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Materials 2014, 7(3), 1866-1879; doi:10.3390/ma7031866

Surface Characterization of Retrieved Metal-on-Metal Total Hip Implants from Patients with Adverse Reaction to Metal Debris

1
Department of Bioengineering, University of Texas at Dallas, 800 W. Campbell Rd., Richardson, TX 75080, USA
2
Department of Orthopedic Surgery, University of Texas Southwestern Medical Center, 1801 Inwood Rd., Dallas, TX 75235, USA
*
Author to whom correspondence should be addressed.
Received: 29 December 2013 / Revised: 20 February 2014 / Accepted: 25 February 2014 / Published: 4 March 2014
(This article belongs to the Section Structure Analysis and Characterization)
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Abstract

The use of metal-on-metal (MoM) total hip implants has decreased recently due to reports of high failure rates and adverse local tissue reaction (ALTR). It has been hypothesized that wear metal debris released from CoCr bearing surfaces may provoke delayed hypersensitivity reactions. The goal of this study is to evaluate the microscopic bearing surface characteristics of implants revised due to evidence of ALTR. The bearing surface of each head and cup was analyzed using multiple microscopy techniques for characterization of the surface features. The presence of severe mechanical scratching was a common characteristic found in all of the implants evaluated. Mechanical factors seemed to be the prevalent failure mode related to the appearance of ALTR with this particular set of retrieved implants. View Full-Text
Keywords: metal-on-metal; adverse local tissue reaction; retrieval; pseudotumor metal-on-metal; adverse local tissue reaction; retrieval; pseudotumor
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Burbano, M.; Russell, R.; Huo, M.; Welch, R.; Roy, D.; Rodrigues, D.C. Surface Characterization of Retrieved Metal-on-Metal Total Hip Implants from Patients with Adverse Reaction to Metal Debris. Materials 2014, 7, 1866-1879.

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