IMMEDIATE RECIPROCAL CHANGES AT ADJACENT LEVEL FOLLOWING SINGLE-LEVEL ALIF
Main Author: | |
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Publication Date: | 2015 |
Other Authors: | , , , , , , |
Format: | Article |
Language: | eng |
Source: | Coluna/Columna |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512015000400286 |
Summary: | Objective : To assess the segmental sagittal parameters and the adjacent mobile segment after interbody fusion by anterior approach in single-level L5-S1. Methods : Retrospective study. Inclusion: Interbody fusion by anterior approach (10°/15° angle), due to DDD, low-grade spondylolisthesis and/or stenosis without prior lumbar fusion. Thirty-five cases were included (25 women; mean age 47±15 years). Analysis of lumbar radiographs were performed preoperatively and 3 months after surgery. The following parameters were evaluated: lumbar lordosis; segmental lordosis L4-L5 and L5-S1; sacral and L5 slope. Two independent evaluators made the measurements. Student's t test was used. Results : There was correction of lordosis at the L5-S1 level, from an average of 19° prior to surgery to 28° three months after surgery (p<0.001). It was observed reduction of the L4-L5 angle from 17° to 14° (p <0.001). Moreover, there was a small, but statistically significant, reduction of L5 inclination from 17 ° to 13 ° (p=0.007) and increase in the sacral slope from 37° to 40° (p=0.002). The change of total lumbar lordosis was not significant: 52° versus 53° (p=0.461). Before surgical correction, lordosis of the L5-S1 level contributed, on average, 37% of lumbar lordosis, and after, 54% (p<0.001). The L4-L5 level accounted for 34% and decreased to 24% (p<0.001). Conclusion : In the group studied, it was observed a decrease in lordosis of the adjacent mobile level following the treatment of the degenerate level by anterior interbody fusion and concomitant increase in lordosis. |
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IMMEDIATE RECIPROCAL CHANGES AT ADJACENT LEVEL FOLLOWING SINGLE-LEVEL ALIFSpineSpinal fusionLordosisLumbosacral regionIntervertebral disc Objective : To assess the segmental sagittal parameters and the adjacent mobile segment after interbody fusion by anterior approach in single-level L5-S1. Methods : Retrospective study. Inclusion: Interbody fusion by anterior approach (10°/15° angle), due to DDD, low-grade spondylolisthesis and/or stenosis without prior lumbar fusion. Thirty-five cases were included (25 women; mean age 47±15 years). Analysis of lumbar radiographs were performed preoperatively and 3 months after surgery. The following parameters were evaluated: lumbar lordosis; segmental lordosis L4-L5 and L5-S1; sacral and L5 slope. Two independent evaluators made the measurements. Student's t test was used. Results : There was correction of lordosis at the L5-S1 level, from an average of 19° prior to surgery to 28° three months after surgery (p<0.001). It was observed reduction of the L4-L5 angle from 17° to 14° (p <0.001). Moreover, there was a small, but statistically significant, reduction of L5 inclination from 17 ° to 13 ° (p=0.007) and increase in the sacral slope from 37° to 40° (p=0.002). The change of total lumbar lordosis was not significant: 52° versus 53° (p=0.461). Before surgical correction, lordosis of the L5-S1 level contributed, on average, 37% of lumbar lordosis, and after, 54% (p<0.001). The L4-L5 level accounted for 34% and decreased to 24% (p<0.001). Conclusion : In the group studied, it was observed a decrease in lordosis of the adjacent mobile level following the treatment of the degenerate level by anterior interbody fusion and concomitant increase in lordosis.Sociedade Brasileira de Coluna2015-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512015000400286Coluna/Columna v.14 n.4 2015reponame:Coluna/Columnainstname:Sociedade Brasileira de Coluna (SBCO)instacron:SBCO10.1590/S1808-185120151404152741info:eu-repo/semantics/openAccessUribe,Enrique VargasAmaral,RodrigoMarchi,LuisJensen,RubensOliveira,LeonardoFortti,FernandaCoutinho,EtevaldoPimenta,Luizeng2015-12-16T00:00:00Zoai:scielo:S1808-18512015000400286Revistahttps://www.revistacoluna.org/ONGhttps://old.scielo.br/oai/scielo-oai.phpcoluna.columna@uol.com.br||revistacoluna@uol.com.br2177-014X1808-1851opendoar:2015-12-16T00:00Coluna/Columna - Sociedade Brasileira de Coluna (SBCO)false |
