Pathologic Study of Paraspinal Muscles in Different Types of Scoliosis

Background: Scoliosis may be due to neuromuscular or congenital diseases or occur in idiopathic forms. Today, disorders of the paraspinal muscles are viewed as a possible cause of scoliosis. Idiopathic scoliosis is considered as the consequence of primary connective tissue disorders by some researc...

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Main Authors: Ebrahim Ameri, Hamid Behtash, Bahram Mobini, Behshad Bouzari, Tina Shooshtarizadeh, Payam Kabiri
Format: Article
Language:fas
Published: Isfahan University of Medical Sciences 2008-06-01
Series:مجله دانشکده پزشکی اصفهان
Online Access:http://jims.mui.ac.ir/index.php/jims/article/view/169
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author Ebrahim Ameri
Hamid Behtash
Bahram Mobini
Behshad Bouzari
Tina Shooshtarizadeh
Payam Kabiri
author_facet Ebrahim Ameri
Hamid Behtash
Bahram Mobini
Behshad Bouzari
Tina Shooshtarizadeh
Payam Kabiri
author_sort Ebrahim Ameri
collection DOAJ
description Background: Scoliosis may be due to neuromuscular or congenital diseases or occur in idiopathic forms. Today, disorders of the paraspinal muscles are viewed as a possible cause of scoliosis. Idiopathic scoliosis is considered as the consequence of primary connective tissue disorders by some researchers; others maintain that muscle deformities are secondary to compensation of the physical deformity and/or treatment of the patients. This study was performed to determine the primary or secondary nature of paraspinal muscle disorders in scoliosis. Methods: In this cross-sectional study, all patients with scoliosis undergone surgery two hospitals in Tehran, from November 2006 to June 2007, were included. To determine the degree of muscle atrophy, paraspinal muscle biopsies were obtained during the operation from the curvature at apex, on both concave and convex sides. In this study atrophy defined as pathology report of any degree of atrophy in any side. Other data including the degree of deformity according to the Cobb's angle, the use of brace and duration of its use were collected. Findings: 19 (59.4%) and 13 (40.6%) of 32 patients displayed some degrees, and no prominent signs of atrophy, respectively. All the patients with neuromuscular, 43.8% of Idiopathic and 33.4% of congenital scoliosis displayed signs of atrophy. Atrophy percentage in neuromuscular was significantly different comparing two others. Mean deformity in the atrophy and normal groups was 97.82 ± 21.09 and 68.80 ± 25.91 degrees, respectively, with a significant difference between the two groups (p < 0.05). Conclusion: It seems that the atrophy in idiopathic and congenital scoliosis is much lower than neuromuscular. We conclude that idiopathic scoliosis is not due to primary disorders of the paraspinal muscles and other factors such as vestibular disorders, melatonin secretion, platelet microstructure, and other postural control disorders are likely involved in its etiology. Further, the multifactorial nature of scoliosis should not be overlooked. Key words: Scoliosis, Spinal muscular atrophy, Braces.
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spelling doaj.art-6dcf6fa726764d9ea736b32b4d51fe0a2023-09-02T23:38:57ZfasIsfahan University of Medical Sciencesمجله دانشکده پزشکی اصفهان1027-75951735-854X2008-06-0126884653166Pathologic Study of Paraspinal Muscles in Different Types of ScoliosisEbrahim Ameri0Hamid Behtash1Bahram Mobini2Behshad Bouzari3Tina Shooshtarizadeh4Payam Kabiri5Orthoped, Fellowship In Spinal Surgery, Iran University of Medical SciencesOrthoped, Fellowship In Spinal Surgery, Iran University of Medical SciencesOrthoped, Fellowship In Spinal Surgery, Iran University of Medical SciencesOrthoped, Fellowship In Spinal Surgery, Iran University of Medical SciencesPathologist, Iran University of Medical SciencesEpidemiologist, Isfahan University of Medical SciencesBackground: Scoliosis may be due to neuromuscular or congenital diseases or occur in idiopathic forms. Today, disorders of the paraspinal muscles are viewed as a possible cause of scoliosis. Idiopathic scoliosis is considered as the consequence of primary connective tissue disorders by some researchers; others maintain that muscle deformities are secondary to compensation of the physical deformity and/or treatment of the patients. This study was performed to determine the primary or secondary nature of paraspinal muscle disorders in scoliosis. Methods: In this cross-sectional study, all patients with scoliosis undergone surgery two hospitals in Tehran, from November 2006 to June 2007, were included. To determine the degree of muscle atrophy, paraspinal muscle biopsies were obtained during the operation from the curvature at apex, on both concave and convex sides. In this study atrophy defined as pathology report of any degree of atrophy in any side. Other data including the degree of deformity according to the Cobb's angle, the use of brace and duration of its use were collected. Findings: 19 (59.4%) and 13 (40.6%) of 32 patients displayed some degrees, and no prominent signs of atrophy, respectively. All the patients with neuromuscular, 43.8% of Idiopathic and 33.4% of congenital scoliosis displayed signs of atrophy. Atrophy percentage in neuromuscular was significantly different comparing two others. Mean deformity in the atrophy and normal groups was 97.82 ± 21.09 and 68.80 ± 25.91 degrees, respectively, with a significant difference between the two groups (p < 0.05). Conclusion: It seems that the atrophy in idiopathic and congenital scoliosis is much lower than neuromuscular. We conclude that idiopathic scoliosis is not due to primary disorders of the paraspinal muscles and other factors such as vestibular disorders, melatonin secretion, platelet microstructure, and other postural control disorders are likely involved in its etiology. Further, the multifactorial nature of scoliosis should not be overlooked. Key words: Scoliosis, Spinal muscular atrophy, Braces.http://jims.mui.ac.ir/index.php/jims/article/view/169
spellingShingle Ebrahim Ameri
Hamid Behtash
Bahram Mobini
Behshad Bouzari
Tina Shooshtarizadeh
Payam Kabiri
Pathologic Study of Paraspinal Muscles in Different Types of Scoliosis
مجله دانشکده پزشکی اصفهان
title Pathologic Study of Paraspinal Muscles in Different Types of Scoliosis
title_full Pathologic Study of Paraspinal Muscles in Different Types of Scoliosis
title_fullStr Pathologic Study of Paraspinal Muscles in Different Types of Scoliosis
title_full_unstemmed Pathologic Study of Paraspinal Muscles in Different Types of Scoliosis
title_short Pathologic Study of Paraspinal Muscles in Different Types of Scoliosis
title_sort pathologic study of paraspinal muscles in different types of scoliosis
url http://jims.mui.ac.ir/index.php/jims/article/view/169
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AT behshadbouzari pathologicstudyofparaspinalmusclesindifferenttypesofscoliosis
AT tinashooshtarizadeh pathologicstudyofparaspinalmusclesindifferenttypesofscoliosis
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