Characterization of polyethylene wear particle: The impact of methodology

Schröder, Christian; Reinders, Joern; Zietz, Carmen; Utzschneider, Sandra; Bader, Rainer; Kretzer, Jan Philippe

doi:10.1016/j.actbio.2013.07.039

Cited by 27 publications

(31 citation statements)

References 59 publications

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“…Morphology revealed rounder particles with a lower aspect ratio for TAR. We can confirm these observations for in vitro generated wear particles with no relevant size difference, but rounder particles with a lower aspect ratio for TAR compared to TKR [58,69,70]. It is known that wear particles in the submicron size range induce the highest biological reaction [71].…”

Section: Clinical Relevancesupporting

confidence: 81%

“…After testing was completed, wear particles were isolated using acid digestion [57][58][59]. Wear particles were then filtered on alumina filters with a pore size of 0.02 lm.…”

Section: Wear Testingmentioning

confidence: 99%

“…Three randomly taken pictures were analyzed from each filter using digital image processing software (Leica QWin V3, Leica Microsystems, Wetzlar, Germany). The size and morphology of wear particles were described according to published methods [57,58].…”

Section: Wear Testingmentioning

confidence: 99%

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Force-controlled dynamic wear testing of total ankle replacements

et al. 2015

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Section: Clinical Relevancesupporting

confidence: 81%

“…After testing was completed, wear particles were isolated using acid digestion [57][58][59]. Wear particles were then filtered on alumina filters with a pore size of 0.02 lm.…”

Section: Wear Testingmentioning

confidence: 99%

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Force-controlled dynamic wear testing of total ankle replacements

et al. 2015

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“…This second one turned out to be preferable as samples did not require any particular preparation prior to observations, whereas, in case of the high-vacuum instrument, carbon coating was required to render the samples electrically conductive and, therefore, better observable. Observation conditions, like magnification, accelerating voltage (20 KeV for our tests), beam current, etc., were selected following standard recommendations and the specific requirements deriving from the actual microstructure of each sample [32][33][34]. Both microscopes were equipped with an EDXS system, used to evaluate compositions of the observed regions.…”

Section: Materials Characterization Methodsmentioning

confidence: 99%

Wear debris from brake system materials: A multi-analytical characterization approach

Verma

Alemani

Gialanella

et al. 2016

Tribology International

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“…Components were cleaned and measured gravimetrically according to ISO 14243:2:2009. At the end of each test, wear particles were analyzed using acid digestion according to previously published methods [23, 24]. Particles were analyzed on filters with a pore size of 20 nm using high resolution SEM (FEGSEM, Leo 1530, Leo, Oberkochen, Germany) at a magnification of 25,000.…”

Section: Methodsmentioning

confidence: 99%

Wear Behavior of an Unstable Knee: Stabilization via Implant Design?

Reinders

Sonntag

Kretzer

2014

BioMed Research International

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Background. Wear-related failures and instabilities are frequent failure mechanisms of total knee replacements. High-conforming designs may provide additional stability for the joint. This study analyzes the effects of a ligamentous insufficiency on the stability and the wear behavior of a high-conforming knee design. Methods. Two simulator wear tests were performed on a high-conforming total knee replacement design. In the first, a ligamentous-stable knee replacement with a sacrificed anterior cruciate ligament was simulated. In the second, a ligamentous-unstable knee with additionally insufficient posterior cruciate ligament and medial collateral ligament was simulated. Wear was determined gravimetrically and wear particles were analyzed. Implant kinematics was recorded during simulation. Results. Significantly higher wear rates (P ≤ 0.001) were observed for the unstable knee (14.58 ± 0.56 mg/106 cycles) compared to the stable knee (7.97 ± 0.87 mg/106 cycles). A higher number of wear particles with only small differences in wear particle characteristics were observed. Under unstable knee conditions, kinematics increased significantly for translations and rotations (P ≤ 0.01). This increase was mainly attributed to higher tibial posterior translation and internal rotations. Conclusion. Higher kinematics under unstable test conditions is a result of insufficient stabilization via implant design. Due to the higher kinematics, increased wear was observed in this study.

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Characterization of polyethylene wear particle: The impact of methodology

Cited by 27 publications

References 59 publications

Force-controlled dynamic wear testing of total ankle replacements

Force-controlled dynamic wear testing of total ankle replacements

Wear debris from brake system materials: A multi-analytical characterization approach

Wear Behavior of an Unstable Knee: Stabilization via Implant Design?

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