W7.2.3 - Toward Digital Twins in Orthopedic Implants: Finite Element Analysis of Malalignment Effects in Instrumented Tibial Trays
- Event
- EUROSENSORS XXXVII
2025-09-07 - 2025-09-10
Wroclaw - Band
- Lectures
- Chapter
- W7.2 - Theory, Design and Testing
- Author(s)
- L. Merzak, C. Ott, E. Saoutieff, P. Gasnier, V. Elhorga, S. Boisseau - CEA Leti, Grenoble (France)
- Pages
- 176 - 177
- DOI
- 10.5162/EUROSENSORS2025/W7.2.3
- ISBN
- 978-3-910600-07-2
- Price
- free
Abstract
This study investigates the impact of knee prosthesis malalignment on the strain distribution in the tibial tray. A 3D finite element model was developed to simulate all prosthetic components. Simulations showed that malalignment leads to detectable strain patterns. These findings highlight the potential to detect malalignment using a sensor-enhanced tray previously developed, which includes an integrated sensor based on a “tray–pillar–membrane” structure. These preliminary results will serve as a foundation for the implementation of a digital twin framework dedicated to alignment assessment of knee implants.