Title :
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
fDate :
28 Oct-1 Nov 1998
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;
Conference_Titel :
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-5164-9
DOI :
10.1109/IEMBS.1998.745245
