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Evaluation of the thorax shape in the transverse plane with simple clinical technique
Scoliosis volume 5, Article number: O11 (2010)
Introduction
Cobb angle measures the shadows of the two limit vertebrae while scoliotic deformity is a complex 3D phenomenon. There is a deficiency of simple clinical methods of thorax shape evaluation. The objective of the study was to investigate the technique measuring thorax transverse plane deformity in patients with idiopathic scoliosis.
Methods
Thirty scoliotic girls, aged 14.4 ± 1.5 years, single thoracic scoliosis (Lenke 1), thoracic Cobb 54.1 ± 24.7° , and 30 healthy volunteers matched for sex and age (14.7 ± 1.8 years) were examined with Martin anthropometric caliper. The length of the long and the short horizontal axes of the thorax were measured at the level of xiphoid process (upper index) and of lowest costal arch (lower index), both on maximum inspiration and expiration. Asymmetry index defined as difference of the length of the two axes expressed as percentage of the shorter one was calculated.
Results
The upper asymmetry index in the study group was 35.2 ± 18.6 (inspiration) and 35.3 ± 19.0 (expiration), while in the control group is was 13.6 ± 13.6 and 13.6 ± 13.0, respectively, difference significant, p<0.001. The lower asymmetry index in the study group was 26.2 ± 12.9 and 24.9 ± 11.0, while in the control group it was 12.5 ± 11.7 and 10.1± 10.7, respectively, difference significant, p<0.001.
Discussion
Simple method of assessment of thorax asymmetry, adapted for both static and dynamic conditions may be a helpful tool for clinicians.
Conclusions
Thorax asymmetry index revealed significantly higher value in scoliotic patients. Asymmetry of respiratory movements was measured.
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Open Access This article is published under license to BioMed Central Ltd. This is an Open Access article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Kotwicki, T., Zielinska-Kaszubowska, I. & Szulc, A. Evaluation of the thorax shape in the transverse plane with simple clinical technique. Scoliosis 5 (Suppl 1), O11 (2010). https://doi.org/10.1186/1748-7161-5-S1-O11
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DOI: https://doi.org/10.1186/1748-7161-5-S1-O11
Keywords
- Transverse Plane
- Idiopathic Scoliosis
- Cobb Angle
- Asymmetry Index
- Xiphoid Process