Tribo-corrosion analysis of wear and metal ion release interactions from metal-on-metal and ceramic-on-metal contacts for the application in artificial hip prostheses

2008 ◽  
Vol 222 (3) ◽  
pp. 483-492 ◽  
Author(s):  
Y Yan ◽  
A Neville ◽  
D Dowson ◽  
S Williams ◽  
J Fisher
Keyword(s):  
Metal Ion ◽  
Metal Contacts ◽  
Ion Release ◽  
Hip Prostheses ◽  
Metal On Metal ◽  
Metal Ion Release ◽  
Artificial Hip

Predictivity and Fate of Metal Ion Release From Metal-On-Metal Total Hip Prostheses

2014 ◽  
Vol 29 (9) ◽  
pp. 1763-1767 ◽  
Author(s):  
Annamaria Nicolli ◽  
Gianluca Bisinella ◽  
Giovanni Padovani ◽  
Antonio Vitella ◽  
Federica Chiara ◽  
...  
Keyword(s):  
Metal Ion ◽  
Ion Release ◽  
Hip Prostheses ◽  
Total Hip ◽  
Metal On Metal ◽  
Metal Ion Release ◽  
Total Hip Prostheses

scholarly journals Metal Ion Release, Clinical and Radiological Outcomes in Large Diameter Metal-on-Metal Total Hip Arthroplasty at Long-Term Follow-Up

Diagnostics ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 941
Author(s):  
Assunta Pozzuoli ◽  
Antonio Berizzi ◽  
Alberto Crimì ◽  
Elisa Belluzzi ◽  
Anna Chiara Frigo ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Metal Ion ◽  
Local Level ◽  
Harris Hip Score ◽  
Control Group ◽  
Ion Release ◽  
Total Hip ◽  
Metal On Metal ◽  
Metal Ion Release

Total hip arthroplasty (THA) with metal-on-metal (MoM) bearings have shown problems of biocompatibility linked to metal ion release at the local level causing an adverse reaction to metal debris (ARMD) and at a systemic level. The aim of this study was to evaluate clinical and radiological outcomes, and metal ion concentrations in the blood and urine of patients who underwent THA with the LIMA Met-Met hip system. Patients with ceramic-on-ceramic (CoC) bearings were included as a control group. In this study, 68 patients were enrolled: 34 with MoM THAs and 34 with CoC THAs. Patients were evaluated clinically (Harris Hip Score, SF-36) and radiologically at a median of 7.4 years after surgery. Whole blood and urinary cobalt and chromium levels were also assessed. Both types of implants were comparable in terms of clinical and functional results. Ion levels were significantly higher in the MoM group compared with CoC group 7 years after surgery. No correlations were found between metal ion levels and patient demographics, functional and radiological outcomes, and prosthesis features. Patient monitoring is thus advised to establish if prosthesis revision is necessary, especially in the case of MoM THA.

scholarly journals A novel ceramic coating for reduced metal ion release in metal-on-metal hip surgery

2016 ◽  
Vol 4 ◽  
Author(s):  
Coathup Melanie ◽  
Ferro De Godoy Roberta ◽  
Meswania Jay ◽  
Tyler Philippa ◽  
Hargunani Rikin ◽  
...  
Keyword(s):  
Metal Ion ◽  
Ceramic Coating ◽  
Hip Surgery ◽  
Ion Release ◽  
Metal On Metal ◽  
Metal Ion Release

Bearing surfaces

2011 ◽  
Author(s):  
Gordon Blunn
Keyword(s):  
Metal Ion ◽  
Polyethylene Wear ◽  
Ion Release ◽  
Wear Rates ◽  
Metal On Metal ◽  
Metal Ion Release ◽  
Hip Replacements ◽  
Alternative Material ◽  
Catastrophic Fracture ◽  
The 1960S

♦ Traditionally bearings were made from polyethylene and cobalt chrome. These bearings are still most commonly used for knee replacements. In hip replacements due to osteolysis caused by polyethylene wear alternative material combinations at the bearing surface are used♦ Highly cross linked plastics have been developed and have been shown to reduce wear. There are a number of different types available which differ in their performance♦ Metal on metal bearings first used in the 1960s have also been developed and show very low wear rates. These bearings are more susceptible to edge loading and the resulting metal ion release can result in adverse biological reactions leading to failure♦ Whilst ceramic on plastic surfaces have been used for a considerable amount of time the reduction in wear is not as great as with well functioning metal on metal bearings♦ Ceramic on ceramic bearings have been used for a considerable time and show even lower wear rates than metal on metal bearings. In the past there has been an incidence of catastrophic fracture of these bearings but developments in materials technology have considerably reduced these events.

