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Perception of vertical and horizontal orientation in children with scoliosis
Author(s) -
Cheung John,
Sluiter Wim J.,
Veldhuizen Albert G.,
Cool Jan C.,
Van Horn Jim R.
Publication year - 2002
Publication title -
journal of orthopaedic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.041
H-Index - 155
eISSN - 1554-527X
pISSN - 0736-0266
DOI - 10.1016/s0736-0266(01)00129-2
Subject(s) - scoliosis , horizontal and vertical , idiopathic scoliosis , perception , deformity , vertical axis , projection (relational algebra) , physical medicine and rehabilitation , orthodontics , psychology , medicine , mathematics , surgery , geometry , algorithm , neuroscience
Abstract To determine whether the perception of body posture is altered in idiopathic scoliosis, a simple neurophysiologic experiment through laser line projection was conducted to test this hypothesis in three groups of individuals: 89 children with idiopathic scoliosis (IS), 50 children with congenital scoliosis (CS) and 45 controls without scoliosis. The subjects were instructed to adjust a laser line projection to the direction of gravity in vertical and in horizontal projections in a dark environment. The performance, expressed as the deviation from the earth vertical (measured in degrees), was calculated by a computer. The three groups fulfilled the vertical and horizontal adjustments within the same accuracy. No relation with age, sex or severity of scoliotic deformity was found. Yet, the angle between vertical and horizontal laser lines was significantly related with the severity of scoliosis, both in IS and CS. In contrast to our hypothesis, it was concluded that perception of postural control in IS is not altered. Therefore, this study indicates that IS is not likely to be caused by a dysfunction of postural control. © 2002 Orthopaedic Research Society. Published by Elsevier Science Ltd. All rights reserved.