This is a condition where there is a gradual curve to one side
unaccompanied by any marked rotation. The maximum deviation may be no
more than one inch and a half from the middle line, which point is
generally found about the tenth dorsal vertebra. In the vast majority
of cases deviation is to the left and in such the following alterations
will be noticed: a general convex curve to the left; elevation, and
anterior displacement of the left shoulder; posterior displacement
of the right shoulder; in extension, the right side of the back will
be higher than the left and in addition some torsion to the concave
side, which is easily understood if one recalls the exact changes that
take place during side movement of the normal spine. It is important
to remember that functional scoliosis disappears when the patient is
suspended or assumes the recumbent position.