Anatomical variations of the superficial branch of the radial nerve and the dorsal branch of the ulnar nerve: A detailed electrophysiological study
Anatomical variations of the superficial branch of the radial nerve and the dorsal branch of the ulnar nerve: A detailed electrophysiological study
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DOI：
10.1002/mus.27221
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发表时间：
2021-03-18
期刊：
影响因子：
3.4
通讯作者：
Sunada, Yoshihide
中科院分区：
文献类型：
--
作者：
Hemmi, Shoji;Kurokawa, Katsumi;Sunada, Yoshihide
引言在这项研究中，我们评估的解剖变异的浅分支的桡神经（SBRN）和背分支的尺神经（DBUN）electrophysiologic.Methods逆向神经传导研究（NCS）的SBRN和DBUN进行健康人。为了确定从SBRN和DBUN的远端分支的个人反应，感觉神经动作电位的每个手指（外侧/内侧）recorded.Results NCS进行了50手的27名健康对照组。所有病例的拇指和食指均由SBRN供应。第3指外侧和内侧分别有94.0%和74.0%的病例由SBRN供血，而第4指外侧和内侧分别只有10.0%和2.0%的病例由SBRN供血。第5指和第4指的内侧总是由DBUN供应。98.0%的病例第四指外侧由DBUN供血，而40.0%和70.0%的病例第三指外侧和内侧由DBUN供血。SBRN和DBUN的双重神经支配在第三指的外侧和内侧分别占34.0%和46.0%，而在第四指的外侧和内侧分别占8.0%和2.0%。
Introduction In this study we evaluated anatomic variations of the superficial branch of the radial nerve (SBRN) and the dorsal branch of the ulnar nerve (DBUN) electrophysiologically.Methods Antidromic nerve conduction studies (NCS) of the SBRN and DBUN were performed on healthy individuals. To identify individual responses from the distal branches of the SBRN and DBUN, sensory nerve action potentials of each finger (lateral side/medial side) were recorded.Results NCS were performed in 50 hands of 27 healthy control subjects. The thumb and the index finger were supplied by the SBRN in all cases. The lateral and medial sides of the third finger were supplied by the SBRN in 94.0% and 74.0% of the cases, but the lateral and medial sides of the fourth finger were supplied by the SBRN in only 10.0% and 2.0% of cases. The fifth finger and the medial side of the fourth finger were always supplied by the DBUN. The lateral side of the fourth finger was supplied by the DBUN in 98.0% of cases, but the lateral and medial sides of the third finger were supplied by the DBUN in 40.0% and 70.0% of cases. Dual innervation by the SBRN and DBUN was found in 34.0% and 46.0% of the lateral and medial sides of the third finger, but in only 8.0% and 2.0% of the lateral and medial sides of the fourth finger.Discussion There are considerable anatomic variations of the SBRN and DBUN in healthy individuals.