dc.title.none.fl_str_mv |
IMMEDIATE RECIPROCAL CHANGES AT ADJACENT LEVEL FOLLOWING SINGLE-LEVEL ALIF |
title |
IMMEDIATE RECIPROCAL CHANGES AT ADJACENT LEVEL FOLLOWING SINGLE-LEVEL ALIF |
spellingShingle |
IMMEDIATE RECIPROCAL CHANGES AT ADJACENT LEVEL FOLLOWING SINGLE-LEVEL ALIF Uribe,Enrique Vargas Spine Spinal fusion Lordosis Lumbosacral region Intervertebral disc |
title_short |
IMMEDIATE RECIPROCAL CHANGES AT ADJACENT LEVEL FOLLOWING SINGLE-LEVEL ALIF |
title_full |
IMMEDIATE RECIPROCAL CHANGES AT ADJACENT LEVEL FOLLOWING SINGLE-LEVEL ALIF |
title_fullStr |
IMMEDIATE RECIPROCAL CHANGES AT ADJACENT LEVEL FOLLOWING SINGLE-LEVEL ALIF |
title_full_unstemmed |
IMMEDIATE RECIPROCAL CHANGES AT ADJACENT LEVEL FOLLOWING SINGLE-LEVEL ALIF |
title_sort |
IMMEDIATE RECIPROCAL CHANGES AT ADJACENT LEVEL FOLLOWING SINGLE-LEVEL ALIF |
author |
Uribe,Enrique Vargas |
author_facet |
Uribe,Enrique Vargas Amaral,Rodrigo Marchi,Luis Jensen,Rubens Oliveira,Leonardo Fortti,Fernanda Coutinho,Etevaldo Pimenta,Luiz |
author_role |
author |
author2 |
Amaral,Rodrigo Marchi,Luis Jensen,Rubens Oliveira,Leonardo Fortti,Fernanda Coutinho,Etevaldo Pimenta,Luiz |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Uribe,Enrique Vargas Amaral,Rodrigo Marchi,Luis Jensen,Rubens Oliveira,Leonardo Fortti,Fernanda Coutinho,Etevaldo Pimenta,Luiz |
dc.subject.por.fl_str_mv |
Spine Spinal fusion Lordosis Lumbosacral region Intervertebral disc |
topic |
Spine Spinal fusion Lordosis Lumbosacral region Intervertebral disc |
description |
Objective : To assess the segmental sagittal parameters and the adjacent mobile segment after interbody fusion by anterior approach in single-level L5-S1. Methods : Retrospective study. Inclusion: Interbody fusion by anterior approach (10°/15° angle), due to DDD, low-grade spondylolisthesis and/or stenosis without prior lumbar fusion. Thirty-five cases were included (25 women; mean age 47±15 years). Analysis of lumbar radiographs were performed preoperatively and 3 months after surgery. The following parameters were evaluated: lumbar lordosis; segmental lordosis L4-L5 and L5-S1; sacral and L5 slope. Two independent evaluators made the measurements. Student's t test was used. Results : There was correction of lordosis at the L5-S1 level, from an average of 19° prior to surgery to 28° three months after surgery (p<0.001). It was observed reduction of the L4-L5 angle from 17° to 14° (p <0.001). Moreover, there was a small, but statistically significant, reduction of L5 inclination from 17 ° to 13 ° (p=0.007) and increase in the sacral slope from 37° to 40° (p=0.002). The change of total lumbar lordosis was not significant: 52° versus 53° (p=0.461). Before surgical correction, lordosis of the L5-S1 level contributed, on average, 37% of lumbar lordosis, and after, 54% (p<0.001). The L4-L5 level accounted for 34% and decreased to 24% (p<0.001). Conclusion : In the group studied, it was observed a decrease in lordosis of the adjacent mobile level following the treatment of the degenerate level by anterior interbody fusion and concomitant increase in lordosis. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512015000400286 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512015000400286 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1808-185120151404152741 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Coluna |
publisher.none.fl_str_mv |
Sociedade Brasileira de Coluna |
dc.source.none.fl_str_mv |
Coluna/Columna v.14 n.4 2015 reponame:Coluna/Columna instname:Sociedade Brasileira de Coluna (SBCO) instacron:SBCO |
instname_str |
Sociedade Brasileira de Coluna (SBCO) |
instacron_str |
SBCO |
institution |
SBCO |
reponame_str |
Coluna/Columna |
collection |
Coluna/Columna |
repository.name.fl_str_mv |
Coluna/Columna - Sociedade Brasileira de Coluna (SBCO) |
repository.mail.fl_str_mv |
coluna.columna@uol.com.br||revistacoluna@uol.com.br |
_version_ |
1752126615112908800 |