Distinctive damage patterns on THA metal bearing surfaces: case studies. Iowa Orthop J 2014;34:84-93
Date
10/21/2014Pubmed ID
25328465Pubmed Central ID
PMC4127716Scopus ID
2-s2.0-84931576824 (requires institutional sign-in at Scopus site) 3 CitationsAbstract
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 TDAuthor
Karen Kruger PhD Research Assistant Professor in the MU-MCW Department of Biomedical Engineering department at Marquette UniversityMESH terms used to index this publication - Major topics in bold
Arthroplasty, Replacement, HipHip Prosthesis
Humans
Metals
Prosthesis Design
Prosthesis Failure