Non-invasive quantitative assessment of scoliosis spinal surgery outcome

DOIResolve DOI: http://doi.org/10.1117/12.2007515
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EditorSearch for: Weaver, John B.; Search for: Molthen, Robert C.
TypeArticle
Proceedings titleMedical Imaging 2013: Biomedical Applications in Molecular, Structural, and Functional Imaging
Series titleProceedings of SPIE; no. 8672
ConferenceSPIE Medical Imaging, 9 February 2013, Lake Buena Vista, Florida, USA
Article number86721N
AbstractImproving the appearance of the trunk is an important goal of scoliosis surgical treatment, mainly in patients' eyes. Unfortunately, existing methods for assessing postoperative trunk appearance are rather subjective as they rely on a qualitative evaluation of the trunk shape. In this paper, an objective method is proposed to quantify the changes in trunk shape after surgery. Using a non-invasive optical system, the whole trunk surface is acquired and reconstructed in 3D. Trunk shape is described by two functional measurements spanning the trunk length: the lateral deviation and the axial rotation. To measure the pre and postoperative differences, a correction rate is computed for both measurements. On a cohort of 36 scoliosis patients with the same spinal curve type who underwent the same surgical approach, surgery achieved a very good correction of the lateral trunk deviation (median correction of 76%) and a poor to moderate correction of the back axial rotation (median correction of 19%). These results demonstrate that after surgery, patients are still confronted with residual trunk deformity, mainly a persisting hump on the back. That can be explained by the fact that current scoliosis assessment and treatment planning are based solely on radiographic measures of the spinal deformity and do not take trunk deformity into consideration. It is believed that with our novel quantitative trunk shape descriptor, clinicians and surgeons can now objectively assess trunk deformity and postoperative shape and propose new treatment strategies that could better address patients' concern about their appearance.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedYes
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This is a non-NRC publication

"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.

NPARC number23001002
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Record identifiercd4653e3-9306-4a25-8db2-32e660ede32e
Record created2016-11-25
Record modified2017-09-13
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