PDF(Pubmed)
Abstract：
Despite several reports on the running of the extensor pollicis brevis (EPB) tendons, the classification of tendon insertions remains ununified due to differences in reports. This diversity in tendon patterning is attributed to the process of tendon development. In this study, we assessed the running of the EPB tendons of 44 cadaver hands fixed in ethanol/formalin in detail and examined the existing classification method. The specimens were obtained from 15 women and seven men, with an average age of 86 years. Consistent with previous reports, we observed a wide diversity in the running of the EPB tendons. Further, we found that EPB tendon insertions showed diverse variations in the proportion and running of fibers, making it difficult to classify them into independent patterns. It is speculated that the EPB tendon develops through a different process than that of the muscle body of the EPB and that the entire muscle-tendon module of the EPB is evolving. The diversity of the EPB tendons observed in this study may reflect the ongoing process of evolution. In clinical practice, a wide variation in the running of the EPB tendons should be considered.
摘要：
尽管有一些关于伸肌短肌腱（EPB）肌腱运行的报道，由于报告的差异，肌腱插入的分类仍然不统一。肌腱图案的这种多样性归因于肌腱发育的过程。在这项研究中,我们详细评估了44只固定在乙醇/福尔马林中的尸体手的EPB肌腱的运行情况，并检查了现有的分类方法。这些标本来自15名女性和7名男性，平均年龄86岁。与以前的报告一致，我们观察到EPB肌腱运行的多样性。Further,我们发现EPB肌腱插入在纤维的比例和运行方面表现出不同的变化，很难将它们分类为独立的模式。据推测，EPB肌腱的发育过程与EPB的肌肉体不同，并且EPB的整个肌肉肌腱模块正在发展。在这项研究中观察到的EPB肌腱的多样性可能反映了正在进行的进化过程。在临床实践中,应考虑EPB肌腱运行的差异很大。
