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Table 2 Baseline SRS-Schwab adult spinal deformity classification for group A and group B

From: Exploratory analysis of predictors of revision surgery for proximal junctional kyphosis or additional postoperative vertebral fracture following adult spinal deformity surgery in elderly patients: a retrospective cohort study

 

Group A (n = 14)

Group B (n = 40)

P value

Coronal curve type, n (%)

 T

0

0

0.37

 L

4 (20)

8 (28.6)

 

 D

0

0

 

 N

10 (80)

32 (71.4)

 

PI-LL, n (%)

 0

0

4 (10)

0.11

 +

0

6 (15)

 

 ++

14 (100)

30 (75)

 

Global alignment, n (%)

 0

3 (21.4)

5 (12.5)

0.71

 +

5 (35.7)

17 (42.5)

 

 ++

6 (42.9)

18 (45)

 

Pelvic tilt, n (%)

 0

2 (14.3)

7 (17.5)

0.74

 +

5 (35.7)

10 (25)

 

 ++

7 (50)

23 (57.5)

 
  1. PI-LL: 0, < 10°; +, 10–20°; ++, > 20°. Global alignment, based on C7 SVA value: 0, < 4 cm; +, 4–9.5 cm; ++, > 9.5 cm. Pelvic tilt: 0, < 20°; +, 20–30°; ++, > 30°