A Better Understanding of the Surface Topography at the Stem-Cement Interface

H. Zhang, L. Brown, L. Blunt

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The long term stabilization and durability of cemented total hip replacement (THR) depends on not only the bulk properties of the components but also the interfaces through which they interact. The stem-cement interface has been consistently considered as a weak link in the stem-cementbone system, being a transitional zone between two materials with significantly different mechanical properties. Previous research concerning this interface has been limited to investigation of interfacial shear strength through in vitro test and finite element analysis (FEA). Until now, a deep insight into the contact characteristics at this interface, especially the interaction between femoral stems with various surface finishes and bone cement, has not been established. In addition, it is still an area of debate whether a permanent fixation can be achieved by utilizing a matt femoral stem, and furthermore it is another matter of concern that a matt femoral stem would cause much more damage to the cement mantle, resulting in an acceleration of aseptic loosening of the femoral stem. This present study investigated the surface topography of stainless steel rods and Simplex P bone cement obtained from a series of pull out tests in order to gain a better understanding of the interaction at the stem-cement interface.

LanguageEnglish
Title of host publication2007 Proceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2007
Pages513-515
Number of pages3
VolumePART A
ISBN (Electronic)0791838110
DOIs
Publication statusPublished - 2007
EventAmerican Society of Mechanical Engineers & Society of Tribologists and Lubrication International Joint Tribology Conference - San Diego, United States
Duration: 22 Oct 200724 Oct 2007

Conference

ConferenceAmerican Society of Mechanical Engineers & Society of Tribologists and Lubrication International Joint Tribology Conference
Abbreviated titleASME/STLE IJTC 2007
CountryUnited States
CitySan Diego
Period22/10/0724/10/07

Fingerprint

Surface topography
cements
stems
Bone cement
Bone Cements
topography
Cements
Methylmethacrylate
Stainless Steel
Shear strength
Durability
bones
Stainless steel
Stabilization
Finite element method
Mechanical properties
shear strength
durability
stainless steels
Earth mantle

Cite this

Zhang, H., Brown, L., & Blunt, L. (2007). A Better Understanding of the Surface Topography at the Stem-Cement Interface. In 2007 Proceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2007 (Vol. PART A, pp. 513-515) https://doi.org/10.1115/IJTC2007-44019
Zhang, H. ; Brown, L. ; Blunt, L. / A Better Understanding of the Surface Topography at the Stem-Cement Interface. 2007 Proceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2007. Vol. PART A 2007. pp. 513-515
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Zhang, H, Brown, L & Blunt, L 2007, A Better Understanding of the Surface Topography at the Stem-Cement Interface. in 2007 Proceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2007. vol. PART A, pp. 513-515, American Society of Mechanical Engineers & Society of Tribologists and Lubrication International Joint Tribology Conference, San Diego, United States, 22/10/07. https://doi.org/10.1115/IJTC2007-44019

A Better Understanding of the Surface Topography at the Stem-Cement Interface. / Zhang, H.; Brown, L.; Blunt, L.

2007 Proceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2007. Vol. PART A 2007. p. 513-515.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - The long term stabilization and durability of cemented total hip replacement (THR) depends on not only the bulk properties of the components but also the interfaces through which they interact. The stem-cement interface has been consistently considered as a weak link in the stem-cementbone system, being a transitional zone between two materials with significantly different mechanical properties. Previous research concerning this interface has been limited to investigation of interfacial shear strength through in vitro test and finite element analysis (FEA). Until now, a deep insight into the contact characteristics at this interface, especially the interaction between femoral stems with various surface finishes and bone cement, has not been established. In addition, it is still an area of debate whether a permanent fixation can be achieved by utilizing a matt femoral stem, and furthermore it is another matter of concern that a matt femoral stem would cause much more damage to the cement mantle, resulting in an acceleration of aseptic loosening of the femoral stem. This present study investigated the surface topography of stainless steel rods and Simplex P bone cement obtained from a series of pull out tests in order to gain a better understanding of the interaction at the stem-cement interface.

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Zhang H, Brown L, Blunt L. A Better Understanding of the Surface Topography at the Stem-Cement Interface. In 2007 Proceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2007. Vol. PART A. 2007. p. 513-515 https://doi.org/10.1115/IJTC2007-44019