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Cumulative gentamicin and clindamycin concentrations in 20 mL phosphate-buffered saline as a function of time after release from Palacos R-G (open symbols) and Copal (closed symbols) bone cement are shown. The triangles denote gentamicin release, whereas the squares indicate clindamycin release. The error bars denote the average standard deviation over three experiments performed per group. Copal increased antibiotic release compared with Palacos R-G.
