Dynamic effects of postural sway on back surface contour: implication for 3-D assessment of spinal position

Author

Thometz, J. ; Liu, XC ; McGrady, L. ; Harris, G.F.

Author_Institution

Dept. of Orthopaedic Surgery, Med. Coll. of Wisconsin, Milwaukee, WI, USA

Volume

5

fYear

1998

fDate

28 Oct-1 Nov 1998

Firstpage

2744

Abstract

Postural sway secondary to adjustment of balance in patients with idiopathic scoliosis is well documented. While Moire photography and Raster stereography have been introduced to assess the back contour of scoliotic patients, no studies using motion analysis system are reported to investigate the effects of postural sway on back shape. In this studying the Quantec spinal image system (QSIS) was used to record spinal deformity. Our study showed that the Quantec spinal image system is sensitive to changes in 3-D trunk position. As a conclusion, we note the need to constrain trunk position to assure reliable measurements

Keywords

biomechanics; biomedical measurement; image motion analysis; medical image processing; orthopaedics; shape measurement; stereo image processing; 3-D assessment; 3-D trunk position; Quantec spinal image system; back surface contour; balance adjustment; computerised raster stereography; coronal plane deformity; dynamic effects; idiopathic scoliosis; motion analysis system; postural sway; spinal deformity; spinal position; Back; Biomedical imaging; Charge-coupled image sensors; Educational institutions; Motion analysis; Orthopedic surgery; Photography; Position measurement; Shape; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE

Conference_Location

Hong Kong

ISSN

1094-687X

Print_ISBN

0-7803-5164-9

Type

conf

DOI

10.1109/IEMBS.1998.745245

Filename

745245