Naylor, A, Talwalkar, S, Trail, I and Joyce, T (2016) Evaluating the Surface Topography of Pyrolytic Carbon Finger Prostheses through Measurement of Various Roughness Parameters. Journal of Functional Biomaterials, 7 (2). ISSN 2079-4983

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Abstract

The articulating surfaces of four different sizes of unused pyrolytic carbon proximal interphalangeal prostheses (PIP) were evaluated though measuring several topographical parameters using a white light interferometer: average roughness (Sa); root mean-square roughness (Sq); skewness (Ssk); and kurtosis (Sku). The radii of the articulating surfaces were measured using a coordinate measuring machine, and were found to be: 2.5, 3.3, 4.2 and 4.7 mm for proximal, and 4.0, 5.1, 5.6 and 6.3 mm for medial components. ANOVA was used to assess the relationship between the component radii and each roughness parameter. Sa, Sq and Ssk correlated negatively with radius (p = 0.001, 0.001, 0.023), whilst Sku correlated positively with radius (p = 0.03). Ergo, the surfaces with the largest radii possessed the better topographical characteristics: low roughness, negative skewness, high kurtosis. Conversely, the surfaces with the smallest radii had poorer topographical characteristics.

Item Type:	Article
Uncontrolled Keywords:	0903 Biomedical Engineering, 1004 Medical Biotechnology
Subjects:	R Medicine > R Medicine (General) T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Engineering
Publisher:	MDPI AG
Date Deposited:	10 Nov 2021 12:15
Last Modified:	10 Nov 2021 12:15
DOI or ID number:	10.3390/jfb7020009
URI:	https://researchonline.ljmu.ac.uk/id/eprint/15767

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