Validation of a roughness parameters for defining surface roughness of prosthetic polyethylene Pe-Lite liner

Hamzah, Nur Afiqah and Abd Razak, Nasrul Anuar and Ab Karim, Mohd Sayuti and Salleh, Siti Zuliana (2022) Validation of a roughness parameters for defining surface roughness of prosthetic polyethylene Pe-Lite liner. Scientific Reports, 12 (1). ISSN 2045-2322, DOI https://doi.org/10.1038/s41598-022-05173-3.

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Abstract

The Biosculptor's CNC milling machine, the Biomill, offered four different surfaces machined on positive models. This study aims to adopt the surface topography method in characterizing the four different surface roughness of polyethylene Pe-Lite liner as a product of the Biomill. Three surface parameters chosen were the arithmetic average (Ra), root mean square roughness (Rq), and ten-point height (Rz). The surface parameters were used to define the four different surfaces (STANDARD, FINE, COARSE, and FAST) and then compared with the same liner material from a conventionally fabricated socket. The Ra values of the conventional liner, 8.43 mu m, were determined to be in-between the Ra values of STANDARD and FAST surfaces which were 8.33 mu m and 8.58 mu m respectively. STANDARD surface required 43.2 min to be carved while FAST surface took almost only a third of the time compared to STANDARD surface (conventional socket takes 2-3 days). The results of this study would be one of the guidelines to the prosthetists using the Biosculptor in socket fabrication to produce sockets according to the suitable surface to cater to different requirements and levels of activity of each amputee.

Item Type: Article
Funders: Universiti Malaya[MRUN2019-1A]
Uncontrolled Keywords: Design;Skin;Optimization;Technology
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 23 Aug 2022 02:27
Last Modified: 23 Aug 2022 02:27
URI: http://eprints.um.edu.my/id/eprint/33352

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