Faculty Collaboration Database

Variability in three-dimensional measurements of back contour with raster stereography in normal subjects. J Pediatr Orthop 2000;20(1):54-8

Date

01/21/2000

Pubmed ID

10641689

DOI

10.1097/00004694-200001000-00012

Scopus ID

2-s2.0-0033985796 (requires institutional sign-in at Scopus site)   18 Citations

Abstract

Forty normal children with a mean age of 9.1 years were investigated by using a Quantec Spinal Image System (QSIS). The QSIS uses computerized raster stereography technology to acquire three-dimensional measurements of back contour. Within a 95-percentile confidence interval (a) coronal-plane QSIS angles ranged from 0.05 to 2.36 degrees; (b) transverse-plane QSIS angles ranged from 0.03 to 1.96 degrees; and (c) sagittal-plane QSIS angles ranged from 36.8 to 44.8 degrees. Trunk-alignment deviation ranged from 3.51 to 7.45 mm within a 95-percentile confidence interval. An intraobserver standard deviation of +/-4.2 degrees was noted across all angular metrics. Normal ranges of QSIS-determined values for a population of 40 children without clinical evidence of pathology are reported.

Author List

Thometz JG, Liu XC, Lyon R, Harris GF

Authors

Gerald Harris PhD Director in the Orthopaedic Research Engineering Center (OREC) department at Marquette University
Xue-Cheng Liu PhD Professor in the Orthopaedic Surgery department at Medical College of Wisconsin
Roger M. Lyon MD Adjunct Professor in the Orthopaedic Surgery department at Medical College of Wisconsin
John G. Thometz MD Professor in the Orthopaedic Surgery department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Back
Child
Diagnosis, Computer-Assisted
Female
Humans
Male
Observer Variation
Reference Values