Running-in friction of hip joint replacements can be significantly reduced: The effect of surface-textured acetabular cup
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU135623" target="_blank" >RIV/00216305:26210/20:PU135623 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s40544-019-0351-x" target="_blank" >https://link.springer.com/article/10.1007/s40544-019-0351-x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s40544-019-0351-x" target="_blank" >10.1007/s40544-019-0351-x</a>
Alternative languages
Result language
angličtina
Original language name
Running-in friction of hip joint replacements can be significantly reduced: The effect of surface-textured acetabular cup
Original language description
Hip joint replacements represent the most effective way of treatment for patients suffering from joint diseases. Despite the rapid improvement of implant materials over the last few decades, limited longevity associated with wear-related complications persists as the main drawback. Therefore, improved tribological performance is required in order to extend the service life of replacements. The effect of surface texturing of UHMWPE acetabular cup was investigated in the present study. Unique tilling method was utilized for manufacturing the dimples with controlled diameter and depths on the contact surface of the cup. The experiments with four commercial femoral components and two model lubricants were realized. The main attention was paid to a coefficient of friction considering the differences between the original and the dimpled cups. Results showed remarkable lowering of friction, in general. Focusing on the simulated human synovial fluid, friction was reduced by 40% (alumina ceramic), 38.8% (zirconia toughened ceramic), 25.5% (metal), and 9.9% (oxinium). In addition, the dimples helped to keep the friction stable without fluctuations. To conclude, the paper brings a new insight into frictional behaviour of the hip replacements during running-in phase which is essential for overall implant lifespan. It is believed that proper surface texturing may rapidly improve the life quality of millions of patients and may lead to considerable financial savings.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
<a href="/en/project/LTAUSA17150" target="_blank" >LTAUSA17150: The effect of tribological processes on the durability of knee joint replacements</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Friction
ISSN
2223-7690
e-ISSN
2223-7704
Volume of the periodical
8
Issue of the periodical within the volume
6
Country of publishing house
CN - CHINA
Number of pages
16
Pages from-to
1137-1152
UT code for WoS article
000516359500001
EID of the result in the Scopus database
2-s2.0-85079695806