Tribology and total hip joint replacement: Current concepts in mechanical simulation

Affatato, Saverio; Spinelli, Michele; Zavalloni, M.; Mazzega-Fabbro, C.; Viceconti, Marco

doi:10.1016/j.medengphy.2008.07.006

Cited by 142 publications

(94 citation statements)

References 97 publications

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“…The degradation of metal-on-metal (mainly CoCrMo) artificial joints has been the object of an increasing number of scientific in-vitro investigations. Aspects such a lubrication, clearance, wear patterns and mechanical testing methods have been throughout analysed and reviews are available [2,[15][16][17]. Rieker et al [2] studied the relationship between clearance and linear wear rate for MoM bearings and found that the wear rate decreased with decreasing clearance down to a minimum value specific for a given particular design of the MoM articulation.…”

Section: Introductionmentioning

confidence: 99%

“…Existing lubrication and wear models have been reviewed by Mattei et al [16] who pointed out the need for more elaborate approaches including both phenomena and their interaction. Affatato et al [17] critically evaluated the current practice of testing materials through in-vitro joint simulators. Those authors concluded that extrapolation of short-term simulator results to long-term in-vivo situations requires a solid understanding of the basic wear mechanisms.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Wear of CoCrMo alloys used in metal-on-metal hip joints: A tribocorrosion appraisal

Mischler

Muñoz

2013

Wear

174

116

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a b s t r a c tA good biocompatibility, excellent mechanical properties and high corrosion resistance characterize CoCrMo alloys. Therefore they are widely used for artificial joints in biomedical implants. However, the degradation of the implants during service life leads to the release into the body of toxic ions and wear particles. This continuous degradation is of concern for long-term stability of the implants. Published literature has highlighted the relevance of lubrication as well as metallurgical and contact mechanical factors on the degradation of CoCrMo implant alloys. Recent experimental investigations have proposed tribocorrosion, i.e., the interplay of mechanical wear and corrosion by the body fluids, as one of the crucial degradation mechanism of implants. Tribocorrosion is sub-discipline of tribology and corrosion that recently made significant progresses in mechanistic understanding and modelling. The present work aims at evaluating published results on the degradation of CoCrMo alloys using existing tribocorrosion concepts. Results show that wear accelerated corrosion due to mechanical removal of the passive film during sliding is a major contribution to the overall degradation. Further, a transition from low (10 À 6 N/mm 3 m) to high (10 À 4 N/mm 3 m) wear coefficients was found at a threshold electrode potential close to 0.2 V SHE These findings clearly show that electrochemical phenomena play a key role on the tribological behaviour of biomedical CoCrMo alloy implants.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wear of CoCrMo alloys used in metal-on-metal hip joints: A tribocorrosion appraisal

Mischler

Muñoz

2013

Wear

174

116

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“…Investigations into lubricin are also being made by Alexandra et al [23] to synthesize and characterize a libricin mimic which will be able to behave similar to lubricin in synovial fluids and be able to reduce friction and adhesion on articular cartilage surface. Recently, many such research concerning role of lubricin and boundary layer lubrication have been analyzed with respect to the lubrication and wear mechanisms observed in synovial joints and articular joints in general [24][25][26][27][28][29][30][31]. These researches are aimed to help better understand the technology behind one of nature's most effective lubrication mechanism.…”

Section: Synovial Joint Lubrication For Ic Enginesmentioning

confidence: 99%

Advances in Bio-inspired Tribology for Engineering Applications

Siddaiah

Menezes

2016

J Bio Tribo Corros

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Bio-inspired tribology is an interdisciplinary field of science where scientists and engineers seek to investigate and incorporate tribological properties encountered in biological beings into engineering applications. In this paper, bio-inspired tribological research that are speculated to have a huge impact on tribological applications have been reviewed. These research involve (1) investigations related to replication of lubricin found in synovial fluids of mammalian joints which have super-low friction values that can be utilized in IC engines, (2) surface replication concerning to superhydrophobic properties of gecko skin which is seen to have anti-wetting and selfcleaning properties, (3) friction-reducing shark skin through specialized nanoparticle coatings that is seen to give a different perspective on surface texturing, (4) new techniques, such as soft lithography to replicate surfaces of lotus leaf and air lubrication phenomenon inspired by emperor penguins that is being applied to propel boats, ships, and torpedoes faster by reducing skin friction underwater. Further, an investigation in self-healing materials inspired from pitcher plant that has led to the innovation of self-healing and slippery liquid-infused porous surfaces has been discussed. These research works reviewed not only provide a deep insight into the current advances in bio-inspired tribology but also helps understand the plausibility of the research applications in the future and the practicality of innovations possible.

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“…Testing differences between various laboratories using alternative hip simulators is an obvious source of variation in reported wear data, even with identical PE materials and protocols. Many machine variables remain controversial, such as simulator kinematics and their complexity, load application, utilization of a stationary head and moving liner or vice-versa, head on top or liner on top, multiple versus single station controls, lubricant composition, temperature, and circulation methods, among others [35]. Furthermore, a number of critical reviews have pointed-out the limitations of the accepted hip simulator testing standards (i.e., ISO 14242-1,3).…”

Section: Swm Ceramic-on-polyethylene Hip Simulator Studymentioning

confidence: 99%

“…Hip simulator testing is an accepted practice and a regulatory prerequisite for new or novel materials to ascertain whether proposed wear couples increase patient risks or present new worst case conditions prior to their clinical use [35,36]. Two of the hip simulator studies were conducted using Si 3 N 4 femoral heads articulating against both conventional ultra-high molecular weight polyethylene (UHMWPE) and highly cross-linked polyethylene (XLPE) liners.…”

Section: Introductionmentioning

confidence: 99%

Silicon Nitride Bearings for Total Joint Arthroplasty

et al. 2016

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Abstract:The articulation performance of silicon nitride against conventional and highly cross-linked polyethylene, as well as for self-mated silicon nitride bearings, was examined in a series of standard hip simulation studies. Wear rates for polyethylene liners against silicon nitride femoral heads were consistent with reported literature, although higher than cobalt chromium controls. Excessive protein precipitation was a confounding factor in interpretation of the wear data. Post wear-test Raman spectroscopy of the cross-linked polyethylene liners showed no oxidative degradation. Wear of self-mated silicon nitride was found to be essentially zero and indistinguishable from alumina controls using continuously orbital hip simulation for up to three million cycles. However, introduction of an alternative loading profile from three to five million cycles, including a stop-dwell-start sequence, significantly increased wear for two of six silicon nitride couples. This behavior is associated with formation and disruption of a gelatinous silicic acid tribochemical film, and is consistent with a recurrent transition from fluid-film to boundary lubrication. Overall, these results suggest that silicon nitride articulation against dissimilar counterface surfaces (e.g., highly cross-linked polyethylene) is preferred.

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Tribology and total hip joint replacement: Current concepts in mechanical simulation

Cited by 142 publications

References 97 publications

Wear of CoCrMo alloys used in metal-on-metal hip joints: A tribocorrosion appraisal

Wear of CoCrMo alloys used in metal-on-metal hip joints: A tribocorrosion appraisal

Advances in Bio-inspired Tribology for Engineering Applications

Silicon Nitride Bearings for Total Joint Arthroplasty

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