Cargando…

Differentiation between mechanically loose and fixed press-fit implants using quantitative acoustics and load self-referencing: A phantom study on shoulder prostheses in polyurethane foam

This study proposes to use cross-interface quantitative acoustics (ci-qA) and load self-referencing (LSR) to assess implant stability in a radiation-free, inexpensive, rapid, and quantitative manner. Eight bone analog specimens, made from polyurethane foam, were implanted with a cementless stemless...

Descripción completa

Detalles Bibliográficos
Autores principales: Vogl, Florian, Greger, Stefanie, Favre, Philippe, Taylor, William R., Thistlethwaite, Paul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7259646/
https://www.ncbi.nlm.nih.gov/pubmed/32469919
http://dx.doi.org/10.1371/journal.pone.0233548
_version_ 1783540174490173440
author Vogl, Florian
Greger, Stefanie
Favre, Philippe
Taylor, William R.
Thistlethwaite, Paul
author_facet Vogl, Florian
Greger, Stefanie
Favre, Philippe
Taylor, William R.
Thistlethwaite, Paul
author_sort Vogl, Florian
collection PubMed
description This study proposes to use cross-interface quantitative acoustics (ci-qA) and load self-referencing (LSR) to assess implant stability in a radiation-free, inexpensive, rapid, and quantitative manner. Eight bone analog specimens, made from polyurethane foam, were implanted with a cementless stemless shoulder implant—first in a fixed and later in a loose configuration—and measured using ci-qA under two load conditions. The loose implants exhibited higher micromotion and lower pull-out strength than their stable counterparts, with all values falling within the range of reported reference values. All acoustic characteristics differentiated between loose and fixed implants (maximum area-under-curve AUC = 1.0 for mean total signal energy, AUC = 1.0 for mean total signal energy ratio, AUC = 0.8 for harmonic ratio, and AUC = 0.92 for load self-referencing coefficient). While these results on bone substitute material will need to be confirmed on real bone specimen, ci-qA could ultimately facilitate the assessment of primary stability during implantation surgery and avoid unnecessary revision through quantitative evaluation of secondary stability during follow-up.
format Online
Article
Text
id pubmed-7259646
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-72596462020-06-08 Differentiation between mechanically loose and fixed press-fit implants using quantitative acoustics and load self-referencing: A phantom study on shoulder prostheses in polyurethane foam Vogl, Florian Greger, Stefanie Favre, Philippe Taylor, William R. Thistlethwaite, Paul PLoS One Research Article This study proposes to use cross-interface quantitative acoustics (ci-qA) and load self-referencing (LSR) to assess implant stability in a radiation-free, inexpensive, rapid, and quantitative manner. Eight bone analog specimens, made from polyurethane foam, were implanted with a cementless stemless shoulder implant—first in a fixed and later in a loose configuration—and measured using ci-qA under two load conditions. The loose implants exhibited higher micromotion and lower pull-out strength than their stable counterparts, with all values falling within the range of reported reference values. All acoustic characteristics differentiated between loose and fixed implants (maximum area-under-curve AUC = 1.0 for mean total signal energy, AUC = 1.0 for mean total signal energy ratio, AUC = 0.8 for harmonic ratio, and AUC = 0.92 for load self-referencing coefficient). While these results on bone substitute material will need to be confirmed on real bone specimen, ci-qA could ultimately facilitate the assessment of primary stability during implantation surgery and avoid unnecessary revision through quantitative evaluation of secondary stability during follow-up. Public Library of Science 2020-05-29 /pmc/articles/PMC7259646/ /pubmed/32469919 http://dx.doi.org/10.1371/journal.pone.0233548 Text en © 2020 Vogl et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Vogl, Florian
Greger, Stefanie
Favre, Philippe
Taylor, William R.
Thistlethwaite, Paul
Differentiation between mechanically loose and fixed press-fit implants using quantitative acoustics and load self-referencing: A phantom study on shoulder prostheses in polyurethane foam
title Differentiation between mechanically loose and fixed press-fit implants using quantitative acoustics and load self-referencing: A phantom study on shoulder prostheses in polyurethane foam
title_full Differentiation between mechanically loose and fixed press-fit implants using quantitative acoustics and load self-referencing: A phantom study on shoulder prostheses in polyurethane foam
title_fullStr Differentiation between mechanically loose and fixed press-fit implants using quantitative acoustics and load self-referencing: A phantom study on shoulder prostheses in polyurethane foam
title_full_unstemmed Differentiation between mechanically loose and fixed press-fit implants using quantitative acoustics and load self-referencing: A phantom study on shoulder prostheses in polyurethane foam
title_short Differentiation between mechanically loose and fixed press-fit implants using quantitative acoustics and load self-referencing: A phantom study on shoulder prostheses in polyurethane foam
title_sort differentiation between mechanically loose and fixed press-fit implants using quantitative acoustics and load self-referencing: a phantom study on shoulder prostheses in polyurethane foam
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7259646/
https://www.ncbi.nlm.nih.gov/pubmed/32469919
http://dx.doi.org/10.1371/journal.pone.0233548
work_keys_str_mv AT voglflorian differentiationbetweenmechanicallylooseandfixedpressfitimplantsusingquantitativeacousticsandloadselfreferencingaphantomstudyonshoulderprosthesesinpolyurethanefoam
AT gregerstefanie differentiationbetweenmechanicallylooseandfixedpressfitimplantsusingquantitativeacousticsandloadselfreferencingaphantomstudyonshoulderprosthesesinpolyurethanefoam
AT favrephilippe differentiationbetweenmechanicallylooseandfixedpressfitimplantsusingquantitativeacousticsandloadselfreferencingaphantomstudyonshoulderprosthesesinpolyurethanefoam
AT taylorwilliamr differentiationbetweenmechanicallylooseandfixedpressfitimplantsusingquantitativeacousticsandloadselfreferencingaphantomstudyonshoulderprosthesesinpolyurethanefoam
AT thistlethwaitepaul differentiationbetweenmechanicallylooseandfixedpressfitimplantsusingquantitativeacousticsandloadselfreferencingaphantomstudyonshoulderprosthesesinpolyurethanefoam