Biomechanical Compatibility and Design of Ceramic Implants for Orthopedic Surgery

Christel, P.; Meunier, Alain; Dorlot, J.-M.; Crolet, J. M.; Witvoët, J.; Sedel, L.; Boutin, Pierre

doi:10.1111/j.1749-6632.1988.tb38516.x

Cited by 142 publications

(82 citation statements)

References 30 publications

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“…The use of zirconia in the biomedical applications was first introduced by Helmer and Driskell [67]. In 1988, Christel et al [68] illustrated the feasibility of zirconia in manufacturing ball heads for total hip replacement, which subsequently became its main application. Compared to the utilization of alumina in hip prostheses, zirconia bioceramic allows a significant reduction in the diameter of the femoral head, which enables a higher degree of freedom for the mobility of the joint [62].…”

Section: Ceramicsmentioning

confidence: 99%

State of the art of bioimplants manufacturing: part I

Kang

Fang

2018

Adv. Manuf.

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Bioimplants are becoming increasingly important in the modern society due to the fact of an aging population and associated issues of osteoporosis and osteoarthritis. The manufacturing of bioimplants involves an understanding of both mechanical engineering and biomedical science to produce biocompatible products with adequate lifespans. A suitable selection of materials is the prerequisite for a long-term and reliable service of the bioimplants, which relies highly on the comprehensive understanding of the material properties. In this paper, most biomaterials used for bioimplants are reviewed. The typical manufacturing processes are discussed in order to provide a perspective on the development of manufacturing fundamentals and latest technologies. The review also contains a discussion on the current measurement and evaluation constraints of the finished bioimplant products. Potential future research areas are presented at the end of this paper.

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Section: Ceramicsmentioning

confidence: 99%

State of the art of bioimplants manufacturing: part I

Kang

Fang

2018

Adv. Manuf.

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“…Esta situaci-n es indeseable ya que el material -seo vivo debe estar sometido a esfuerzos de tensi-n para mantenerse sano. Huesos que no soportan esfuerzos o cargas, o s-lo est ‡n sometidos a esfuer-M. MILOSEVSKI, R. MILOSEVSKA, D. SPASESKA, J. BOSSERT y A. R. BOCCACCINI zos de compresi-n, experimentar ‡n un cambio biol-gico que conducir ‡ a su debilitamiento y/o atrofia (5,6). La interface entre un hueso libre de tensiones y el implante se deteriorar ‡ en consecuencia, con el resultado de que la probabilidad de fractura del hueso, de la interface o del implante ser ‡ inadmisiblemene alta (6).…”

Section: Introducciînunclassified

Preparación y propiedades de materiales cerámicos bioinertes en el sistema Al2O3-TiO2-SiO2

Milosevski¹,

Milosevska²,

Spaseska³

et al. 1998

Bol. Soc. Esp. Ceram. Vidr.

