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Comparative Anatomy of Spinal Anterior and Posterior Longitudinal Ligament

山口医学 Volume 46 Issue 1 Page 15-22
published_at 1997-02
Title
頚椎後縦靭帯の比較解剖学的検討
Comparative Anatomy of Spinal Anterior and Posterior Longitudinal Ligament
Creators Nibu Kimio
Source Identifiers
Creator Keywords
比較解剖 脊椎靭帯 バイオメカ二クス 後縦靭帯骨化症
Ossifcation of of posterior longitudinal ligament (OPLL) in cervical spine leads patients to cervical myelopathy. The etiology of this disorder is not clear yet. There is no animal model which simulate human OPLL in pathophisiology. Anatomical and histological observation was performed using Japanese monkey, rabbit, lizard, fowl, frog, and fish. In histological examination elastic and collagenous fibers are observed with EVG and Azan staining. Biomechanical strength of anterior and posterior longitudinal ligament of quad-pedal mammal (rabbit) was measured with TENSILON. Spinal longitudinal ligament was not found in bony fish(ostechthyan) , however in higher class than amphibian spinal longitudinal ligament existed in spinal canal. Spinal longitudinal ligament of avis, reptiles, and amphibian consisted of single layer and had broad continuity to dura mater. On the other hand those of mammalia consisted of deep and superficial layers and had attachment to dura at only peripheral area of disc level. In mammalia, monkey had very similar morphological feature to that of human. There was same feature as for mechanical balance of anterior and posterior longitudinal ligament between human and quad-pedal rabbit. Therefore there was little effect of spinal posture and alignment on development of spinal longitudinal ligament. It seems that local mechanical factor is not main cause of ossification of posterior longitudinal ligament.
Subjects
医学 ( Other)
Languages jpn
Resource Type journal article
Publishers 山口大学医学会
Date Issued 1997-02
File Version Not Applicable (or Unknown)
Access Rights metadata only access
Relations
[ISSN]0513-1731
[NCID]AN00243156
Schools 医学部