Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea.
College of Arts and Sciences, Boston University, Boston, MA, USA.
Surg Radiol Anat. 2022 May;44(5):659-663. doi: 10.1007/s00276-022-02944-5. Epub 2022 May 16.
The radial artery, a terminal branch of the brachial artery, typically originates at the level of the radial neck. It runs under the cover of the brachioradialis muscle, descending along the lateral side of the forearm with paired accompanying veins and a superficial branch of the radial nerve. The radial artery rewinds around the lateral aspect of the wrist, passing beneath the tendons of the abductor pollicis, extensor pollicis longus, and extensor pollicis brevis. Finally, it crossed the floor of the anatomical snuffbox.
This case report presents an anatomical variant in which the radial artery runs over the radial fossa, that is, superficially of the tendons of the hand's abductor pollicis, extensor pollicis longus, and extensor pollicis brevis muscles.
The variation described in this paper sheds light on the possible atypical topographical relationships of the radial artery with the neighboring anatomical structures in the wrist, which can be crucial during hand surgery procedures.
桡动脉是肱动脉的终末分支，通常起源于桡骨颈水平。它在肱桡肌的覆盖下运行，沿着前臂的外侧下降，与成对的伴行静脉和桡神经浅支一起。桡动脉在手腕的外侧迂回，穿过拇外展肌、拇长展肌和拇短伸肌腱下方。最后，它穿过解剖鼻烟窝的底部。
本病例报告介绍了一种解剖变异，即桡动脉走行于桡骨窝之上，即手部拇外展肌、拇长展肌和拇短伸肌腱的表面。
本文描述的变异提示桡动脉与手腕邻近解剖结构之间可能存在非典型的局部解剖关系，在手外科手术中至关重要。
