Pathomorphological changes of rat’s tail intervertebral disks and vertebrae bodies at asymmetric static compression-distension in the experiment

Constant asymmetric static compression-distention (ASCD) of tail segments of the spine was performed in rats by tail stump sewing to its base in the experiment. In period of 1–3 months using histological method it was fixed that ASCD led to pathological changes in intervertebral disks and...

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Main Authors: Valeriy Grigorovsky, Mykhaylo Khyzhnyak, Irina Vasileva, Irina Shuba, Yuriy Gafiychuk
Format: Article
Language:English
Published: Romodanov Neurosurgery Institute 2011-09-01
Series:Ukrainian Neurosurgical Journal
Online Access:https://theunj.org/article/view/57798
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author Valeriy Grigorovsky
Mykhaylo Khyzhnyak
Irina Vasileva
Irina Shuba
Yuriy Gafiychuk
author_facet Valeriy Grigorovsky
Mykhaylo Khyzhnyak
Irina Vasileva
Irina Shuba
Yuriy Gafiychuk
author_sort Valeriy Grigorovsky
collection DOAJ
description Constant asymmetric static compression-distention (ASCD) of tail segments of the spine was performed in rats by tail stump sewing to its base in the experiment. In period of 1–3 months using histological method it was fixed that ASCD led to pathological changes in intervertebral disks and vertebrae bodies, mainly caused by ischemia and dystrophy. The most constant histologicaly expressed component of intervertebral disks’ damage — is macrofocal cell necrosis in collagen plate of the fibrous ring on the side of compression, accompanied by crumple, significant fiber prevalence and cracking of the plates with perifocal zone of chondrocyte proliferation, but these changed didn’t result in substitution of focal damage in terms of observation. Zones of notochondral cells necrosis were inconstantly noted in the structures of nucleus pulposus and closing plates of vertebrae bodies and small osteomedullary zones of necrosis — in epiphysis and epiphyseal cartilages of the vertebrae bodies. Changes of osseous epiphyses and epiphyseal cartilages height, adjoining to disk in ASCD zones of fibrous ring and also vertebrae bodies marginal ossificates were inconstant and had no correct character.
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spelling doaj.art-8794312c840448a9a702c2c2085739a32024-01-27T08:08:47ZengRomodanov Neurosurgery InstituteUkrainian Neurosurgical Journal2663-90842663-90922011-09-013596510.25305/unj.57798Pathomorphological changes of rat’s tail intervertebral disks and vertebrae bodies at asymmetric static compression-distension in the experimentValeriy Grigorovsky0Mykhaylo Khyzhnyak1Irina Vasileva2Irina Shuba3Yuriy Gafiychuk4Institute of Traumatology and Orthopedics, Kiev, UkraineRomodanov Neurosurgery Institute, Kiev, UkraineRomodanov Neurosurgery Institute, Kiev, UkraineRomodanov Neurosurgery Institute, Kiev, UkraineMilitary Medical Clinical Center of South Region, Odessa, Ukraine Constant asymmetric static compression-distention (ASCD) of tail segments of the spine was performed in rats by tail stump sewing to its base in the experiment. In period of 1–3 months using histological method it was fixed that ASCD led to pathological changes in intervertebral disks and vertebrae bodies, mainly caused by ischemia and dystrophy. The most constant histologicaly expressed component of intervertebral disks’ damage — is macrofocal cell necrosis in collagen plate of the fibrous ring on the side of compression, accompanied by crumple, significant fiber prevalence and cracking of the plates with perifocal zone of chondrocyte proliferation, but these changed didn’t result in substitution of focal damage in terms of observation. Zones of notochondral cells necrosis were inconstantly noted in the structures of nucleus pulposus and closing plates of vertebrae bodies and small osteomedullary zones of necrosis — in epiphysis and epiphyseal cartilages of the vertebrae bodies. Changes of osseous epiphyses and epiphyseal cartilages height, adjoining to disk in ASCD zones of fibrous ring and also vertebrae bodies marginal ossificates were inconstant and had no correct character.https://theunj.org/article/view/57798
spellingShingle Valeriy Grigorovsky
Mykhaylo Khyzhnyak
Irina Vasileva
Irina Shuba
Yuriy Gafiychuk
Pathomorphological changes of rat’s tail intervertebral disks and vertebrae bodies at asymmetric static compression-distension in the experiment
Ukrainian Neurosurgical Journal
title Pathomorphological changes of rat’s tail intervertebral disks and vertebrae bodies at asymmetric static compression-distension in the experiment
title_full Pathomorphological changes of rat’s tail intervertebral disks and vertebrae bodies at asymmetric static compression-distension in the experiment
title_fullStr Pathomorphological changes of rat’s tail intervertebral disks and vertebrae bodies at asymmetric static compression-distension in the experiment
title_full_unstemmed Pathomorphological changes of rat’s tail intervertebral disks and vertebrae bodies at asymmetric static compression-distension in the experiment
title_short Pathomorphological changes of rat’s tail intervertebral disks and vertebrae bodies at asymmetric static compression-distension in the experiment
title_sort pathomorphological changes of rat s tail intervertebral disks and vertebrae bodies at asymmetric static compression distension in the experiment
url https://theunj.org/article/view/57798
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