Gnanasekaran Dhivyalakshmi, Veeramani Raveendranath, Karuppusamy Aravindhan
Department of Anatomy, Indira Gandhi Medical College and Research Institute, Puducherry, India.
Department of Anatomy, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
Anat Cell Biol. 2022 Dec 31;55(4):414-422. doi: 10.5115/acb.22.052. Epub 2022 Sep 7.
The nomenclature of arteries supplying the thumb and its sources arteries differs between the studies. This makes difficulty in understanding the irrigation pattern to the thumb. The main purpose of this study was to identify the proper digital arteries supplying the thumb on its radial and ulnar side from both the palmar and dorsal aspect. Also this study aimed to trace its source and classify with proper definition with the review of blood supply to thumb. Dissection was carried out in 55 hands form 28 freshly embalmed adult human cadavers of both genders. The proper digital arteries to the thumb and its source arteries were carefully traced and defined. Thumb receives its dominant blood supply mostly from its palmar side. The ulnar palmar digital artery was seen in all the dissected hand (100.0%) whereas; the radial palmar digital artery was present in 53 hands (96.4%). The radial dorsal digital artery and ulnar dorsal digital artery were observed in only 10.0% and 7.3%. The most common source of both the palmar digital arteries to thumb was from first palmar metacarpal artery (FPMA). In majority of the hands, in addition to the radial or ulnar palmar digital arteries from the FPMA, there were also additional palmar digital arteries arising from the superficial palmar arterial system. The universal naming of the proper digital arteries to the thumb as well as its source arteries is mandatory for the proper understanding of normal as well as variant arterial anatomy of thumb.
不同研究中，供应拇指的动脉及其来源动脉的命名存在差异。这给理解拇指的血液供应模式带来了困难。本研究的主要目的是从手掌和背侧确定供应拇指桡侧和尺侧的合适指动脉。此外，本研究旨在追溯其来源，并通过回顾拇指的血液供应进行恰当定义和分类。对28具经过新鲜防腐处理的成年男女尸体的55只手进行了解剖。仔细追踪并确定了供应拇指的合适指动脉及其来源动脉。拇指的主要血液供应大多来自其手掌侧。在所有解剖的手中均可见尺侧掌侧指动脉（100.0%），而桡侧掌侧指动脉存在于53只手中（96.4%）。桡侧背侧指动脉和尺侧背侧指动脉仅分别在10.0%和7.3%的手中观察到。拇指掌侧指动脉最常见的来源是第一掌侧掌骨动脉（FPMA）。在大多数手中，除了来自FPMA的桡侧或尺侧掌侧指动脉外，还有来自掌浅动脉系统的额外掌侧指动脉。为了正确理解拇指正常以及变异的动脉解剖结构，对供应拇指的合适指动脉及其来源动脉进行统一命名是必要的。
