Kyung Dong-Soo, Lee Jae-Ho, Choi In-Jang, Kim Dae-Kwang
Medical Course, Keimyung University School of Medicine, Daegu, Korea.
Anat Cell Biol. 2012 Mar;45(1):53-6. doi: 10.5115/acb.2012.45.1.53. Epub 2012 Mar 31.
The palmaris longus (PL) is a slender, spindle-shaped weak flexor of the wrist. Congenital absence of the PL is estimated to occur in 15% among individuals worldwide. However, the frequency of its absence varies considerably among different population groups and with different detection techniques. In the present study, the presence of the PL tendon was examined in a Korean population (n=269) using three clinical tests, namely the Traditional Test, Mishra's Test II, and the Gangata Test. We classified subjects into six types based on whether inspection or palpation was required to determine the presence of the PL and flexor carpi radialis. The most reliable test was determined using Kendall's coefficient of concordance. Our results showed that the PL tendon was absent in 4.1% of the subjects in our study, and bilateral and unilateral absences were 2.2% and 1.8%, respectively. Statistical analysis revealed that these tests had similar reliability for assessing the PL tendon, and the Traditional Test showed the highest effectiveness, at 93%. Therefore the Traditional Test was found to be the most effective for revealing the PL in this Korean population.
掌长肌（PL）是一种细长的、纺锤形的腕部薄弱屈肌。据估计，全球范围内15%的人存在先天性掌长肌缺失。然而，其缺失频率在不同人群组以及采用不同检测技术时差异很大。在本研究中，我们对269名韩国人群使用三种临床测试，即传统测试、米什拉测试II和甘加塔测试，来检查掌长肌腱的存在情况。我们根据确定掌长肌和桡侧腕屈肌是否存在时是否需要检查或触诊，将受试者分为六种类型。使用肯德尔和谐系数确定最可靠的测试。我们的结果显示，在我们的研究中，4.1%的受试者掌长肌腱缺失，双侧和单侧缺失分别为2.2%和1.8%。统计分析表明，这些测试在评估掌长肌腱方面具有相似的可靠性，传统测试的有效性最高，为93%。因此，发现传统测试在该韩国人群中揭示掌长肌最为有效。
