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[Realistic preclinical finite element simulation in knee and hip replacements]
Matthias Woiczinski1, Allan Maas2,3, Thomas Grupp2,3
1Klinik und Poliklinik für Orthopädie, Physikalische Medizin und Rehabilitation, Klinikum der Universität München, LMU München, Marchioninistr. 15, 81377, München, Deutschland. Matthias.Woiczinski@med.uni-muenchen.de.
Der Orthopade
|October 16, 2020
Summary
Finite element (FE) simulations aid implant development by identifying design flaws and optimizing testing. However, a lack of standardized models hinders result comparability and the accurate prediction of complex damage modes.
Area of Science:
- Biomedical Engineering
- Computational Mechanics
- Implantology
Background:
- Finite element (FE) methods accelerate implant development by identifying design issues early.
- FE simulations guide the selection of experimental testing for worst-case scenarios.
Purpose of the Study:
- To highlight the role of FE simulations in implant development and preclinical testing.
- To identify limitations in current FE simulation models for implants.
Main Methods:
- Utilizing FE simulations to analyze implant design and mechanical loads.
- Reviewing existing research on FE simulations in implantology.
Main Results:
- FE simulations demonstrate that implant positioning can influence mechanical loads and preclinical evaluation outcomes.
- Current FE simulation models lack standardization, impacting result comparability.
Conclusions:
- Standardization of FE calculation models is crucial for comparable results in implant preclinical testing.
- Advanced, dynamic models are needed to simulate complex damage modes and intraoperative kinematic changes.
- Improved FE models can inform prosthesis design and positioning to mitigate incorrect loading.
