Simplified technique for da Vinci view spine projection
1 Paweł Główka, 1 Tomasz Kotwicki, 2 Dominik Gaweł, 2 Michał Nowak
1 Department of Pediatric Orthopaedics and Traumatology
University of Medical Sciences, Poznan, Poland
2 Department of Virtual Engineering, Poznan University of Technology, Poznan, Poland
Background:
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da Vinci projection is a user friendly picture of scoliotic spine seen from the cephalad side in the horizontal plane. da Vinci projection can be obtained by using techniques which allow for tree‐
dimensional reconstructions: CT, MRI, EOS.
the aim of this study is to remind a simple way of drawing the DaVinci‐ projection on the basis of regular X‐rays (AP, lat)
True DaVinci projection‐ Method of drawing
• the vertebral bodies central points on AP and lateral x‐rays are determined. • The CSL is drawn on both projections
• The distance between CSL and vertebral central points is measured.
True da Vinci projection‐ Method of drawing
• The point representing CSL seeing from
cephalad‐side is marked on plotting
paper. • This point is defined as a center point of the coordinate system (x;y).
• The distances measured in the coronal
plane are defined as values X, and the
ones measured in the sagittal plane as values Y. • The coordinates for vertebral bodies
central points are determined and plotted on the paper.
True da Vinci projection‐ Method of drawing
• After connecting points representing apical and limit vertebrae the representation of EAE planes was obtained. In this way the True da Vinci projection was drawn.
• After connecting points representing apical vertebrae with CSL Simplified True da Vinci projection was drawn.
True da Vinci projection‐ Method of drawing
• Validation the method of drawing da Vinci projection is presented on the poster