Table 3 Comparison among SRS-Schwab classification groups
From: Compensatory classification in spine sagittal malalignment with lumbar degeneration
| Â | Normal (51) | Mild (81) | Moderate (23) | Severe (7) | p |
|---|---|---|---|---|---|
Age (years) | 61.37 ± 11.27!@ | 65.10 ± 11.29 | 69.57 ± 8.09! | 72.00 ± 5.77@ | 0.006 |
Gender (M/F) | 16/35 | 27/54 | 5/18 | 2/5 | 0.766 |
PI (°) | 47.66 ± 7.74!@ | 50.53 ± 8.92# | 57.64 ± 7.50!# | 56.59 ± 10.65@ | < 0.001 |
PT (°) | 11.34 ± 3.99!@# | 18.58 ± 7.62!$% | 26.05 ± 5.94@$^ | 37.49 ± 6.92#%^ | < 0.001 |
SS (°) | 36.32 ± 8.08!@# | 31.99 ± 8.05!$ | 31.64 ± 7.76@% | 19.10 ± 9.63#$% | < 0.001 |
LL (°) | 45.21 ± 8.26!@# | 33.46 ± 10.64!$ | 29.08 ± 11.52@% | 13.36 ± 12.56#$% | < 0.001 |
TLK (°) | –6.57 ± 8.21 | –8.01 ± 7.53 | –6.50 ± 8.00 | –6.49 ± 4.53 | 0.693 |
TK (°) | –36.57 ± 9.70!@# | –32.22 ± 11.48! | –28.57 ± 12.40@ | –24.74 ± 8.91# | 0.005 |
C7S (°) | 25.42 ± 5.66! | 27.13 ± 6.08@ | 27.11 ± 6.89# | 34.11 ± 10.57!@# | 0.008 |
C7-SVA (cm) | –0.9 ± 2.06!@# | 3.18 ± 3.94!$% | 7.32 ± 2.54@$^ | 12.14 ± 1.96#%^ | < 0.001 |
ODI (%) | 10.33 ± 6.78!@# | 28.01 ± 16.61! | 27.30 ± 11.19@ | 27.71 ± 12.67# | < 0.001 |
Lumbar VAS | 3.12 ± 1.39!@# | 5.63 ± 2.05! | 4.96 ± 1.99@ | 5.57 ± 1.27# | < 0.001 |
Leg VAS | 2.76 ± 1.87 | 2.77 ± 1.78 | 2.61 ± 1.80 | 4.00 ± 2.45 | 0.357 |