Biotribocorrosion: surface interactions in total joint replacement (TJR)

Neville, Anne; Yan, Yu

doi:10.1533/9780857093738.3.337

Cited by 8 publications

(11 citation statements)

References 99 publications

(150 reference statements)

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“…The pertinence of a tribocorrosion approach to the degradation of a wide range of biomedical implants has been recently shown by Mathew et al [21]. Specific tribocorrosion issues in total joint replacement have been discussed by Neville and Yan [23] and Mathew and Wimmer [24,25]. The former authors concluded that the tribocorrosion research still needs to be developed in order to answer specific questions such as the role of protein on MoM degradation.…”

Section: Introductionmentioning

confidence: 99%

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

Mischler

Muñoz

2013

Wear

175

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%

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

Mischler

Muñoz

2013

Wear

175

116

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“…The evolution of mechanical wear with time follows the shape of the normal force as expected from Archard's law while the chemical wear rather depends on the instantaneous combination of velocity and normal force. The integrated wear volume in the stance and swing phase is about 0.70 and 0.08 mm 3 , respectively. The later value is about ten percent of the total wear.…”

Section: Instantaneous Wear Rate During One Gait Cyclementioning

confidence: 98%

“…Repeated depassivation/repassivation cycles results in wear accelerated corrosion. Clear evidence of wear and corrosion has been detected in explants [3,18] where metal debris was manifestly generated by the combined effect of mechanics and chemistry. Tribocorrosion has been the object of several studies aimed at elucidating the interaction mechanisms of wear and corrosion and at developing predictive models for describing material degradation induced by synergistic effects of wear and corrosion [19].…”

Section: Existing Approaches For Wear Prediction Of Artificial Hip Jomentioning

confidence: 99%

“…In order to reduce the wear of artificial hip joints, MoM (mainly self mated CoCrMo alloys) and CoC (mainly self mated alumina based ceramics) combinations have been proved to be good alternatives. Wear of MoM or CoC coupling releases nanometer-sized particles and ions that are less prone to initiate particle disease than the micrometer-sized polymer wear debris [3,4]. Although MoM couplings offer a unique combination of wear and impact resistance, the continuous release of metal into the body is of longterm concern as it can cause allergies and other toxic reactions [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Although MoM couplings offer a unique combination of wear and impact resistance, the continuous release of metal into the body is of longterm concern as it can cause allergies and other toxic reactions [5][6][7]. Material release from MoM artificial hip joints occurs mainly by tribocorrosion of the sliding surfaces which are exposed to the corrosive body fluids [3,8,9]. Assessing the lifetime of MoM hip joints requires thus reliable models for predicting the extent of tribocorrosion.…”

Section: Introductionmentioning

confidence: 99%

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