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Roughness digital characterization and influence on wear of retrieved knee components

Applied Sciences (Switzerland), ISSN: 2076-3417, Vol: 11, Issue: 23
2021
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Article Description

Tribological performance of knee components are strongly related to the surface character-istics. Primarily, the roughness and its 3D distribution on the surfaces affect the joint performance. One of the main limitations related to the tribological study of knee prostheses is that most of the research studies report in vitro or in silico results, as knee retrievals are difficult to find or are too damaged to be analyzed. This paper is focused on the roughness characterization of retrieved metal femoral components of total knee replacements (TKR) by means of a rugosimeter and involving digital methods to reconstruct the 3D topography of the studied surfaces. The aim of this study is to investigate how changes and distribution of roughness are correlated between the medial vs. the lateral part and how the resulting digital topography can give insights about the wear behavior.

Bibliographic Details

Saverio Affatato; Alessandro Ruggiero; Silvia Logozzo; Maria Cristina Valigi

MDPI AG

Materials Science; Physics and Astronomy; Engineering; Chemical Engineering; Computer Science

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