✦ LIBER ✦

Effect of mixing method and storage temperature of cement constituents on the fatigue and porosity of acrylic bone cement

✍ Scribed by Lewis, Gladius

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 171 KB
Volume: 48
Category: Article
ISSN: 0021-9304
DOI: 10.1002/(sici)1097-4636(1999)48:2<143::aid-jbm8>3.0.co;2-8

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✦ Synopsis

The influence of the storage temperature of the cement constituents prior to mixing (21 vs. 4 degrees C) and the mixing method (hand mixing vs. vacuum mixing) on the uniaxial tension-compression fatigue performance and porosity of Palacos R acrylic bone cement was studied. The fatigue results were analyzed using the three-parameter Weibull equation. The fatigue performance was expressed as an index I, which was defined as the product of the Weibull characteristic fatigue life and the square root of the Weibull slope. Statistical analyses of these results show that although the mixing method (for a given storage temperature) exerts a significant influence on the fatigue performance and areal porosity, the effect of storage temperature (for a given mixing method) on either of these parameters is not significant.

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