Department of Anatomy, College of Medicine, Chosun University, Gwangju, 61452, Republic of Korea.
Department of Neuropsychiatry, Presbyterian Medical Center, Jeonju, 54987, Republic of Korea.
Surg Radiol Anat. 2021 Jul;43(7):1045-1052. doi: 10.1007/s00276-021-02702-z. Epub 2021 Feb 12.
From the evolutionary myology, the additional tendon of the extensor hallucis longus (EHL) muscle represents the sample of a new acquisition. We aimed to determine whether the insertion pattern of the EHL muscle differs in Koreans according to demographic populations, especially between Jeju islanders and the Korean Peninsula inhabitants.
We used 69 Korean cadavers and classified the tendinous insertion of the EHL muscle as Pattern I, Pattern II, and Pattern III. The ratio of each Pattern in adult cadaveric samples was compared between demographic populations.
The proportion of Pattern I, Pattern II, and Pattern III of the EHL muscle was 30.43, 63.77, and 5.80%, respectively, further divided into 18.00 vs. 36.04%, 72.00 vs. 60.47%, 10.00 vs. 3.49% in Jeju islanders vs. peninsular Koreans. There was a considerable difference in the insertion patterns of the EHL muscle in each regional group (p = 0.032), but not in each gender, age, and body sides of lower limbs.
The findings of this study indicate that there was a higher incidence of the accessory tendon(s) of the EHL muscle in Koreans and the distributed insertion patterns of the EHL muscle was significantly different between Jeju islanders and peninsular Koreans.
从进化肌学的角度来看，伸肌长肌腱（EHL）的附加肌腱代表了一种新获得的样本。我们旨在确定 EHL 肌肉的插入模式是否因人口统计学人群而在韩国人中有所不同，尤其是济州岛居民和朝鲜半岛居民之间。
我们使用了 69 具韩国尸体，并将 EHL 肌肉的腱性插入分为 I 型、II 型和 III 型。在人口统计学样本中，比较了每种模式的比例。
EHL 肌肉的 I 型、II 型和 III 型的比例分别为 30.43%、63.77%和 5.80%，进一步分为 18.00%对 36.04%、72.00%对 60.47%、10.00%对 3.49%在济州岛居民与朝鲜半岛居民之间。EHL 肌肉的插入模式在每个区域组之间存在相当大的差异（p=0.032），但在每个性别、年龄和下肢身体侧之间没有差异。
本研究的结果表明，韩国人 EHL 肌肉的附加肌腱发生率较高，EHL 肌肉的分布插入模式在济州岛居民和朝鲜半岛居民之间存在显著差异。
