Definition of all parameters used: parameters description | |
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C2–C7 lordosis | Angle between the lower plate of C2 and the lower plate of C7 |
C2–C7 SVA | The distance from the posterior, superior corner of C7 to the plumb-line from the centroid of C2 |
T1 slope | Angle between a horizontal line and the superior endplate of T1 |
TS–CL | Mismatch between T1 slope and CL |
Thoracic inlet angle | Angle formed by a line perpendicular to the superior endplate of T1 and a line connecting the centre of the T1 upper endplate and the upper end of the sternum |
Neck tilt | Angle formed by the reference vertical line drawn in the upper end of the sternum and a line connecting the centre of the T1 upper end plate and the upper end of the sternum |
Spine-cranial angle | The angle is defined between the C7 slope and the straight line joining the middle of the C7 end plate and the middle of the sella turcica |