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Antibiotic Elution

Pharmacokinetics of Gentamicin Eluted from a Regenerating Bone Graft Substitute - In Vitro and Clinical Release Studies

Authors: Stravinskas et al.
Publication: Bone & Joint Research (2016)
Summary: This study compares the elution of gentamicin from CERAMENT® G in vitro with elution and efficacy in clinical applications. The results showed that the elution pattern in vitro was comparable to that seen in patient studies.
Results:
  • Elution for up to 28 days
  • Antibiotic elution is not surface dependent
  • High initial burst of gentamicin above 2000 mg/L
  • Low serum concentrations well below toxic threshold of 10mg/L

Antibiotic Containing Bone Substitute in Major Hip Surgery: A Long Term Gentamicin Elution Study

Authors: Stravinskas et al.
Publication: Bone & Joint Research (2018)
Summary: Examines the antibiotic elution of CERAMENT® G in patients over a 30-day follow-up period. Also compares the pharmacokinetics of CERAMENT® G with gentamicin containing PMMA bone cement used in primary total hip arthroplasty.
Results:
  • All of CERAMENT’S antibiotic is released
  • Antibiotic elution is not surface dependent
  • CERAMENT® has higher initial elution than PMMA
  • Low serum concentrations well below toxic threshold of 10mg/L

Explore the Studies

CERAMENT® G’s Antibiotic Elution

Graph: Sustained In-Vitro Elution
High burst of gentamicin above > 2000mg/L.
Stays well above MIC for 28 days.1

Sustained Elution

CERAMENT® G provides a high initial burst of gentamicin, with sustained elution above MIC (minimum inhibitory concentration) for 28 days.1

Graph: Detectable Gentamicin Levels in Urine
Complete elution at 30 days, helping to
reduce antibiotic resistant bacteria.2

Complete Elution

The gentamicin in CERAMENT® G is completely eluted at 30 days, helping to reduce the risk of inducing antibiotic resistant bacteria.2

Graph: Gentamicin Levels in Blood Serum
<3mg/L, well below the systemic
toxicity threshold of 10mg/L.2

Safe Elution

Blood serum elution of CERAMENT® G stays well below the systemic toxicity threshold.2

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