ArticleJournal of orthopaedic surgery and research2020
Finite element analysis of the initial stability of arthroscopic ankle arthrodesis with three-screw fixation: posteromedial versus posterolateral home-run screw.
Article in Journal of orthopaedic surgery and research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 11 citations in OpenAlex.
- Finite element analysis in foot and ankle arthrodesis.Bone & joint research · 2026Article
- Biomechanical effects of insole material stiffness on the human foot: a finite element analysis.Scientific reports · 2025Article
- [Arthroscopically assisted arthrodesis of the upper ankle joint].Operative Orthopadie und Traumatologie · 2025Article
- Standardized Morphological Modeling and Simulation-Based Validation of a Novel Tibiotalar Fusion Implant.Bioengineering (Basel, Switzerland) · 2025Article
- Comparative cross-sectional study of optimal screw positioning in the talus during arthroscopic ankle arthrodesis: a computed tomography-based analysis of talar bone density.BMC musculoskeletal disorders · 2025Article
- Female sex as a negative predictor of outcomes of ankle arthrodesis: a retrospective comparative monocentric study.Journal of orthopaedic surgery and research · 2024Article
- Comparison of different internal fixation models in ankle arthrodesis using 3D finite-element analysis.European journal of medical research · 2023Article
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveArthroscopic ankle arthrodesis (AAA) is a standard surgical method for the treatment of advanced traumatic ankle arthritis and has become more popular due to its advantages. To fix the tibiotalar joint, the use of three percutaneous screws is considered to have better mechanical stability than the use of two screws. However, it is sometimes difficult to insert three screws because they might block each other due to the small area of the tibiotalar joint surface and the large diameter of the screws; few articles illustrate how to insert three screws without the screws disturbing each other. The purpose of this study is to explore possible screw configurations of tripod fixation in arthroscopic ankle arthrodesis that avoid the collision of screws and yield better biomechanical performance.
methodsWe used the finite element method to examine the impact of different screw positions and orientations on the biomechanical characteristics of a three-dimensional (3D) ankle model. Maximum and average micromotion, pressure on the articular surface, and von Mises stress values of the tibia and the talus were used to evaluate the initial stability of the ankle.
resultsFive kinds of three-screw configurations were identified, and finite element analysis results suggested that configurations with the posteromedial home-run screw presented lower micromotion (maximum, 17.96 ± 7.49 μm versus 22.52 ± 12.8 μm; mean, 4.88 ± 1.89 μm versus 5.19 ± 1.92 μm) (especially configuration 3) and better screw distributions on the articular surface than those with the posterolateral home-run screw.
conclusionScrew configurations with the posteromedial home-run screw avoid collision and are more biomechanically stable than those with the posterolateral home-run screw. Thus, inserting the home-run screw through the posteromedial approach is recommended for clinical practice.
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