The extensor hallucis longus muscle originates from the anterior surface of the fibula and on the interosseous membrane medial to the origin of the extensor digitorum longus. Its distal attachment is typically located on the dorsal aspect of the distal phalanx of the hallux. However, EHL tendon variations have been reported in anatomical studies based on adults and fetuses. The most common variation is an additional tendinous slip in the region of the distal attachment. Additional tendinous slips can have specific names depending on where they insert. This wide range of morphological variations among the additional tendons has necessitated appropriate classification system to rank all types that could be used by clinicians. The main goal of this review is to summarize information from the available literature about the extensor hallucis longus muscle and to compare classification systems and the results of previous studies. Another aim is to create a new classification system.

拇长伸肌起源于腓骨前表面和趾长伸肌起点内侧的骨间膜。它的远端附着点通常位于拇趾远端指骨的背侧。然而，基于成人和胎儿的解剖学研究报告了 EHL 肌腱变异。最常见的变化是远端附件区域的额外肌腱滑动。额外的肌腱滑动可以根据它们插入的位置具有特定的名称。附加肌腱之间的这种广泛的形态变化需要适当的分类系统来对临床医生可以使用的所有类型进行排名。本综述的主要目的是从现有文献中总结关于拇长伸肌的信息，并比较分类系统和先前研究的结果。另一个目标是创建一个新的分类系统。