Table 4 Pre- to postoperative differences of the sagittal alignment parameters for the mean values of all four raters together. aMedian (IQR), SL = segmental lordosis, vDH = ventral disc height, dDH = dorsal disc height, LL = lumbar lordosis, PI = pelvic incidence, PT = pelvic tilt, SS = sacral slope, SVA = sagittal vertical axis. Significant values (p < 0.05) are marked in bold type
preoperativea | postoperativea | Δ | p | |
|---|---|---|---|---|
Rater | ALL | |||
SL | 18.1° (13.7 - 24.2) | 22.8° (20.5 - 28.4) | +4.7° | <0.001 |
vDH | 6,5mm (4.3 - 8.4) | 13.0mm (11.8 - 14.1) | +6.5mm | <0.001 |
dDH | 3.8mm (2.6 - 4.8) | 7.5mm (6.3 - 8.6) | +3.7mm | <0.001 |
LL | 56.9° (48.9 - 64.9) | 58.3° (51.3 - 68.3) | +1.4° | 0.035 |
PI | 58.8 °(52.3 - 70.3) | 61.8° (51.7 - 68.5) | +3.0° | 0.081 |
PT | 20.8° (12.6 - 27.4) | 19.6° (14.0 - 24.4) | -1.2° | 0.151 |
SS | 41.9° (35.5 - 46.4) | 40.8° (36.5 - 48.7) | -1.1° | 0.936 |
SVA | 20.8mm (12.6 - 48.6) | 24.6mm (9.8 - 41.3) | +3.8mm | 0.862 |