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Non invasive evaluation of SpineCor brace correction from surface topography

Objective

Surface topography is used as a non invasive acquisition of the external trunk geometry of adolescent idiopathic scoliosis (AIS). The aim of this study is to investigate a surface evaluation approach to evaluate the three-dimensional correction by inferring the in-brace trunk surface of patients undergoing SpineCor brace treatment [1].

Study design

Inspeck 3D digitizers were used to acquire the external without-brace and with-brace trunk of fifteen patients. On both acquisitions, anatomical landmarks were identified. Using landmark based elastic registration, the in-brace surface is obtained by transforming the without-brace trunk into the with-brace trunk. To quantify the external trunk correction, indices of torso asymmetry are extracted from the without-brace and the in-brace surface. The external correction is then correlated to thoracic and vertebral rotations determined from three-dimensional reconstruction of the spine and rib cage from multiple X-ray images.

Results

Preliminary results have demonstrated that clinical indices measured on the in-brace trunk successfully quantify the three-dimensional correction induced by the SpineCor brace on the trunk surface.

Conclusion

The proposed approach is a first step in establishing reliable non invasive and radiation free follow up for brace treatment while providing a quantitative three-dimensional measure of the external correction.

References

  1. Coillard C, Leroux MA, Badeaux J, Rivard CH: SPINECOR: a new therapeutic approach for idiopathic scoliosis. Stud Health Technol Inform. 2002, 88: 215-217.

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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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Shawfaty, N., Cheriet, F., Coillard, C. et al. Non invasive evaluation of SpineCor brace correction from surface topography. Scoliosis 2 (Suppl 1), P10 (2007). https://doi.org/10.1186/1748-7161-2-S1-P10

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  • DOI: https://doi.org/10.1186/1748-7161-2-S1-P10

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