Metal Versus Polyethylene Wear Particles in Total Hip Replacements

1996 ◽  
Vol 329 ◽  
pp. S206-S216 ◽  
Author(s):  
Peter F. Doorn ◽  
Patricia A. Campbell ◽  
Harlan C. Amstutz
Keyword(s):  
Polyethylene Wear ◽  
Wear Particles ◽  
Total Hip ◽  
Total Hip Replacements ◽  
Hip Replacements

Shapes and dimensional characteristics of polyethylene wear particles generatedin vivo by total knee replacements compared to total hip replacements

1997 ◽  
Vol 38 (3) ◽  
pp. 203-210 ◽  
Author(s):  
Thomas P. Schmalzried ◽  
Pat Campbell ◽  
Alexandra K. Schmitt ◽  
Ian C. Brown ◽  
Harlan C. Amstutz
Keyword(s):  
Polyethylene Wear ◽  
Wear Particles ◽  
Total Hip ◽  
Total Knee Replacements ◽  
Total Hip Replacements ◽  
Knee Replacements ◽  
Hip Replacements ◽  
Total Knee

ACCURACY OF MEASUREMENT OF POLYETHYLENE WEAR WITH USE OF RADIOGRAPHS OF TOTAL HIP REPLACEMENTS

2003 ◽  
Vol 85 (12) ◽  
pp. 2378-2384 ◽  
Author(s):  
EDWARD EBRAMZADEH ◽  
SOPHIA N. SANGIORGIO ◽  
FEDERICO LATTUADA ◽  
JOON-SOON KANG ◽  
ROBERTO CHIESA ◽  
...  
Keyword(s):  
Polyethylene Wear ◽  
Total Hip ◽  
Total Hip Replacements ◽  
Hip Replacements ◽  
Accuracy Of Measurement

scholarly journals Automated assessment of polyethylene wear in cemented acetabular components using anteroposterior radiographs of total hip replacements

2008 ◽  
Vol 32 (3) ◽  
pp. 221-238 ◽  
Author(s):  
C. Stuart Kerrigan ◽  
Stephen J. McKenna ◽  
Ian W. Ricketts ◽  
Carlos Wigderowitz
Keyword(s):  
Polyethylene Wear ◽  
Automated Assessment ◽  
Total Hip ◽  
Total Hip Replacements ◽  
Hip Replacements ◽  
Acetabular Components

scholarly journals Finite element analysis of polyethylene wear in total hip replacement: A literature review

2019 ◽  
Vol 233 (11) ◽  
pp. 1067-1088 ◽  
Author(s):  
Lin Wang ◽  
Graham Isaac ◽  
Ruth Wilcox ◽  
Alison Jones ◽  
Jonathan Thompson
Keyword(s):  
Finite Element ◽  
Literature Review ◽  
Hip Replacement ◽  
Material Selection ◽  
Polyethylene Wear ◽  
Element Analysis ◽  
Total Hip ◽  
Total Hip Replacements ◽  
Hip Replacements ◽  
Modelling Techniques

Evaluation and prediction of wear play a key role in product design and material selection of total hip replacements, because wear debris is one of the main causes of loosening and failure. Multifactorial clinical or laboratory studies are high cost and require unfeasible timeframes for implant development. Simulation using finite element methods is an efficient and inexpensive alternative to predict wear and pre-screen various parameters. This article presents a comprehensive literature review of the state-of-the-art finite element modelling techniques that have been applied to evaluate wear in polyethylene hip replacement components. A number of knowledge gaps are identified including the need to develop appropriate wear coefficients and the analysis of daily living activities.

In Vivo Polyethylene Wear of Bilateral Total Hip Replacements - Cemented versus Uncemented Modular Sockets

2010 ◽  
Vol 20 (4) ◽  
pp. 447-452 ◽  
Author(s):  
Rebecca J. Kampa ◽  
Andrew Hacker ◽  
Emmett Griffiths ◽  
John W. Rosson
Keyword(s):  
Polyethylene Wear ◽  
Total Hip ◽  
Total Hip Replacements ◽  
Hip Replacements

Polyethylene Wear Debris Produced in a Knee Simulator Model: Effect of Crosslinking and Counterface Material

