Skip to main content

Table 3 Comparison of parameters in Roussouly classification between MC and NMC

From: Which sagittal evaluation system can effectively predict mechanical complications in the treatment of elderly patients with adult degenerative scoliosis? Roussouly classification or Global Alignment and Proportion (GAP) Score

Variables

MC

(n = 41)

NMC

(n = 39)

P value

Roussouly-type

  

0.082

 1

4 (9.8%)

11 (28.2%)

0.035

 2

5 (12.2%)

6 (15.4%)

0.679

 3

23 (56.1%)

19 (48.7%)

0.509

 4

9 (22.0%)

3 (7.7%)

0.074

Post-LA

  

0.262

 L2

2 (4.9%)

0 (0%)

0.162

 L2/3

3 (7.3%)

0 (0%)

0.085

 L3

4 (9.8%)

6 (15.4%)

0.447

 L3/4

3 (7.3%)

3 (7.7%)

0.949

 L4

12 (29.3%)

16 (41.0%)

0.270

 L4/5

11 (26.8%)

6 (15.4%)

0.211

 L5

6 (14.6%)

8 (20.5%)

0.489

Ideal LA

  

0.082

 L3/4

9 (30.0%)

3 (7.7%)

0.074

 L4

23 (56.1%)

19 (48.7%)

0.509

 L4/5

5 (12.2%)

6 (15.4%)

0.679

 L5

4 (9.8%)

11 (28.2%)

0.035

Match ideal LA

9 (30.0%)

25 (64.1%)

 < 0.001

Post-IP

  

0.033

 T11

1 (2.4%)

0 (0%)

0.326

 T12

8 (19.5%)

2 (5.1%)

0.053

 L1

19 (46.3%)

15 (38.5%)

0.476

 L1/2

0 (0%)

2 (5.1%)

0.142

 L2

8 (19.5%)

18 (46.2%)

0.011

 L3

5 (12.2%)

2 (5.1%)

0.264

Ideal IP

  

0.082

 T12

9 (22.0%)

3 (7.7%)

0.074

 L1

23 (56.1%)

19 (48.7%)

0.509

 L2

5 (12.2%)

6 (15.4%)

0.679

 L3

4 (9.8%)

11 (28.2%)

0.035

Match ideal Post-IP

15 (36.6%)

11 (28.2%)

0.424

Post-PI

53.1 ± 13.0

48.7 ± 8.9

0.082

Post-PT

25.0 ± 12.2

19.4 ± 5.3

0.009

Post-SS

27.7 ± 6.0

28.6 ± 8.3

0.577

Match Roussouly-type

3 (7.3%)

9 (23.1%)

0.048

Roussouly score

0.6 ± 0.6

0.9 ± 0.7

0.032

  1. Post, postoperative; MC, mechanical complication group; NMC, no mechanical complication group; LA, lumbar apex; IP, inflexion point; PI, pelvic incidence; PT, pelvic tilt; SS, sacral slope