Fig. 1From: Percutaneous kyphoplasty with or without posterior pedicle screw fixation for the management of severe osteoporotic vertebral compression fractures with nonunionComparison of the Visual Analogue Scale (VAS) and the Oswestry Disability Index (ODI) scores between the two groups. *Significance between the two groups, P < 0.05. Values are expressed in mean ± standard deviationBack to article page