Table 4.

Type of bacteria isolated in cultures from the infected surgical site.

Case	Allocated intervention	Bacteria isolated (R: resistant antibiotic)
1	Topical gentamicin	Enterococcus faecalis (R: Erythromycin, Tetracycline, Cotrimoxazole, Fosfomycin, Gentamicin) Peptoniphilus harei (R: Erythromycin, Clindamycin, Tetracycline) Actinomyces turicensis (R: Metronidazole)
2	Topical gentamicin	Pseudomonas aeruginosa (R: Gentamicin) Citrobacter freundii (R: Ampicillin, Amoxicillin/clavulanic, Cephalothin)
3	Topical gentamicin	Negative
4	Topical saline solution	Enterococcus faecalis (R: Erythromycin, Tetracycline, Cotrimoxazole, Fosfomycin) Citrobacter koseri (R: Ampicillin)
5	Topical saline solution	Staphylococcus aureus (R: Penicillin) Pseudomonas aeruginosa (R: Ampicillin/sulbactam, Cefotaxime, Minocycline, Cotrimoxazole)
6	Topical saline solution	Escherichia coli (R: Ampicillin, Piperacillin, Ciprofloxacin, Levofloxacin)
7	Topical saline solution	Serratia marcescens (R: Ampicillin, Amoxicillin/clavulanic, Cefuroxime, Tobramycin) Staphylococcus aureus (R: Erythromycin, Clindamycin, Streptococcus agalactiae (R: Tetracycline)
8	Topical saline solution	Proteus mirabilis (R: Nalidixic acid, Fosfomycin) Enterococcus faecium (R: Penicillin, Ampicillin, Cefuroxime, Imipenem, Ciprofloxacin, Levofloxacin, Erythromycin, Clindamycin, Cotrimoxazole, Streptomycin, Kanamycin)
9	Topical saline solution	Proteus mirabilis (R: Tigecycline) Staphylococcus aureus (R: none)
10	Topical saline solution	Staphylococcus aureus (R: Penicillin)