Finite Element Modelling Simulated Meniscus Translocation and Deformation during Locomotion of the Equine Stifle.
Authors: Zellmann Pasquale, Ribitsch Iris, Handschuh Stephan, Peham Christian
Journal: Animals : an open access journal from MDPI
Summary
Researchers at the University of Veterinary Medicine Vienna created a finite element model of the equine stifle joint using high-resolution MRI data from a Shetland pony, segmenting the femur, tibia, cartilages, menisci and associated ligaments to simulate joint behaviour across approximately 30° of motion. The computational model revealed that the lateral meniscus experiences substantially higher pressure loading than the medial meniscus during locomotion, correlating with greater translocation and deformation on the lateral side—findings that align with known clinical patterns of meniscal pathology in horses. By integrating tissue material properties from human and bovine studies, this approach establishes a foundation for predicting pressure concentrations within the stifle and identifying anatomical segments vulnerable to degenerative change. Such biomechanical modelling has considerable potential to advance understanding of how osteoarthritis progresses in the stifle, predict outcomes of surgical interventions (such as meniscectomy or cartilage treatments), and inform implant design before clinical application. For equine practitioners, this work suggests that therapeutic strategies should account for the disproportionate biomechanical burden on the lateral meniscus, potentially guiding both preventative management and post-injury rehabilitation protocols.
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Practical Takeaways
- •Lateral meniscal injuries may be more common in horses due to higher biomechanical loading; this model could help predict which horses are at risk
- •Understanding meniscal mechanics through FEM could guide treatment decisions and improve outcomes for stifle lameness cases
- •Validated computational models offer non-invasive method to test surgical approaches and implant designs before clinical application
Key Findings
- •Lateral meniscus experienced higher pressure loads than medial meniscus during simulated locomotion across ~30° range of motion
- •Lateral meniscus demonstrated greater translocation and deformation compared to medial meniscus in finite element model
- •FEM model based on equine stifle anatomy successfully simulated meniscal mechanics and identified pressure distribution patterns
- •Computational model provides framework for identifying injury-predisposed segments and predicting progression of stifle joint disorders