Evaluating the Surface Topography of Pyrolytic Carbon Finger Prostheses through Measurement of Various Roughness Parameters
作者： Andrew Naylor , Sumedh Talwalkar , Ian Trail , Thomas Joyce
DOI: 10.3390/JFB7020009
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摘要: The articulating surfaces of four different sizes 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 (Sq); skewness (Ssk); and kurtosis (Sku). radii the measured coordinate machine, found to be: 2.5, 3.3, 4.2 4.7 mm for proximal, 4.0, 5.1, 5.6 6.3 medial components. ANOVA was used assess relationship between component each parameter. Sa, Sq Ssk correlated negatively with radius (p = 0.001, 0.023), whilst Sku positively 0.03). Ergo, largest possessed better characteristics: low roughness, negative skewness, high kurtosis. Conversely, smallest had poorer characteristics.
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