Department of Normal and Clinical Anatomy, Interfaculty Chair of Anatomy and Histology, Medical University of Lodz, Łódź, Poland.
Polish Mother's Memorial Hospital Research Institute, Lodz, Poland.
Clin Anat. 2020 Nov;33(8):1235-1239. doi: 10.1002/ca.23572. Epub 2020 Feb 6.
The extensor hallucis longus (EHL) is located in the anterior compartment of the leg, between the tibialis anterior muscle and extensor digitorum longus. The EHL is characterized by a number of morphological variations, concerning mainly the accessory bands and their insertion. The aim of our research was to evaluate the effectiveness of ultrasound in determining the anatomical variations of the EHL.
The morphology of the EHL was evaluated by ultrasound (high-frequency linear probe of Samsung RS80 apparatus) in 50 healthy volunteers. The types of EHL morphology were determined according to a threefold classification.
Only two types of the threefold anatomical classification were observed: Type I in 76 limbs (76%) and Type IIa in 24 limbs (24%). The accessory bands of the EHL were found in 24% of cases, all of which demonstrated a course that was located medially in relation to the main tendon.
Ultrasound allows for visualization of the EHL; however, the potential recognition of morphological variance is limited.
I - Clinical Research.
拇长伸肌（EHL）位于小腿前间隔，位于胫骨前肌和趾长伸肌之间。EHL 的特征在于存在多种形态变异，主要涉及副韧带及其附着处。我们研究的目的是评估超声在确定 EHL 解剖变异方面的有效性。
我们使用超声（三星 RS80 仪器的高频线性探头）对 50 名健康志愿者的 EHL 形态进行评估。根据三重分类法确定 EHL 形态的类型。
仅观察到三重解剖分类中的两种类型：76 条肢体（76%）为 I 型，24 条肢体（24%）为 IIa 型。在 24%的情况下发现了 EHL 的副韧带，所有副韧带的走行均位于主肌腱的内侧。
超声可用于可视化 EHL，但对形态变异的潜在识别能力有限。
I-临床研究。