Metal ion release from bearing wear and corrosion with 28 mm and large-diameter metal-on-metal bearing articulations

2010 ◽  
Vol 92-B (1) ◽  
pp. 12-19 ◽  
Author(s):  
P.-A. Vendittoli ◽  
A. Roy ◽  
S. Mottard ◽  
J. Girard ◽  
D. Lusignan ◽  
...  
Keyword(s):  
Metal Ion ◽  
Large Diameter ◽  
Ion Release ◽  
Wear And Corrosion ◽  
Metal On Metal ◽  
Metal Ion Release

scholarly journals A novel ceramic coating for reduced metal ion release in metal‐on‐metal hip surgery

2018 ◽  
Vol 107 (6) ◽  
pp. 1760-1771
Author(s):  
Gordon W. Blunn ◽  
Roberta Ferro De Godoy ◽  
Jayantilal Meswania ◽  
Tim W. R. Briggs ◽  
Philippa Tyler ◽  
...  
Keyword(s):  
Metal Ion ◽  
Ceramic Coating ◽  
Hip Surgery ◽  
Ion Release ◽  
Metal On Metal ◽  
Metal Ion Release

An in vitro study of the reduction in wear of metal-on-metal hip prostheses using surface-engineered femoral heads

2002 ◽  
Vol 216 (4) ◽  
pp. 219-230 ◽  
Author(s):  
J Fisher ◽  
X Q Hu ◽  
J L Tipper ◽  
T D Stewart ◽  
S Williams ◽  
...  
Keyword(s):  
Metal Ion ◽  
Ion Concentration ◽  
Chromium Alloy ◽  
Wear Particles ◽  
Cobalt Chromium ◽  
Hip Prostheses ◽  
Metal On Metal ◽  
Metal Ion Release ◽  
Femoral Heads ◽  
Cobalt Chromium Alloy

Although the wear of existing metal-on-metal (MOM) hip prostheses (1 mm3/106 cycles) is much lower than the more widely used polyethylene-on-metal bearings, there are concerns about the toxicity of metal wear particles and elevated metal ion levels, both locally and systemically, in the human body. The aim of this study was to investigate the possibility of reducing the volume of wear, the concentration of metal debris and the level of metal ion release through using surfaceengineered femoral heads. Three thick (8-12 μm) coatings (TiN, CrN and CrCN) and one thin (2 μm) coating (diamond-like carbon, DLC), were evaluated on the femoral heads when articulating against high carbon content cobalt-chromium alloy acetabular inserts (HC CoCrMo) and compared with a clinically used MOM cobalt-chromium alloy bearing couple using a physiological anatomical hip joint simulator (Leeds Mark II). This study showed that CrN, CrCN and DLC coatings produced substantially lower wear volumes for both the coated femoral heads and the HC CoCrMo inserts. The TiN coating itself had little wear, but it caused relatively high wear of the HC CoCrMo inserts compared with the other coatings. The majority of the wear debris for all half-coated couples comprised small, 30 nm or less, CoCrMo metal particles. The Co, Cr and Mo ion concentrations released from the bearing couples of CrN-, CrCN- and DLC-coated heads articulating against HC CoCrMo inserts were at least 7 times lower than those released from the clinical MOM prostheses. These surface-engineered femoral heads articulating on HC CoCrMo acetabular inserts produced significantly lower wear volumes and rates, and hence lower volumetric concentrations of wear particles, compared with the clinical MOM prosthesis. The substantially lower ion concentration released by these surface-engineered components provides important evidence to support the clinical application of this technology.

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