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A common OVF shape which appears as what we called ‘mixed shape’, which is a combination of anterior wedging, bi-concaving, and ‘stair-step’. The anterior height is reduced, but to a less extent than the more middle portion of a vertebra. (A) A line drawing presentation, (B) and (C), three OVF showing ‘mixed shape’ (arrows). (D) A normal segment of thoracic spine show ‘stair-step’ appearance (arrows). OVF, osteoporotic vertebral fracture.
