Journal Title
Title of Journal: J Mater Sci Mater Med
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Abbravation: Journal of Materials Science: Materials in Medicine
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Authors: Simone P Rodrigues José M Paiva Silvia De Francesco Margarida I Amaral Filipe J Oliveira Rui F Silva
Publish Date: 2012/10/07
Volume: 24, Issue: 1, Pages: 231-239
Abstract
Commercial femoral head prostheses cobalt–chromium alloy yttria partially stabilized zirconia YPSZ and alumina and new silicon nitride ceramic ones nanocrystalline diamond coated and uncoated were compared in terms of artifact level production by computed tomography CT Pelvis examination by CT allows the correct diagnosis of some pathologies eg prostate and colon cancer and the evaluation of the prosthesisbone interface in postoperative joint surgery Artifact quantification is rarely seen in literature despite having a great potential to grade biomaterials according to their imaging properties Materials’ characteristics density and effective atomic number size and geometry of the prostheses can cause more or less artifact A quantification procedure based on the calculation of four statistical parameters for the Hounsfield pixel values mean standard deviation mean squared error and worst case error is presented CT sequential and helical scanning modes were performed Results prove the artifact reproducibility and indicate that the cobalt–chromium and YPSZ are the most artifactinducing materials while alumina and silicon nitride diamond coated and uncoated ceramic ones present a low level of artifact Considering the excellent biocompatibility and biotribological behaviour reported in earlier works combined with the high medical imaging quality here assessed diamond coated silicon nitride ceramics are arising as new materials for joint replacementThis work was conducted under the framework of FCT project HipCerDiam—PTDC/EMEPME/112910/2009 M Amaral acknowledges FCT for the Grant SFRH/BPD/26787/2006 The authors would like to acknowledge the Director Dr Vasco Gama and all the team of the Cardiology Service and Hemodynamic Laboratory of Vila Nova de Gaia/Espinho Hospital Centre—Portugal for the CT equipment availability The authors also aknowledge the financing programme PestC/CTM/LA0011/2011
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- Injectability of brushite-forming Mg-substituted and Sr-substituted α-TCP bone cements
- Freeze extrusion fabrication of 13–93 bioactive glass scaffolds for bone repair
- Use of tissue transglutaminase and fibronectin to influence osteoblast responses to tricalcium phosphate scaffolds
- The impact of the RGD peptide on osteoblast adhesion and spreading on zinc-substituted hydroxyapatite surface
- Nano-hydroxyapatite/poly( l -lactic acid) composite synthesized by a modified in situ precipitation: preparation and properties
- Poly ( d , l -lactide)/nano-hydroxyapatite composite scaffolds for bone tissue engineering and biocompatibility evaluation
- Bone-like apatite coating on Mg-PSZ/Al 2 O 3 composites using bioactive systems
- Using chondroitin sulfate to improve the viability and biosynthesis of chondrocytes encapsulated in interpenetrating network (IPN) hydrogels of agarose and poly(ethylene glycol) diacrylate
- The preparation, cytocompatibility, and in vitro biodegradation study of pure β-TCP on magnesium
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- Safety and efficacy of a novel abluminal groove-filled biodegradable polymer sirolimus-eluting stent
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