Rogers M R, Bergfield T G, Aulicino P L
Department of Orthopaedic Surgery, Eastern Virginia Graduate School of Medicine, Norfolk.
J Hand Surg Am. 1991 Mar;16(2):269-71. doi: 10.1016/s0363-5023(10)80108-x.
A motor neural loop of the deep branch of the ulnar nerve was encountered on three occasions during neurolysis of the ulnar nerve through Guyon's canal. An anatomic study of the course of the deep motor branch of the ulnar nerve at the wrist was done to define the incidence of this neural loop. Seventy-seven cadaveric upper extremities were examined and seven (9%) cases of a neural loop were encountered. One of these cases was bilateral. This variation should be considered when there is an atypical clinical presentation after penetrating injuries or compression neuropathy of the ulnar nerve at the wrist. In addition, care must be taken not to injure this branch during decompression of Guyon's canal or excision of an ununited of the hook of the hamate.
在通过Guyon管对尺神经进行神经松解术的过程中，有三次遇到尺神经深支的运动神经环。对尺神经深运动支在腕部的走行进行了解剖学研究，以确定这种神经环的发生率。检查了77具尸体的上肢，发现7例（9%）存在神经环。其中1例为双侧。当腕部尺神经穿透伤或压迫性神经病变后出现非典型临床表现时，应考虑这种变异。此外，在Guyon管减压或切除钩骨钩不连时，必须小心不要损伤该分支。
