Digital photogrammetry for quantitative wear analysis of retrieved TKA components

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
J C GrochowskySteven M Kurtz

Abstract

The use of new materials in knee arthroplasty demands a way in which to accurately quantify wear in retrieved components. Methods such as damage scoring, coordinate measurement, and in vivo wear analysis have been used in the past. The limitations in these methods illustrate a need for a different methodology that can accurately quantify wear, which is relatively easy to perform and uses a minimal amount of expensive equipment. Off-the-shelf digital photogrammetry represents a potentially quick and easy alternative to what is readily available. Eighty tibial inserts were visually examined for front and backside wear and digitally photographed in the presence of two calibrated reference fields. All images were segmented (via manual and automated algorithms) using Adobe Photoshop and National Institute of Health ImageJ. Finally, wear was determined using ImageJ and Rhinoceros software. The absolute accuracy of the method and repeatability/reproducibility by different observers were measured in order to determine the uncertainty of wear measurements. To determine if variation in wear measurements was due to implant design, 35 implants of the three most prevalent designs were subjected to retrieval analysis. The overall accuracy of...Continue Reading

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Citations

Apr 5, 2011·Journal of Materials Science. Materials in Medicine·Melinda HarmanMarco Viceconti
May 18, 2011·The Journal of Arthroplasty·UNKNOWN Implant Research Center Writing CommitteeClare M Rimnac
Sep 30, 2010·The Journal of Arthroplasty·Abtin AkbariDaniel J Schnettgoecke
Aug 24, 2012·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Christopher B Knowlton, Markus A Wimmer
Mar 30, 2013·Organogenesis·Erica G TierneyFergal J O'Brien
Nov 7, 2019·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Matthias WoiczinskiPatrick Weber
Jan 1, 2012·International Journal of Spine Surgery·Steven M KurtzFrank W Chan

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