There are two rod sizes routinely used for the correction of juvenile and adolescent idiopathic scoliosis, 5.5mm and 6.35mm, typically stainless steel. Currently there is no scientific evidence supporting the superiority of one size rod relative to the other. This study will evaluate the amount of radiographic correction obtained using the 5.5mm versus the 6.35mm spinal instrumentation rods.
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Radiographic measurements of curve angles and balance.
Timeframe: Pre-operatively, 6 wks post-op, 1 & 2 year post-op.