Loss of regularity in the curvature of the thoracolumbar spine: A measure of structural failure

Abstract

Departure from regularity (smoothness) in the curvature of the spine was quantified and correlated with the number of fractures, deficits in height, BMD, and identified women with vertebral fractures. Introduction: Differences in anterior and posterior vertebral heights (VHs) form the thoracolumbar curvature needed for stability in bipedal gait. Modest differences in VHs within and between adjacent vertebrae allow the spine curve to change its trajectory gently. Large differences in VHs, as occur following a fracture, produce abrupt changes in the direction of the curve, producing a departure from regularity (i.e., irregularity or loss of smoothness). Materials and Methods: VHs and BMD were ..