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Fig. 1 | Journal of Orthopaedic Surgery and Research

Fig. 1

From: Use of the sagittal Cobb* angle to guide the rod bending in the treatment of thoracolumbar fractures: a retrospective clinical study

Fig. 1

(LL) The angle between the perpendicular lines of the T12 and S1 upper endplates. (TL) The angle between the perpendicular lines of the T10 upper endplate and L2 lower endplates. (PI) The angle between the perpendicular lines of the S1 upper endplate and the line between the midline point of S1 upper endplate and midline point of bilateral caput femoris. (PT) The angle between the plumb line and the line between the midline point of S1 upper endplate and the midline point of bilateral caput femoris. (SS) The angle between the perpendicular line of S1 upper endplate and the horizontal line. The green lines indicate the tangents of the connecting points (point e and point f) of the rod and the upper and lower pedicle screws. Angle b is the angle between the two green lines which is indicated as the bending rod angle in this study

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