The wear behavior of ion‐implanted Ti‐6Al‐4V against UHMW polyethylene

McKellop, Harry A.; Röstlund, Tord

doi:10.1002/jbm.820241102

Cited by 98 publications

(28 citation statements)

References 12 publications

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“…The problem has been recognized for a long time, but only in the last several years has it received significant attention from manufacturers, surgeons and researchers. In order to enhance the tribological properties as well as wear resistance of the metallic components in the artificial joints, various procedures have been suggested including ion implantation, plasma coating, and plasmagrafting [157][158][159]. Ion implantation has been the most common treatment method [106,158,160].…”

Section: Plasma-surface Modification Of Hard Tissue Replacementsmentioning

confidence: 99%

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Plasma-surface modification of biomaterials

Chu

Chen

Wang

et al. 2002

Materials Science and Engineering: R: Reports

1,408

652

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Plasma-surface modification (PSM) is an effective and economical surface treatment technique for many materials and of growing interests in biomedical engineering. This article reviews the various common plasma techniques and experimental methods as applied to biomedical materials research, such as plasma sputtering and etching, plasma implantation, plasma deposition, plasma polymerization, laser plasma deposition, plasma spraying, and so on. The unique advantage of plasma modification is that the surface properties and biocompatibility can be enhanced selectively while the bulk attributes of the materials remain unchanged. Existing materials can, thus, be used and needs for new classes of materials may be obviated thereby shortening the time to develop novel and better biomedical devices. Recent work has spurred a number of very interesting applications in the biomedical field. This review article concentrates upon the current status of these techniques, new applications, and achievements pertaining to biomedical materials research. Examples described include hard tissue replacements, blood contacting prostheses, ophthalmic devices, and other products. #

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Section: Plasma-surface Modification Of Hard Tissue Replacementsmentioning

confidence: 99%

“…Ion implantation has been the most common treatment method [106,158,160]. The improvement in the sliding wear resistance of the implanted materials can turn out to be either little or substantial, but that in wear resistance is more consistent [157].…”

Section: Plasma-surface Modification Of Hard Tissue Replacementsmentioning

confidence: 99%

Plasma-surface modification of biomaterials

Chu

Chen

Wang

et al. 2002

Materials Science and Engineering: R: Reports

1,408

652

View full text Add to dashboard Cite

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“…Other protocols have placed third body particles directly in the articulating surface (Davidson et al, 1994;McKellop et al, 1981;McKellop and Rostlund, 1990;McNie et al, 2000), or have indirectly simulated third body effects using abrasion-tumbling, emery abrasion, or discrete scratching of femoral heads (Affatato et al, 2005;Barbour et al, 2000;Endo et al, 2001;McKellop et al, 1999;Wang et al, 1998); many of these studies also demonstrated increased polyethylene wear resulting from third body effects.…”

Section: Introductionmentioning

confidence: 99%

Effects of episodic subluxation events on third body ingress and embedment in the THA bearing surface

Heiner

Baer

Pedersen

et al. 2008

Journal of Biomechanics

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In total joint arthroplasty, third body particle access to the articulating surfaces results in accelerated wear. Hip joint subluxation is an under-recognized means by which third body particles could potentially enter the otherwise closely conforming articular bearing space. The present study was designed to test the hypothesis that, other factors being equal, even occasional events of femoral head subluxation greatly increase the number of third body particles that enter the bearing space and become embedded in the acetabular liner, as compared to level walking cycles alone. Ten metal-onpolyethylene hip joint head-liner pairs were tested in a multi-axis joint motion simulator, with CoCrMo third body particles added to the synovial fluid analog. All component pairs were tested for two hours of level walking; half also were subjected to twenty intermittent subluxation events. The number and location of embedded particles on the acetabular liners were then determined. Subluxation dramatically increased the number of third body particles embedded in the acetabular liners, and it considerably increased the amount of scratch damage on the femoral heads. Since both third body particles and subluxation frequently occur in contemporary total hip arthroplasty, their potent synergy needs to be factored prominently into strategies to minimize wear.

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“…Moreover, the craters may accept debris of different origin that otherwise might have played a role as a third body between the two surfaces. This type of femoral head probably deserves more attention [6,7] and should be evaluated in vivo long term.…”

Section: Hip-simulator Analysismentioning

confidence: 99%

Femoral prosthetic heads and their significance in polyethylene wear

Falez¹,

Cava²,

Panegrossi³

2000

International Orthopaedics

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We used scanning electron microscopy to perform an ultrastructural analysis and two optical interferometric profilers to measure roughness on 40 prosthetic femoral heads. We expressed roughness as Ra (roughness average) value and Rsk (roughness skewness) value. Our results show that in order to obtain an ideal surface finish a low or not very high Ra value and a negative Rsk value are needed. The presence of depressions or holes (rather than scratches) with smooth (rather than sharp) edges seems to improve the lubrication and wettability properties.Résumé Nous avons utilisé la microscopie électronique à balayage pour une étude ultrastructurale et mesuré par interféromètres à lecture optique la rugosité sur 40 têtes fémorales prothétiques. Nous avons exprimé la rugosité comme Ra (la moyenne de la rugosité) et Rsk qui est une valeur des asymétries du profil par rapport à la ligne moyenne. Nos résultats démontrent que pour obtenir une surface idéale, un bas ou pas très haute valeur de Ra et une valeur négative de Rsk sont nécessaires. La présence de dépressions ou vallées (au lieu de griffes) avec un bord lisse (au lieu de tranchant) paraît améliorer la lubrification et les propriétés de mouillabilité.

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The wear behavior of ion‐implanted Ti‐6Al‐4V against UHMW polyethylene

Cited by 98 publications

References 12 publications

Plasma-surface modification of biomaterials

Plasma-surface modification of biomaterials

Effects of episodic subluxation events on third body ingress and embedment in the THA bearing surface

Femoral prosthetic heads and their significance in polyethylene wear

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