| Autor: |
Naylor A; School of Mechanical and Systems Engineering, Newcastle University, Newcastle upon Tyne, England NE1 7RU, UK. andrew.naylor@newcastle.ac.uk., Talwalkar SC; Upper Limb Research Unit, Wrightington Hospital, Wigan, England WN6 9EP, UK. sctalwalkar@gmail.com., Trail IA; Upper Limb Research Unit, Wrightington Hospital, Wigan, England WN6 9EP, UK. ian.trail@wwl.nhs.uk., Joyce TJ; School of Mechanical and Systems Engineering, Newcastle University, Newcastle upon Tyne, England NE1 7RU, UK. thomas.joyce@newcastle.ac.uk. |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of functional biomaterials [J Funct Biomater] 2016 Apr 14; Vol. 7 (2). Date of Electronic Publication: 2016 Apr 14. |
| DOI: |
10.3390/jfb7020009 |
| Abstrakt: |
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. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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