Edama Mutsuaki, Takabayashi Tomoya, Inai Takuma, Kikumoto Takanori, Ito Wataru, Nakamura Emi, Hirabayashi Ryo, Ikezu Masahiro, Kaneko Fumiya, Kageyama Ikuo
Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata, 950-3198, Japan.
Department of Anatomy, School of Life Dentistry at Niigata, Nippon Dental University, Niigata, Japan.
Surg Radiol Anat. 2019 Jun;41(6):675-679. doi: 10.1007/s00276-019-02239-2. Epub 2019 Apr 16.
The aim was to clarify the relationships between differences in the number of fiber bundles of the anterior talofibular ligament (ATFL) and differences in the angle of the calcaneofibular ligament (CFL) with respect to the long axis of the fibula and their effects on ankle braking function.
The study sample included 110 Japanese cadavers. ATFLs were categorized as: Type I with one fiber bundle; Type II with two fiber bundles with incomplete separation and complete separation; and Type III with three fiber bundles. The CFLs were categorized according to the angles of the CFLs with respect to the long axis of the fibula and the number of fiber bundles. Six categories were established: CFL10° (angle of the CFL with respect to the long axis of the fibula from 10° to 19°); CFL20° (range 20°-29°); CFL30° (range 30°-39°); CFL40° (range 40°-49°); CFL50° (range 50°-59°); and CFL2 (CFLs with two crossing fiber bundles).
ATFL was Type I in 34 legs (31%), Type II in 66 legs (60%), and Type III in 10 legs (9%). Five CFL categories were identified: CFL10° in 4 feet (3.7%); CFL20° in 23 feet (20.9%); CFL30° in 34 feet (30.9%); CFL40° in 33 feet (30%); CFL50° in 15 feet (13.6%); and CFL2 in one foot (0.9%). Type III contained mainly CFL40° and CFL50° (7 of 10 feet).
ATFL and CFL appear to cooperate in the ankle joint braking function.
旨在阐明距腓前韧带（ATFL）纤维束数量差异与跟腓韧带（CFL）相对于腓骨长轴角度差异之间的关系及其对踝关节制动功能的影响。
研究样本包括110具日本尸体。ATFL分为：I型为一束纤维；II型为两束纤维，有不完全分离和完全分离两种情况；III型为三束纤维。CFL根据其相对于腓骨长轴的角度和纤维束数量进行分类。共分为六类：CFL10°（CFL相对于腓骨长轴的角度为10°至19°）；CFL20°（范围为20° - 29°）；CFL30°（范围为30° - 39°）；CFL40°（范围为40° - 49°）；CFL50°（范围为50° - 59°）；以及CFL2（有两束交叉纤维的CFL）。
34条腿（31%）的ATFL为I型，66条腿（60%）为II型，10条腿（9%）为III型。确定了五种CFL类别：4只脚（3.7%）为CFL10°；23只脚（20.9%）为CFL20°；34只脚（30.9%）为CFL30°；33只脚（30%）为CFL40°；15只脚（13.6%）为CFL50°；1只脚（0.9%）为CFL2。III型主要包含CFL40°和CFL50°（10只脚中的7只）。
ATFL和CFL在踝关节制动功能中似乎协同发挥作用。
