Materials 2014, 7(6), 4367-4410; doi:10.3390/ma7064367

Bioceramics for Hip Joints: The Physical Chemistry Viewpoint

Received: 1 April 2014; in revised form: 14 May 2014 / Accepted: 26 May 2014 / Published: 11 June 2014
(This article belongs to the Special Issue Ceramics for Healthcare 2013)
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Abstract: Which intrinsic biomaterial parameter governs and, if quantitatively monitored, could reveal to us the actual lifetime potential of advanced hip joint bearing materials? An answer to this crucial question is searched for in this paper, which identifies ceramic bearings as the most innovative biomaterials in hip arthroplasty. It is shown that, if in vivo exposures comparable to human lifetimes are actually searched for, then fundamental issues should lie in the physical chemistry aspects of biomaterial surfaces. Besides searching for improvements in the phenomenological response of biomaterials to engineering protocols, hip joint components should also be designed to satisfy precise stability requirements in the stoichiometric behavior of their surfaces when exposed to extreme chemical and micromechanical conditions. New spectroscopic protocols have enabled us to visualize surface stoichiometry at the molecular scale, which is shown to be the key for assessing bioceramics with elongated lifetimes with respect to the primitive alumina biomaterials used in the past.
Keywords: hip joint; ceramics; oxygen vacancy; alumina-zirconia composites; silicon nitride; cathodoluminescence spectroscopy
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MDPI and ACS Style

Pezzotti, G. Bioceramics for Hip Joints: The Physical Chemistry Viewpoint. Materials 2014, 7, 4367-4410.

AMA Style

Pezzotti G. Bioceramics for Hip Joints: The Physical Chemistry Viewpoint. Materials. 2014; 7(6):4367-4410.

Chicago/Turabian Style

Pezzotti, Giuseppe. 2014. "Bioceramics for Hip Joints: The Physical Chemistry Viewpoint." Materials 7, no. 6: 4367-4410.

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