<div class="csl-bib-body">
<div class="csl-entry">Key, K., Meinke, C., & Elgeti, S. (2025, September 16). <i>Reducing Stress Shielding of Implants using Lattice Structures</i> [Conference Presentation]. The Thirteenth International Conference on Isogeometric Analysis (IGA 2025), Eindhoven, Netherlands (the). http://hdl.handle.net/20.500.12708/220766</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/220766
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dc.description.abstract
An increasing number of patients suffer from hip joint degeneration. One possible treatment is hip replacement surgery, during which an artificial ball-and-socket joint substitutes the damaged natural one. In detail, the ball-shaped head of the femoral bone is removed and replaced by an implant. One potential problem associated with implants that are too strong is stress shielding, i.e., the reduction of stresses that act on the remaining natural bone. The reduced stresses can result in bone resorption, which, in turn, can cause implant loosening.
To counteract stress shielding, implant designs that are inspired by porous bone are proposed [1]. In particular, the designs comprise lattice structures, which can additionally facilitate bone in-growth and can be produced by additive manufacturing. Numerical analysis of such implants comprising lattices can predict their performances and eventually even enable their numerical design. Both require geometric models of the implants, which, following the approach of tiling [2], can be generated by composing splines. The generated models are not only suitable for a direct isogeometric analysis, but the approach also enables local optimization of the lattice structures [3]. The presentation will apply the workflow to an exemplary scanned bone geometry.
[1] P. Müller, A. Synek, T. Stauß, C. Steinnagel, T. Ehlers, P.C. Gembarski, D. Pahr, R. Lachmayer, Development of a density-based topology optimization of homogenized lattice structures for individualized hip endoprostheses and validation using micro-FE. Scientific Reports (2024) 14:5719.
[2] G. Elber, Precise construction of micro-structures and porous geometry via functional composition. Mathematical Methods for Curves and Surfaces (2017) 108–125.
[3] J. Zwar, G. Elber and S. Elgeti, Shape optimization for temperature regulation in extrusion dies using microstructures. Journal of Mechanical Design (2023) 145(1):012004.
en
dc.language.iso
en
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dc.subject
Lattice structures
en
dc.subject
Tiling
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dc.subject
isogeometric analysis
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dc.subject
Numerical design
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dc.subject
Stress shielding
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dc.title
Reducing Stress Shielding of Implants using Lattice Structures
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.type.category
Conference Presentation
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tuw.researchTopic.id
C4
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tuw.researchTopic.id
C6
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tuw.researchTopic.id
C3
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tuw.researchTopic.name
Mathematical and Algorithmic Foundations
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tuw.researchTopic.name
Modeling and Simulation
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tuw.researchTopic.name
Computational System Design
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tuw.researchTopic.value
60
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tuw.researchTopic.value
10
-
tuw.researchTopic.value
30
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tuw.publication.orgunit
E317-01-1 - Forschungsgruppe Numerische Analyse- und Designmethoden
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tuw.author.orcid
0009-0008-5263-5776
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tuw.author.orcid
0000-0001-9138-9020
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tuw.author.orcid
0000-0002-4474-1666
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tuw.event.name
The Thirteenth International Conference on Isogeometric Analysis (IGA 2025)
en
tuw.event.startdate
14-09-2025
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tuw.event.enddate
17-09-2025
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Eindhoven
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tuw.event.country
NL
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tuw.event.presenter
Key, Konstantin
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wb.sciencebranch
Maschinenbau
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wb.sciencebranch
Sonstige Humanmedizin, Gesundheitswissenschaften
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wb.sciencebranch.oefos
2030
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wb.sciencebranch.oefos
3059
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wb.sciencebranch.value
90
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wb.sciencebranch.value
10
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item.openairetype
conference paper not in proceedings
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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item.cerifentitytype
Publications
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item.languageiso639-1
en
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item.grantfulltext
none
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item.fulltext
no Fulltext
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crisitem.author.dept
E317-01-1 - Forschungsgruppe Numerische Analyse- und Designmethoden
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crisitem.author.dept
E317-01 - Forschungsbereich Leichtbau
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crisitem.author.orcid
0009-0008-5263-5776
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crisitem.author.orcid
0000-0001-9138-9020
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crisitem.author.orcid
0000-0002-4474-1666
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crisitem.author.parentorg
E317-01 - Forschungsbereich Leichtbau
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crisitem.author.parentorg
E317 - Institut für Leichtbau und Struktur-Biomechanik
