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Published on: February 10, 2014
Dynamic creep and mechanical characteristics of SmartSet GHV bone cement.
C Z Liu1, S M Green, N D Watkins
1Northern Ireland Bioengineering Centre, University of Ulster, Newtownabbey, BT37 0QB, Northern Ireland, UK. DES6CL@yahoo.com
Journal of Materials Science. Materials in Medicine
|March 4, 2005
Summary
SmartSet GHV bone cement exhibits different mechanical properties and creep behavior at body temperature compared to room temperature. Higher creep rates and reduced strength were observed at body temperature, highlighting its viscoelastic sensitivity.
Area of Science:
- Biomaterials Science
- Orthopedic Engineering
- Materials Science
Background:
- Bone cement is crucial for orthopedic implant fixation.
- Understanding its mechanical properties under physiological conditions is vital.
- SmartSet GHV is a commonly used bone cement.
Purpose of the Study:
- To investigate the restrained dynamic creep behavior of SmartSet GHV bone cement.
- To evaluate the mechanical properties of SmartSet GHV at room and body temperatures.
- To determine the effect of temperature on the creep and mechanical performance of bone cement.
Main Methods:
- Dynamic creep tests were performed on SmartSet GHV bone cement.
- Mechanical property testing (compressive and bending strength, bending modulus) was conducted.
- Tests were performed at both room temperature (approx. 20-25°C) and body temperature (approx. 37°C).
Main Results:
- Bone cement exhibited significantly different behavior at body temperature versus room temperature.
- A higher creep rate was observed at body temperature across all loading cycles.
- Mechanical strength decreased at body temperature, with reductions of 52% in bending modulus, 31% in compressive strength, and 23% in bending strength.
Conclusions:
- Temperature significantly impacts the creep performance and mechanical properties of SmartSet GHV bone cement.
- The material demonstrates viscoelastic sensitivity to temperature changes.
- Reduced mechanical strength at body temperature is a critical consideration for clinical applications.
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