Abstract
We examined three new interfaces for porous ingrowth hip surface replacements using linear and nonlinear contact finite element analysis. The results indicate that a flatter interface than is usually used, similar to the epiphyseal line, may improve surface replacement longevity. In addition we find that linear analysis of the pressure at the prosthesis-bone interface gives significantly different results than does an analysis which models the interface as a slip surface. This means that the stress patterns at the interface immediately post-implantation, before bony ingrowth occurs, can not be accurately determined from a simple linear analysis.
| Original language | English (US) |
|---|---|
| Title of host publication | Unknown Host Publication Title |
| Editors | Cliff Brubaker |
| Place of Publication | Washington, DC, USA |
| Publisher | Rehabilitation Engineering Soc of North America |
| Pages | 293-295 |
| Number of pages | 3 |
| State | Published - 1985 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
STRESS ANALYSIS OF POROUS INGROWTH HIP SURFACE REPLACEMENTS. / Fyhrie, David P; Carter, D. R.
Unknown Host Publication Title. ed. / Cliff Brubaker. Washington, DC, USA : Rehabilitation Engineering Soc of North America, 1985. p. 293-295.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - STRESS ANALYSIS OF POROUS INGROWTH HIP SURFACE REPLACEMENTS.
AU - Fyhrie, David P
AU - Carter, D. R.
PY - 1985
Y1 - 1985
N2 - We examined three new interfaces for porous ingrowth hip surface replacements using linear and nonlinear contact finite element analysis. The results indicate that a flatter interface than is usually used, similar to the epiphyseal line, may improve surface replacement longevity. In addition we find that linear analysis of the pressure at the prosthesis-bone interface gives significantly different results than does an analysis which models the interface as a slip surface. This means that the stress patterns at the interface immediately post-implantation, before bony ingrowth occurs, can not be accurately determined from a simple linear analysis.
AB - We examined three new interfaces for porous ingrowth hip surface replacements using linear and nonlinear contact finite element analysis. The results indicate that a flatter interface than is usually used, similar to the epiphyseal line, may improve surface replacement longevity. In addition we find that linear analysis of the pressure at the prosthesis-bone interface gives significantly different results than does an analysis which models the interface as a slip surface. This means that the stress patterns at the interface immediately post-implantation, before bony ingrowth occurs, can not be accurately determined from a simple linear analysis.
UR - http://www.scopus.com/inward/record.url?scp=0022303089&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0022303089&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0022303089
SP - 293
EP - 295
BT - Unknown Host Publication Title
A2 - Brubaker, Cliff
PB - Rehabilitation Engineering Soc of North America
CY - Washington, DC, USA
ER -