Evaluation of Lumbar Vertebral Body and Disc: A Stereological Morphometric Study

Anterior access to the L1-L5 vertebrae and disc spaces can be technically challenging, frequently requiring the use of an approach to a surgeon for an adequate exposure. The technique is used for lesion excision, corpectomy, vertebral body reconstruction with cages, realignment, and/or plating or sc...

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Autores principales:	Gocmen-Mas,Nuket, Karabekir,Hamit, Ertekin,Tolga, Edizer,Mete, Canan,Yazici, Duyar,Izzet
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2010
Materias:	Lumbar vertebra Body Morphometry Volumetry Stereology Anterior access
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000300028
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spelling	oai:scielo:S0717-950220100003000282010-10-25Evaluation of Lumbar Vertebral Body and Disc: A Stereological Morphometric StudyGocmen-Mas,NuketKarabekir,HamitErtekin,TolgaEdizer,MeteCanan,YaziciDuyar,Izzet Lumbar vertebra Body Morphometry Volumetry Stereology Anterior access Anterior access to the L1-L5 vertebrae and disc spaces can be technically challenging, frequently requiring the use of an approach to a surgeon for an adequate exposure. The technique is used for lesion excision, corpectomy, vertebral body reconstruction with cages, realignment, and/or plating or screwing. For a successful anterior approach and a suitable instrumental design via screw, adequate morphometric knowledge about body of lumbar vertebrae and disc spaces and standardized volumetric data are also required for neurosurgeons. We aimed morphometric and volumetric evaluation of lumbar bodies and discs to contribute to a safe anterior approach during surgery. We evaluated vertebral body and disc morphometry using stereology in right-handed 25 adult subjects on MRI in the same population with no history of vertebral fractures and degenerative spinal disease. The shape, defining concavity index and volumetric measurements of the body L1-L5 vertebrae, morphometric parameters such as length, height, width of the vertebral body were measured. Also morphometric and volumetric analysis of discs between L1 and L5 were evaluated selected axial and sagittal slices. As expected, the average dimensions of male vertebrae are greater than those of females, but most of them do not differ statistically. Only three dimensions, the mean difference between anterior and central heights of L3, L4 and L5 showed statistically significant difference, indicating smaller central height in both males and females.The transverse and anterior-posterior diameters of the vertebral body, intervertebral disc height and volume displayed no sexual dimorphism (p>0.05). But, the intervertebral disc height and volume increased from L1 to L5 (p <0.01). Concavity indexes for all lumbar vertebrae for both sexes did not differ statistically. The method is important to estimate applying implant size and amount in decompression operations for neurosurgeons.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.28 n.3 20102010-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000300028en10.4067/S0717-95022010000300028
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Lumbar vertebra Body Morphometry Volumetry Stereology Anterior access
spellingShingle	Lumbar vertebra Body Morphometry Volumetry Stereology Anterior access Gocmen-Mas,Nuket Karabekir,Hamit Ertekin,Tolga Edizer,Mete Canan,Yazici Duyar,Izzet Evaluation of Lumbar Vertebral Body and Disc: A Stereological Morphometric Study
description	Anterior access to the L1-L5 vertebrae and disc spaces can be technically challenging, frequently requiring the use of an approach to a surgeon for an adequate exposure. The technique is used for lesion excision, corpectomy, vertebral body reconstruction with cages, realignment, and/or plating or screwing. For a successful anterior approach and a suitable instrumental design via screw, adequate morphometric knowledge about body of lumbar vertebrae and disc spaces and standardized volumetric data are also required for neurosurgeons. We aimed morphometric and volumetric evaluation of lumbar bodies and discs to contribute to a safe anterior approach during surgery. We evaluated vertebral body and disc morphometry using stereology in right-handed 25 adult subjects on MRI in the same population with no history of vertebral fractures and degenerative spinal disease. The shape, defining concavity index and volumetric measurements of the body L1-L5 vertebrae, morphometric parameters such as length, height, width of the vertebral body were measured. Also morphometric and volumetric analysis of discs between L1 and L5 were evaluated selected axial and sagittal slices. As expected, the average dimensions of male vertebrae are greater than those of females, but most of them do not differ statistically. Only three dimensions, the mean difference between anterior and central heights of L3, L4 and L5 showed statistically significant difference, indicating smaller central height in both males and females.The transverse and anterior-posterior diameters of the vertebral body, intervertebral disc height and volume displayed no sexual dimorphism (p>0.05). But, the intervertebral disc height and volume increased from L1 to L5 (p <0.01). Concavity indexes for all lumbar vertebrae for both sexes did not differ statistically. The method is important to estimate applying implant size and amount in decompression operations for neurosurgeons.
author	Gocmen-Mas,Nuket Karabekir,Hamit Ertekin,Tolga Edizer,Mete Canan,Yazici Duyar,Izzet
author_facet	Gocmen-Mas,Nuket Karabekir,Hamit Ertekin,Tolga Edizer,Mete Canan,Yazici Duyar,Izzet
author_sort	Gocmen-Mas,Nuket
title	Evaluation of Lumbar Vertebral Body and Disc: A Stereological Morphometric Study
title_short	Evaluation of Lumbar Vertebral Body and Disc: A Stereological Morphometric Study
title_full	Evaluation of Lumbar Vertebral Body and Disc: A Stereological Morphometric Study
title_fullStr	Evaluation of Lumbar Vertebral Body and Disc: A Stereological Morphometric Study
title_full_unstemmed	Evaluation of Lumbar Vertebral Body and Disc: A Stereological Morphometric Study
title_sort	evaluation of lumbar vertebral body and disc: a stereological morphometric study
publisher	Sociedad Chilena de Anatomía
publishDate	2010
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000300028
work_keys_str_mv	AT gocmenmasnuket evaluationoflumbarvertebralbodyanddiscastereologicalmorphometricstudy AT karabekirhamit evaluationoflumbarvertebralbodyanddiscastereologicalmorphometricstudy AT ertekintolga evaluationoflumbarvertebralbodyanddiscastereologicalmorphometricstudy AT edizermete evaluationoflumbarvertebralbodyanddiscastereologicalmorphometricstudy AT cananyazici evaluationoflumbarvertebralbodyanddiscastereologicalmorphometricstudy AT duyarizzet evaluationoflumbarvertebralbodyanddiscastereologicalmorphometricstudy
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Evaluation of Lumbar Vertebral Body and Disc: A Stereological Morphometric Study

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