This article is part of the supplement: 4th International Conference on Conservative Management of Spinal Deformities .

Poster presentation

Non invasive evaluation of SpineCor brace correction from surface topography

Nancy Shawfaty¹, Farida Cheriet^1,3, Christine Coillard^1,2, Souad Rhalmi¹, Hubert Labelle^1,2 and Charles Hilaire Rivard^1,2

¹  Research Center, Hôpital Sainte-Justine, 3175 Côte-Sainte-Catherine, Montréal, Québec, Canada, H3T 1C5

²  Department of Orthopedic Surgery, Université de Montréal, PO Box 6128, Station Centre-ville, Montréal, Québec, Canada, H3C 3J7

³  Department of Computer Engineering, École Polytechnique, PO Box 6079, Station Centre-ville, Montréal, Québec, Canada, H3C 3A7

corresponding author email

from 4th International Conference on Conservative Management of Spinal Deformities
Boston, MA, USA. 13–16 May 2007

Scoliosis 2007, 2(Suppl 1):P10doi:10.1186/1748-7161-2-S1-P10

The electronic version of this abstract is the complete one and can be found online at: http://www.scoliosisjournal.com/content/2/S1/P10

Published:

12 October 2007

© 2007 Shawfaty et al; licensee BioMed Central Ltd.

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. PubMed Abstract

Have something to say? Post a comment on this article!