How does the correction in lumbar lordosis affect the spinopelvic realignments in degenerative lumbar scoliosis underwent scoliosis surgery?

Table 1 Radiographic parameters concerned in this current study

TK	The Cobb angle between the upper endplate of T4 and the lower endplate of T12
LL	The Cobb angle between the upper endplate of L1 and S1
SVA	the horizontal distance between the C7 plumb line and the posterosuperior corner of S1
TPA	The angle between the line from the axis of the femoral head to the centroid of T1 and the line from the axis of femoral head to the midpoint of the S1 endplate
SS	The angle between the sacral endplate and the horizontal line
PT	the angle between the line from the middle of the sacral plate to the middle of the hip axis and the vertical line
PI	The angle between the line perpendicular to the midpoint of the sacral plate and the line connecting this to the midpoint of the hip axis
SAA	The angle between the tangent line across the front and rear edge of the acetabulum and the horizontal line
PFA	The angle between the line from the middle of the sacral plate to the middle of the hip axis and the parallel line of the longitudinal axis of the femur

Kyphosis was recorded as positive (+), and lordosis as negative (–). Mismatch (PI–LL) were subsequently calculated by subtracting LL from PI. TK indicates thoracic kyphosis, LL Lumbar lordosis, SVA Sagittal vertical axis, TPA T1 pelvic angle, SS Sacral slope, PT Pelvic tilt, PI Pelvic incidence, SAA Sagittal acetabular anteversion, PFA Pelvic femur angle

ISSN: 2047-783X