雑誌文献を検索します。書籍を検索する際には「書籍検索」を選択してください。

検索

書誌情報 詳細検索 by 医中誌

Japanese

Changes in Lumbosacral Cannal Length During Flexion and Extension : Dynamic Effect on the Elongated Spinal Cord in the Tethered Spinal Cord Satoshi Tani 1 , Shokei Yamada 2 , Takaharu Fuse 1 , Norio Nakamura 1 1Department of Neurosurgery, Jikei University School of Medicine Keyword: tethered cord syndrome , filum terminale , spinal dysraphism pp.1121-1125
Published Date 1991/12/1
DOI https://doi.org/10.11477/mf.1406900280
  • Abstract
  • Look Inside

This clinical research has been conducted to extend the understanding of pathophysiological mechanism involved in the tethered cord syndrome. In normal individuals, the filum terminale has elas-ticity similar to the rubber band. This allows ce-phald or caudad movement of the lumbosacrococ-cygeal spinal cord while the spine is flexed or extended. This is based on the observation that the lowest pair of dentate ligaments spans from the T12 and L1 junction of cord segments to the dura between the dural exit of T12 and L1 nerve roots, and the spinal cord below T12 can freely ascends on flexion and descends in the spinal cannal on exten-sion of the spine. In 50 healthy human subjects, x-ray films of the thoracolumbosacral spine were studied. Lateral films of the spine were taken in the neutral, hyperextended and hyperflexed positions. The first group included 10 individuals whose ages ranged from 27 to 42 years. The distance between the middle of the T10 vertebra and L1-L2 interspace was measured. This distance was considered to represent the length of the lumbosacral cord seg-ment (L1 through coccygeal cord segments) . The second group included 40 individuals whose ages ranged from 17 to 50 years. The distance between the L1-L2 interspace and S1-S2 interspace was measured. The distance signified the distance between the caudal end of the spinal cord and attachment of filum terminale to the sacrum.


Copyright © 1991, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

関連文献

もっと見る

文献を共有