Penetration of ticarcillin/clavulanate into cartilage.
The penetration of ticarcillin and clavulanate into cartilage was investigated in 20 subjects undergoing funnel chest correction. Cartilage samples, obtained 120 or 180 min after administration of ticarcillin/clavulanate (mean dose: ticarcillin 70.0 mg/kg, clavulanate 4.7 mg/kg), were divided into core samples and outer covering portions. After 120 min, the mean ticarcillin in the outer portion was 11.0 mg/kg and that in the core sample was 0.81 mg/kg; at 180 min the mean concentration in the outer portion was 6.47 mg/kg and ticarcillin was undetectable in all but two core samples. Clavulanate was shown to decline with time in spiked cartilage preparations and the results in this investigation may underestimate penetration. Clavulanate was undetectable in most core samples. In the outer portion the mean concentration was 1.30 mg/kg at 120 min and 0.62 mg/kg at 180 min. The penetration gradient requires further elucidation and should be considered when chemotherapy for infection in cartilage is discussed.[1]References
- Penetration of ticarcillin/clavulanate into cartilage. Meier, H., Adam, D., Heilmann, H.D. J. Antimicrob. Chemother. (1989) [Pubmed]
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