Gentamicin release from commercially-available gentamicin-loaded PMMA bone cements in a prosthesis-related interfacial gap model and their antibacterial efficacy

Table 2 Clinically isolated staphylococcal strains used in this study with their gentamicin susceptibility and inoculum size (¹⁰log CFU)

Bacterial strain	Gentamicin susceptibility	Inoculum size	Refobacin Palacos R	Palacos R + G	Refobacin Bone Cement R	SmartSet GHV
CNS 7319	Sensitive	8.1 ± 0.7	-	-	-	-
CNS 5174	Resistant	9.3 ± 0.7	4.3 ± 0.4	4.4 ± 0.8	4.4 ± 0.9	4.6 ± 0.8

Also the mean number of colony forming units (¹⁰log CFU) harvested from gaps prepared in the four commercially available gentamicin-loaded bone cements are shown. Note that only the gaps were filled with fluid and not the volume above the samples. Results are means from three separate experiments (n = 3) ± SD, unless no growth.
- = no growth

ISSN: 1471-2474