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Distinctive damage patterns on THA metal bearing surfaces: case studies. Iowa Orthop J 2014;34:84-93

Date

10/21/2014

Pubmed ID

25328465

Pubmed Central ID

PMC4127716

Scopus ID

2-s2.0-84931576824 (requires institutional sign-in at Scopus site)   3 Citations

Abstract

Retrieval analysis of total joint arthroplasty components has primarily focused on assessing wear or other damage to polyethylene components. As damage to the opposing bearing surface can accelerate polyethylene wear and damage, and especially with the use of hard-on-hard articulations, retrieval analysis benefits from incorporating evaluation of hard bearing surfaces as well. The purpose of this study is to report six case studies of metal bearing surfaces with distinctive damage patterns, to interpret them in the context of adverse events plausibly responsible for their creation, and to suggest their likely clinical or scientific significance. The specific damage patterns reported here are 1) extensive scraping, 2) circumferential discoloration, 3) a long chain of periodic micro-indentations, 4) pitting with deposits, 5) scratches with small-radius directional changes, and 6) indentation with scraping.

Author List

Heiner AD, Tikekar NM, Kruger KM, Lannutti JJ, Brown TD

Author

Karen Kruger PhD Research Assistant Professor in the MU-MCW Department of Biomedical Engineering department at Marquette University




MESH terms used to index this publication - Major topics in bold

Arthroplasty, Replacement, Hip
Hip Prosthesis
Humans
Metals
Prosthesis Design
Prosthesis Failure