Evaluating the Local Release, Systemic Transport, and Biological Significance of Cobalt Chromium Debris in Total Knee Replacement

2020 ◽  
Author(s):  
Christina M. Arnholt
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Biological Significance ◽  
Cobalt Chromium ◽  
Total Knee ◽  
Local Release ◽  
Systemic Transport

scholarly journals Analysis of Friction in Total Knee Prosthesis during a Standard Gait Cycle

Lubricants ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 36
Author(s):  
Matúš Ranuša ◽  
Markus A. Wimmer ◽  
Spencer Fullam ◽  
Martin Vrbka ◽  
Ivan Křupka
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Computational Models ◽  
Gait Cycle ◽  
Knee Prosthesis ◽  
Shear Stresses ◽  
Cobalt Chromium ◽  
Joint Friction ◽  
The Coefficient Of Friction ◽  
Total Knee

Total knee arthroplasty is on the rise worldwide. Despite its success, revision surgeries are also increasing. According to the American Joint Replacement Registry 2020, 3.3% of revision surgeries are due to wear, and 24.2% are due to mechanical loosening. The combination of shear stresses and wear particles occurring at the bone/implant interface can lead to local osteolysis. Although the shear stresses are partially driven by joint friction, relatively little is known about the evolution of the coefficient of friction (CoF) during a gait cycle in total knee replacement. Here we describe the CoF during a gait cycle and investigate its association with kinematics (slide–roll-ratio), applied load, and relative velocity. The artificial knee was simulated by cobalt–chromium condyle on a flat ultra-high-molecular-weight polyethylene (UHMWPE) tibial plateau, lubricated by either water or proteinaceous solution. We found that the CoF is not a constant but fluctuates between the values close to 0 and 0.15. Cross-correlation suggested that this is primarily an effect of the slide–roll ratio and the contact pressure. There was no difference in the CoF between water and proteinaceous solution. Knowledge about the CoF behavior during a gait cycle will help to increase the accuracy of future computational models of total knee replacement.

Backside wear in total knee replacement: A new quantitative measurement method and a comparison of polished cobalt-chromium tibial trays with titanium tibial trays

Wear ◽  
2021 ◽  
Vol 466-467 ◽  
pp. 203552
Author(s):  
Steffen Braun ◽  
Maximilian Uhler ◽  
Therese Bormann ◽  
Stefan Schroeder ◽  
Sebastian Jaeger ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Measurement Method ◽  
Quantitative Measurement ◽  
Cobalt Chromium ◽  
Backside Wear ◽  
Total Knee

scholarly journals Twelve-Year Outcomes of an Oxinium Total Knee Replacement Compared with the Same Cobalt-Chromium Design

2017 ◽  
Vol 99 (4) ◽  
pp. 275-283 ◽  
Author(s):  
Christopher J. Vertullo ◽  
Peter L. Lewis ◽  
Stephen Graves ◽  
Lan Kelly ◽  
Michelle Lorimer ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Cobalt Chromium ◽  
Total Knee

scholarly journals A comparative surface topographical analysis of explanted total knee replacement prostheses: Oxidised zirconium vs cobalt chromium femoral components

2017 ◽  
Vol 50 ◽  
pp. 59-64 ◽  
Author(s):  
Emma Kennard ◽  
Susan C. Scholes ◽  
Raghavendra Sidaginamale ◽  
Rajkumar Gangadharan ◽  
David J. Weir ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Cobalt Chromium ◽  
Total Knee ◽  
Topographical Analysis
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