胫前韧带纤维束数量差异对踝关节制动功能的影响：一项模拟研究。
The effect of differences in the number of fiber bundles of the anterior tibial ligament on ankle braking function: a simulation study.
作者信息
Edama Mutsuaki, Takabayashi Tomoya, Inai Takuma, Kikumoto Takanori, Ito Wataru, Nakamura Emi, Hirabayashi Ryo, Ikezu Masahiro, Kaneko Fumiya, Kageyama Ikuo
机构信息
Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Shimami-cho 1398, kita-ku, Niigata, 950-3198, Japan.
Department of Anatomy, School of Life Dentistry at Niigata, Nippon Dental University, Niigata, Japan.
出版信息
Surg Radiol Anat. 2019 Jan;41(1):69-73. doi: 10.1007/s00276-018-2133-y. Epub 2018 Nov 7.
PURPOSE
The aim was to clarify the effect of differences in the number of fiber bundles of the anterior tibial ligament (ATFL) on ankle braking function.
METHODS
The study sample included 81Japanese cadavers. ATFLs were categorized as: Type I with one fiber bundle; Type II with two fiber bundles that were completely separated; and Type III with three fiber bundles. Three-dimensional reconstructions of a single specimen from each category were then created. These were used to simulate and calculate ATFL strain during dorsiflexion (20°) and plantarflexion (30°) on the talocrural joint axis and inversion (20°) on the subtalar joint axis.
RESULTS
Almost all types of superior fiber lines were stretched with dorsiflexion and plantarflexion. Regardless of Type, the inferior fiber line was shortened with plantarflexion and stretched with dorsiflexion. The inferior fiber bundle of Type III was shortened only at plantarflexion 30° and inversion 20°, but in all others it was stretched.
CONCLUSIONS
The results suggest that Type III was weaker than Type I and Type II in terms of ankle plantarflexion and inversion braking function.
目的
本研究旨在阐明胫前韧带（ATFL）纤维束数量差异对踝关节制动功能的影响。
方法
研究样本包括81具日本尸体。ATFL被分为：I型，有一束纤维；II型，有两束完全分开的纤维；III型，有三束纤维。然后对每一类别的单个标本进行三维重建。这些重建模型用于模拟和计算在距小腿关节轴背屈（20°）和跖屈（30°）以及距下关节轴内翻（20°）时ATFL的应变。
结果
几乎所有类型的上纤维束在背屈和跖屈时都会被拉伸。无论哪种类型，下纤维束在跖屈时缩短，在背屈时拉伸。III型的下纤维束仅在跖屈30°和内翻20°时缩短，但在其他所有情况下均被拉伸。
结论
结果表明，在踝关节跖屈和内翻制动功能方面，III型比I型和II型更弱。
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