scholarly journals Biomechanical analysis and modeling of different vertebral growth patterns in adolescent idiopathic scoliosis and healthy subjects

Scoliosis ◽  
2011 ◽  
Vol 6 (1) ◽  
Author(s):  
Lin Shi ◽  
Defeng Wang ◽  
Mark Driscoll ◽  
Isabelle Villemure ◽  
Winnie CW Chu ◽  
...  
2019 ◽  
Vol 37 (2) ◽  
pp. 225-233
Author(s):  
Anderson Sales Alexandre ◽  
Evandro Fornias Sperandio ◽  
Liu Chiao Yi ◽  
Josy Davidson ◽  
Patrícia Rios Poletto ◽  
...  

ABSTRACT Objective: To evaluate the chest wall shape in patients with adolescent idiopathic scoliosis (AIS) in comparison to healthy subjects and the association between the chest wall shape with the spine deformity and lung function in patients with AIS. Methods: This cross-sectional study enrolled 30 AIS patients and 20 healthy subjects aged 11-18 years old. The Cobb angle evaluation was performed in AIS patients. The chest wall shape was assessed by the photogrammetry method, using the Postural Assessment Software (PAS). We created thoracic markers shaped as angles (A) and distances (D), as follows: A2 (right acromion/xiphoid/left acromion), A4L (angle formed between the outer point of the smallest waist circumference and its upper and lower edges on the left side), A7 (angle formed by the intersection of the tangent segments of the upper and lower scapulae angles), D1R/D1L [distance between the xiphoid process and the last false rib on the right (R) and left (L) sides], and D3 (distance between xiphoid process and anterior superior iliac spine). Results: The thoracic markers A2 and A7 were significantly higher, while the A4L and D1R/D1L were significantly reduced in the AIS group compared to the control. Moderate correlations were found between: A2 and the main and proximal thoracic Cobb angles (r=0.50, r=0.47, respectively); D1R/D1L and the main thoracic Cobb angle (r=- 0.40); and the forced expiratory volume in the first second (FEV1) and D3R (r=0.47). Conclusions: The photogrammetry method was able to detect chest wall changes in AIS patients, besides presenting correlation between Cobb angles and lung function.


2010 ◽  
Vol 51 (3) ◽  
pp. 188-196 ◽  
Author(s):  
Shoufeng Wang ◽  
Yong Qiu ◽  
Zhaolong Ma ◽  
Caiwei Xia ◽  
Feng Zhu ◽  
...  

Spine ◽  
2012 ◽  
Vol 37 (18) ◽  
pp. E1148-E1154 ◽  
Author(s):  
Annie P. Y. Yim ◽  
Hiu-Yan Yeung ◽  
Vivian W. Y. Hung ◽  
Kwong-Man Lee ◽  
Tsz-Ping Lam ◽  
...  

2017 ◽  
Vol 1 (4) ◽  
pp. 80-90 ◽  
Author(s):  
Houria Kaced ◽  
Belabbassi Hanene ◽  
Assia Haddouche

Background: Adolescent Idiopathic Scoliosis (AIS) occurs among children during their pubertal growth spurt. Although there is no clear consensus on the difference in body height between AIS and healthy controls, it is generally thought that the development and curve progression in patients with AIS is closely associated with their growth rate. Our aim is to compare the anthropometric parameters of children with AIS and those of a control   group within different age groups ranging from 9 to 16 years old. Methods: It is a prospective, cross-sectional, case-control study which include 431children, 258 girls, 110 with AIS and 148 healthy controls, whereas in the group of males 173, 49 have AIS and 124 don’t have deformity. Anthropometric parameters, clinical examination of the trunk and radiological assessment of the spine are records. The statistical analysis is performed using SPSS package. Children are examined from a school-screening program in our physical medicine department in the university hospital of Douera in Algiers. Measurements are assessed, including anthropometric parameters (body height, body weight, secondary sexual characters using Tanner stage, puberty age), trunk asymmetry and Cobb angle of scoliosis. Results: Girls with AIS are generally taller, with a higher weight than the healthy controls with a significant difference at the age of 12 years old. Otherwise, boys with AIS aged of 14 years are significantly taller than their controls. Conclusion: The growth patterns in terms of tallness with AIS are significantly different from healthy controls at the ages of 12 for girls and 14 for boys.


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