Wear Analysis of Extracted Polyethylene Acetabular Cups Using a 3D Optical Scanner

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU128697" target="_blank" >RIV/00216305:26210/18:PU128697 - isvavai.cz</a>

Result on the web

<a href="https://www.proquest.com/docview/2042173814?accountid=17115" target="_blank" >https://www.proquest.com/docview/2042173814?accountid=17115</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Wear Analysis of Extracted Polyethylene Acetabular Cups Using a 3D Optical Scanner

Original language description

Wear analysis of total hip replacements (THR) is considered as one of the most relevant research areas helping to improve the longevity and the overall design of the THR. The co-ordinate machine method (CMM) andFourier profilometry are the most common methods for measuring the THR wear today. This paper presents optical scanner digitalization as a new method for measuring the wear of polyethylene acetabular cups. The aim of this paper is to explore the potential of this method for the polyethylene wear measurements. Optical scans for the purposes of this study were produced by the 3D optical scanner ATOS Triple Scan. The optical scanner is efficient and it can measure a large number of points for polygonisation and for further development of the pre-worn models. In this study, the scanner first generated point clouds on a sample of 13 retrieved UHMWPE acetabular cups. Next, volumetric models of the cups were created by polygonising the point clouds. Reverse engineering was used to develop models of the original acetabular cups using the geometry of the unworn parts of the retrieved cups. A comparison of the two models then showed the total volume of the polyethylene debris. The optical scanning method was validated against the gravimetric method using three new acetabular cups that were worn out on a hip pendulum simulator. Validation shows that the optical scanning method is a valid method for wear analysis of the retrieved UHMWPE acetabular cups.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20301 - Mechanical engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

TRIBOLOGY & LUBRICATION TECHNOLOGY

ISSN

1545-858X

e-ISSN

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Volume of the periodical

74

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

68-84

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85048393506