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Research article
Taiqiang Yan
Peking University People's Hospital
Corresponding Author
ORCiD: https://orcid.org/0000-0003-3982-1052
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background: There are different surgical methods for primary malignant tumor located at distal tibia. Previous studies have reported that double-strut fibula ankle arthrodesis is an alternative reconstruction. The purpose of this study was to investigate the biomechanical effect of double-strut fibula ankle arthrodesis by finite element analysis (FEA).
Methods: Computer aided design software was used to established three-dimension models. Three different models were construct: normal tibia-fibula-talus complex (Model A), double-strut fibula ankle arthrodesis (Model B), and reconstruction by ipsilateral fibula (Model C). We used FEA to evaluate and compared the biomechanical characteristics of these constructs. Simulated loads of 600 N was applied to the tibial plateau to simulate balanced single-foot standing. Output results representing the model von Mises stress, and displacement of the components were analyzed.
Results: Construct stiffness was significantly increased when the internal plate fixation was used. For axial loads, Model B (963.79 N/mm) was significantly stiffer than the construct of Model A (430.76 N/mm), and Model C (616.06 N/mm), indication Model B was more stable. Maximum stress on the fibular graft occurred on the proximal end. There were no significant differences in von Mises stress and stress distribution of fibular graft in Model B (22.73 MPa) and Model C (23.69 MPa). In Model B, the ipsilateral fibula in Model B has a higher value of stress (12.07 MPa) than that in Model A (0.67 MPa), indicating the ipsilateral fibula shared load after fusion with talus. For axial load, displacement at the fibular graft in Model B (0.37 mm) was significantly less than that in Model C (0.82 mm).
Conclusions: Our computational findings suggest that double-strut fibula ankle arthrodesis is an acceptable construct for distal tibia defect and the ipsilateral fibula shared load after fusion with talus.
Keywords
Bone tumor, Distal tibia, Fibular graft; Finite element analysis
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View the published article at Journal of Orthopaedic Surgery and Research.
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A new preprint design is coming!
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See the published version of this preprint at Journal of Orthopaedic Surgery and Research.
This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research article
Taiqiang Yan
Peking University People's Hospital
Corresponding Author
ORCiD: https://orcid.org/0000-0003-3982-1052
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Published
View the published article at Journal of Orthopaedic Surgery and Research.
Version 1
Posted 23 Jan, 2021
No community comments so far
Review #1 received
Received 23 Jan, 2021
Editor assigned
On 18 Jan, 2021
Reviewers invited
Invitations sent on 18 Jan, 2021
Reviewer #1 agreed
On 18 Jan, 2021
Submission checks complete
On 18 Jan, 2021
Editor invited
On 18 Jan, 2021
First submitted
On 17 Jan, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at Journal of Orthopaedic Surgery and Research.
Background: There are different surgical methods for primary malignant tumor located at distal tibia. Previous studies have reported that double-strut fibula ankle arthrodesis is an alternative reconstruction. The purpose of this study was to investigate the biomechanical effect of double-strut fibula ankle arthrodesis by finite element analysis (FEA).
Methods: Computer aided design software was used to established three-dimension models. Three different models were construct: normal tibia-fibula-talus complex (Model A), double-strut fibula ankle arthrodesis (Model B), and reconstruction by ipsilateral fibula (Model C). We used FEA to evaluate and compared the biomechanical characteristics of these constructs. Simulated loads of 600 N was applied to the tibial plateau to simulate balanced single-foot standing. Output results representing the model von Mises stress, and displacement of the components were analyzed.
Results: Construct stiffness was significantly increased when the internal plate fixation was used. For axial loads, Model B (963.79 N/mm) was significantly stiffer than the construct of Model A (430.76 N/mm), and Model C (616.06 N/mm), indication Model B was more stable. Maximum stress on the fibular graft occurred on the proximal end. There were no significant differences in von Mises stress and stress distribution of fibular graft in Model B (22.73 MPa) and Model C (23.69 MPa). In Model B, the ipsilateral fibula in Model B has a higher value of stress (12.07 MPa) than that in Model A (0.67 MPa), indicating the ipsilateral fibula shared load after fusion with talus. For axial load, displacement at the fibular graft in Model B (0.37 mm) was significantly less than that in Model C (0.82 mm).
Conclusions: Our computational findings suggest that double-strut fibula ankle arthrodesis is an acceptable construct for distal tibia defect and the ipsilateral fibula shared load after fusion with talus.
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