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Se han obtenido polvos cer ‡micos muy finos (100-600 nm) y de alta sinterabilidad, en el sistema Al 2 O 3 -TiO 2 -SiO 2 , por el mŽto-do de co-hidr-lisis controlada a partir de precursores organo-met ‡licos. Los compactos fabricados a partir del polvo de cohidr-lisis calcinado fueron sinterizados en el rango de temperaturas 1320-1380 ¡C, obteniŽndose densidades elevadas (~ 92% D.T.). El coeficiente de expansi-n tŽrmica tŽcnico del material cer ‡mico sinterizado fue medido por dilatometr'a. El valor obtenido, 8.8 10 -6 ¡C -1 , es muy similar al de titanio met ‡lico y por lo tanto el material cer ‡mico Al 2 O 3 -TiO 2 -SiO 2 puede ser candidato para la fabricaci-n de implantes compuestos cer ‡mico/metal. Las propiedades mec ‡nicas: m-dulo de elasticidad, resitencia a la flexi-n y resistencia a la compresi-n, del material denso sinterizado, fueron determinadas, resultando muy superiores a las de TiO 2 puro. Se obtuvieron materiales cer ‡micos de alta porosidad (P~ 65 %) por el mŽtodo de evaporaci-n de per-xido de hidr-geno. Estos materiales exhibieron porosidad interconectada y sus propiedades mec ‡nicas, en particular el m-dulo de Young, resultaron similares a las de material -seo, como se requiere para el dise-o de implantes quiroergicos. Palabras clave: biocer ‡micos, aloemina-titania-silica, co-hidr-lisis, resistencia mec ‡nica, porosidad Proccessing and properties of bioinert ceramic materials in the system Al 2 O 3 -TiO 2 -SiO 2Very fine and sinterable ceramic powders (100-600 nm) in the system Al 2 O 3 -TiO 2 -SiO 2 were obtained by the method of cohydrolisis from organo-metallic precursors. Isostatically pressed powder compacts could be densified to a relative high density (~ 92 % th. density) at relative low temperatures (1320-1380¡C). The technical coefficient of thermal expansion was measured by dilatometry. The value obtained (8.8 10 -6 1/¡C) corresponds closely to that of Ti, opening the possibility to use Al 2 O 3 -TiO 2 -SiO 2 ceramics to fabricate metal/ceramic composite implants. The measured mechanical properties of dense sintered Al 2 O 3 -TiO 2 -SiO 2 material: YoungÕs modulus, flexure strength and compression strength, are higher than those of pure TiO 2 . Highly porous Al 2 O 3 -TiO 2 -SiO 2 ceramics (P~ 65%) were obtained by the method of evaporation of hydrogen peroxide. These materials exhibited interconnected porosity and their properties, particularly the YoungÕs modulus, resulted very similar to those of bone, which is an important pre-requisite for the design of quirurgical implants. Keywords: bioceramics, alumina-titania-silica, co-hydrolysis, mechanical resistance, porosity INTRODUCCIîNMateriales biocer ‡micos son aquellos materiales cer ‡micos espec'ficamente dise-ados para ser usados en la fabricaci-n de implantes quiroegicos, pr-tesis y -rganos artificiales y para cumplir una determinada funci-n fisiol-gica en el cuerpo humano (1). De acuerdo a su actividad qu'mica en el entorno del organismo humano, los materiales biocer ‡micos se clasifican en tres grupos, que incluyen : I) mater...

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“…In the mideighties, zirconia ceramics were introduced to the orthopaedic prostheses market as a promising alternative to the well established alumina femoral heads for total hip replacement (Christel et al, 1988). It was expected that zirconia, with two to three times higher flexural strength than alumina, would be an improvement on the higher fracture incidence of the alumina implants (Clarke et al, 2003;Piconi et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Wear and degradation on retrieved zirconia femoral heads

Nogiwa-Valdez

Rainforth

Stewart

2014

Journal of the Mechanical Behavior of Biomedical Materials

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Zirconia femoral heads retrieved from patients after different implantation periods (up to 13 years) were analysed using vertical scanning interferometry, atomic force microscopy and Raman microspectroscopy. A range of topographical and compositional changes on the surface of the retrievals are reported in this work. The study revealed that changes in roughness are the result of a combination of factors, i.e. scratching, surface upheaval due to transformation to the monoclinic phase and grain pull-out. Clusters of transformed monoclinic grains were observed on heads implanted for more than 3 years. The phase composition of these clusters was confirmed by Raman microspectroscopy. Increased abrasive wear and a higher monoclinic phase content concentrated on the pole of the femoral heads, confirming that the tetragonal to monoclinic phase transformation was not only induced by the tetragonal phase metastability and environmental conditions but mechanical and tribological factors, also affected the transformation kinetics. Additionally, the head implanted for 13 years showed evidence of a self-polishing mechanism leading to a considerable smoothening of the surface. These observations provide an insight into the interrelated mechanisms underlying the wear and transformation process on zirconia ceramics during implantation.

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Biomechanical Compatibility and Design of Ceramic Implants for Orthopedic Surgery

Cited by 142 publications

References 30 publications

State of the art of bioimplants manufacturing: part I

State of the art of bioimplants manufacturing: part I

Preparación y propiedades de materiales cerámicos bioinertes en el sistema Al<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub>-SiO<sub>2</sub>

Wear and degradation on retrieved zirconia femoral heads

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