2007 ◽  
Author(s):  
Paul A. Williams ◽  
Cindy M. Brown ◽  
Riichro Tsukamoto ◽  
Takashi Nakamura ◽  
Ian C. Clarke
Keyword(s):  
Wear Debris ◽  
Polyethylene Wear ◽  
Total Hip ◽  
Total Knee Replacements ◽  
Knee Simulator ◽  
Total Hip Replacements ◽  
Gravimetric Measurements ◽  
Knee Replacements ◽  
Hip Replacements ◽  
Total Knee

Polyethylene (PE) debris has been examined in total hip replacements from clinical retrievals and laboratory simulator studies, but little is known about PE debris from total knee replacements. In this study we investigated the effects of crosslinking PE and the counterface material. Mildly and highly crosslinked PE were studied in combination with CoCr and Zirconia femoral components. Wear was determined by gravimetric measurements and the wear debris was isolated and morphologically characterized. Although the zirconia counterface with 7 Mrad PE did not exhibit measurable wear, wear debris was found. This indicated that wear occurred below the limits of the gravimetric approach. This study showed that the amount of crosslinking of PE and the counterface material were important factors in the wear of PE in a knee simulator model.

In vitro analysis of the wear, wear debris and biological activity of surface-engineered coatings for use in metal-on-metal total hip replacements

2003 ◽  
Vol 217 (3) ◽  
pp. 155-163 ◽  
Author(s):  
S Williams ◽  
J L Tipper ◽  
E Ingham ◽  
M H Stone ◽  
J Fisher
Keyword(s):  
Biological Activity ◽  
Wear Debris ◽  
Cytotoxic Effect ◽  
Wear Particles ◽  
Total Hip ◽  
Geometry Model ◽  
Total Hip Replacements ◽  
Metal On Metal ◽  
Metal Ion Release ◽  
Hip Replacements

Extremely low wear rates have been reported for metal-on-metal total hip replacements, but concerns remain about the effects of metal ion release, dissolution rates and toxicity. Surface-engineered coatings have the potential to improve wear resistance and reduce the biological activity of the wear debris produced. The aim of this study was to examine the wear and wear debris generation from surface-engineered coatings: titanium nitride (TiN), chromium nitride (CrN) and chromium carbon nitride (CrCN) applied to a cobalt-chrome alloy (CoCr) substrate. The coatings were articulated against themselves in a simple geometry model. The wear particles generated were characterized and the cytotoxic effect on U937 macrophages and L929 fibroblasts assessed. The CrN and CrCN coatings showed a decrease in wear compared to the CoCr bearings and produced small (less than 40 nm in length) wear particles. The wear particles released from the surface engineered bearings also showed a decreased cytotoxic effect on cells compared to the CoCr alloy debris. The reduced wear volumes coupled with the reduced cytotoxicity per unit volume of wear indicate the potential for the clinical application of this technology.

Wear and Morphology of Ultra-High Molecular Weight Polyethylene Wear Particles from Total Hip Replacements

1996 ◽  
Vol 210 (3) ◽  
pp. 167-174 ◽  
Author(s):  
P Campbell ◽  
P Doom ◽  
F Dorey ◽  
H C Amstutz
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Polyethylene Wear ◽  
Image Analysis System ◽  
Wear Particles ◽  
Total Hip ◽  
Hip Replacements ◽  
Size And Morphology ◽  
Ultra High Molecular Weight ◽  
Cobalt Chrome

The wear rate of ultra-high molecular weight polyethylene total hip replacement components is known to be influenced by various factors such as material and design. However, it is not known if these factors affect the size or morphology of the wear particles. The aim of this study was to compare the polyethylene wear particles from hip replacements of differing bearing materials and designs. Tissues were obtained at the revision surgeries of patients with surface replacements with titanium alloy or cobalt-chrome alloy femoral components up to 51 mm in diameter, and stem-type hip replacements with cobalt-chrome or alumina ceramic femoral components that were 28 or 32 mm in diameter. The polyethylene particles were isolated following tissue digestion and density gradient separation, and then studied by scanning electron microscopy. A computerized image analysis system was used to measure the diameter and length of the particles. The majority of wear particles were submicron in diameter. No systematic differences in size and morphology were found between the groups in this study. The similarity in size and morphology of the wear particles suggested that the same basic wear mechanisms were occurring in these components.

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