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Bone cement not weakened by cefuzonam powder
1Kitasato University School of Medicine, Department of Biomedical Engineering, Kanagawa, Japan.
Acta Orthopaedica Scandinavica
|June 1, 1991
Summary
Adding cefuzonam sodium to bone cement did not affect its mechanical strength. Uniformly spherical cefuzonam sodium particles likely prevented stress concentration, maintaining cement integrity for orthopedic applications.
Area of Science:
- Biomaterials Science
- Orthopedic Surgery
- Pharmacology
Background:
- Bone cement, typically polymethyl methacrylate (PMMA), is crucial in orthopedic procedures.
- Antibiotic-loaded bone cement is used to prevent surgical site infections.
- Cefuzonam sodium is a third-generation cephalosporin with broad-spectrum activity.
Purpose of the Study:
- To evaluate the mechanical properties of bone cement when mixed with cefuzonam sodium.
- To determine if cefuzonam sodium affects the tensile, shearing, and bending strength of PMMA bone cement.
Main Methods:
- Tensile, shearing, and bending tests were performed on bone cement samples.
- Cefuzonam sodium was mixed with polymethyl methacrylate (PMMA) bone cement at a specific ratio (3g to 40g).
- Mechanical testing was conducted to assess the impact of cefuzonam sodium addition.
Main Results:
- The addition of 3g of cefuzonam sodium to 40g of PMMA bone cement did not significantly alter its tensile strength.
- Shearing tests showed no diminished strength in bone cement containing cefuzonam sodium.
- Bending tests indicated that the mechanical integrity of the bone cement remained unaffected by the inclusion of cefuzonam sodium.
Conclusions:
- Cefuzonam sodium can be incorporated into PMMA bone cement without compromising its mechanical strength.
- The uniform spherical morphology of cefuzonam sodium particles is hypothesized to prevent stress concentration within the cement matrix.
- This finding supports the potential use of cefuzonam sodium-loaded bone cement in orthopedic surgery to prevent infections.