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Volume & Issue no: Volume 7, Issue 10, October 2018

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Title:
Surface micro-texturing of the prosthetic femoral head to reduce friction & wear, chimera or reality?
Author Name:
Lucian Capitanu, Liliana-Laura Badita, Constantin Tiganesteanu, Virgil Florescu , Liviu Florin Isvoranu
Abstract:
ABSTRACT Over the past 20 years, the results of the assiduous concerns regarding the reduction of friction and wear in the joint between the femoral head and the acetabular cup of the classical total hip prosthesis, metal on polyethylene (MoP) have been published, by adopting a technical solution that gives rise to a lot of interest, namely micro-texturing of the femoral head surface. Microtexturing can provide in good conditions both the elastohydrodynamic (EHD) lubrication of the joint and the decrease in wear due to the obstruction of the wear particles circulation between the femoral head and the acetabular cup, as a result of their locking within the micro-texture applied on the femoral head surface. In this way, it prevents both the scratching of the acetabular cup surface made of ultra-high molecular weight polyethylene (UHMWPE), and of the femoral head. This paper discusses about the validity of the possibility of increasing the artificial hip joint durability, as a result of the wear resistance increase of the femoral head by micro-texturing its surface. The paper focuses on the possibility of micro-texturing the Co-Cr femoral head surface by means of a programmed multi-indentation technique. Keywords: total hip prosthesis, micro-texturing, multi-indentation, Co-Cr alloy, friction
Cite this article:
Lucian Capitanu, Liliana-Laura Badita, Constantin Tiganesteanu, Virgil Florescu , Liviu Florin Isvoranu , " Surface micro-texturing of the prosthetic femoral head to reduce friction & wear, chimera or reality?" , International Journal of Application or Innovation in Engineering & Management (IJAIEM) , Volume 7, Issue 10, October 2018 , pp. 015-030 , ISSN 2319 - 4847.
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