Analysis of 3-dimensional finite element after reconstruction of impaired ankle deltoid ligament

Ji,Yunhan; Tang,Xianzhong; Li,Yifan; Xu,Wei; Qiu,Wenjun

doi:10.3892/etm.2016.3894

December-2016 Volume 12 Issue 6

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December-2016 Volume 12 Issue 6

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Article Open Access

Analysis of 3-dimensional finite element after reconstruction of impaired ankle deltoid ligament

Authors:
- Yunhan Ji
- Xianzhong Tang
- Yifan Li
- Wei Xu
- Wenjun Qiu
View Affiliations / Copyright

Affiliations: Department of Orthopedics, Tongren Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200336, P.R. China

Copyright: © Ji et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
Pages: 3913-3916
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Published online on: November 11, 2016

https://doi.org/10.3892/etm.2016.3894
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Abstract

We compared four repair techniques for impaired ankle ligament deltoideum, namely Wiltberger, Deland, Kitaoka and Hintermann using a 3-dimensional finite element. We built an ankle ligament deltoideum model, including six pieces of bone structures, gristles and main ligaments around the ankle. After testing the model, we built an impaired ligament deltoideum model plus four reconstruction models. Subsequently, different levels of force on ankles with different flexion were imposed and ankle biomechanics were compared. In the course of bending, from plantar flexion 20˚ to back flexion 20˚, the extortion of talus decreased while the eversion increased. Four reconstruction models failed to bring back the impaired ankle to normal, with an obvious increase of extortion and eversion. The Kitaoka technique was useful to reduce the extortion angle in a consequential manner. Compared with the other three techniques, the Kitaoka technique produced better results for extortion angle and the difference was statistically significant. However, in case of eversion, there was no significant difference among the four techniques (P>0.05). Lateral ligament's stress in all the four models was different from the normal one. When the ankle was imposed with extortion moment of force, stress of anterior talofibular ligament with the Kitaoka reconstruction method was close to that of the complete deltoid ligament. When ankle was imposed with eversion moment of force, stress of anterior talofibular ligament with Kitaoka and Deland reconstruction methods were close to that of the complete deltoid ligament. We concluded that Kitaoka and Deland tendon reconstruction technique could recover impaired ankle deltoid ligament and re-established its normal biomechanics characteristics.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Analysis of 3-dimensional finite element after reconstruction of impaired ankle deltoid ligament

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