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) |
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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 |
ASJC Scopus subject areas
- Engineering(all)