | 0 |