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[Penetration of cefotaxime into human bone marrow blood]
Abstract:
Concentrations of cefotaxime (CTX) in bone marrow blood and venous blood were examined with the passage of time in 21 cases which received operations of bone and joint. Concentrations of CTX in bone marrow blood at 30 minutes of a single intravenous administration 2 g each of CTX were found to be 85.2 +/- 24.5 micrograms/ml. Concentration ratio of CTX in bone marrow blood to that in venous blood was reached the peak at 120 minutes after administration. Concentrations of CTX observed were higher than the MIC of CTX against major pathogens responsible for the postoperative infections in orthopaedic field. The CTX, therefore, is expected to have an effective antibiotic in prophylaxis.
Insights
This study measured cefotaxime (CTX) levels in bone marrow and venous blood after surgery. CTX concentrations in bone marrow exceeded the minimum inhibitory concentration for common pathogens, suggesting its effectiveness for surgical prophylaxis.
Area of Science:
- Pharmacokinetics and drug distribution in orthopedic surgery.
- Analysis of antibiotic concentrations in bone marrow and systemic circulation.
Context:
- Bone and joint surgeries carry a risk of postoperative infections.
- Understanding cefotaxime (CTX) distribution is crucial for effective prophylaxis in orthopedic patients.
Purpose:
- To determine cefotaxime concentrations in bone marrow and venous blood over time.
- To evaluate the efficacy of cefotaxime as a prophylactic antibiotic in orthopedic surgery.
Summary:
- Following a single 2g intravenous dose of cefotaxime, bone marrow concentrations reached 85.2 ± 24.5 µg/ml at 30 minutes.
- The ratio of bone marrow to venous blood cefotaxime concentration peaked at 120 minutes post-administration.
- Observed cefotaxime levels were significantly higher than the Minimum Inhibitory Concentration (MIC) for key pathogens in orthopedic infections.
Impact:
- Cefotaxime demonstrates promising pharmacokinetic properties for preventing postoperative infections in orthopedic procedures.
- Results support the use of cefotaxime for antibiotic prophylaxis in bone and joint surgeries.
- This research contributes to optimizing antibiotic strategies in orthopedic surgical care.