Table 1.
Microbiological studies of infected total knee replacements (culture report and antibiotic sensitivity of organism grown)
| Culture result | (n) | ||
|---|---|---|---|
| Culture negative | 65 | ||
| Culture positive | 58 | ||
| Organism type | Organism | (n) | Antibiotic sensitivity |
| Gram positive | Staphylococcus aureus | 9 | Clindamycin, linezolid, vancomycin, trimethoprim/sulfamethoxaxole, rifampicin |
| Staphylococcus haemolyticus | 5 | Linezolid, teicoplanin, vancomycin, trimethoprim/sulfamethoxazole | |
| Staphylococcus epidermidis | 4 | Gentamicin, tigecycline, nitrofurantoin, rifampicin | |
| Staphylococcus hominis | 1 | Gentamicin, tigecycline, nitrofurantoin, rifampicin | |
| 19 | |||
| Gram negative | Acinetobacter baumannii | 4 | |
| Escherichia coli | 5 | Amikacin, piperacillin, meropenem | |
| Burkholderia cepacia | 11 | Ceftazidime, meropenem, minocycline, septran | |
| Stenotrophomonas maltophilia | 1 | Trimethoprim/sulfamethoxazole | |
| Klebsiella oxytoca | 1 | Ampicillin, piperacillin/tazobactam, ceftriaxone, cefepime, imipenem, amikacin, ciprofloxacin | |
| Pseudomonas aeruginosa | 7 | Imipenem, meropenem, amikacin, gentamicin, tobramycin, ciprofloxacin, moxifloxacin | |
| Enterobacter aerogenes | 3 | Ertapenem, meropenem, amikacin, gentamicin, tobramycin | |
| Providencia rettgeri | 1 | Piperacillin/tazobactam | |
| Klebsiella pneumoniae | 3 | Tigecycline, colistin, trimethoprim/sulfamethoxazole | |
| Enterobacter cloacae | 3 | Ertapenem, imipenem, meropenem amikacin | |
| 39 | |||
TKA=Total knee Arthroplasty