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Topographic relationship between the medial intermuscular septum and the ulnar nerve in the upper arm

Authors
 Hyung-Sun Won ; Seung-Ho Han ; So Young Lim ; Seung Min Kim ; In-Hyuk Chung ; Chang-Seok Oh 
Citation
 Journal of Neurosurgery, Vol.114(6) : 1534~1537, 2011 
Journal Title
 Journal of Neurosurgery 
ISSN
 0022-3085 
Issue Date
2011
Abstract
OBJECT: The authors have observed that the ulnar nerve (UN) passes through the medial intermuscular septum (MIMS) into the posterior compartment of the upper arm in more complicated patterns than those described in anatomy textbooks. Given that these unreported patterns might be related to the idiopathic UN entrapment at the midarm, this study focused on the relationship between the MIMS and the UN. METHODS: One hundred upper arms were dissected. The site at which the UN pierced the MIMS was analyzed and measured from the medial epicondyle. RESULTS: The relationship between the MIMS and the UN could be classified into 3 types according to whether the nerve pierced the MIMS and whether it ran through a fibrous tunnel within the septum. The UN pierced the MIMS in the middle third of the upper arm. CONCLUSIONS: The results of this study are expected to further understanding of the relationship between the MIMS and the UN. They could also be helpful for surgeons aiming to relieve UN entrapment at the midarm, especially in nerve lesions of idiopathic origin.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/94004
DOI
10.3171/2011.1.JNS10210.
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Anatomy
1. 연구논문 > 1. College of Medicine > Dept. of Neurology
Yonsei Authors
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Link
 http://thejns.org/doi/full/10.3171/2011.1.JNS10210
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