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Table 4 Relationships between radiographic parameters of shoulder balance and clinical factors

From: Postoperative shoulder imbalance in Lenke Type 1A adolescent idiopathic scoliosis and related factors

 

N

Clavicle angle at 2 years

p-value (95% confidence interval)

T1 tilt angle at 2 years

p-value (95% confidence interval)

Implant

     

Hybrid

22

0.87 ± 2.21

0.019* (−0.11-1.85)

1.22 ± 4.69

0.04* (−0.85-3.31)

All Pedicle screw

84

2.05 ± 2.04

(1.61-2.49)

3.95 ± 5.63

(2.72-5.17)

UIV

     

Rostral to EV

70

2.19 ± 1.83

0.56 (1.15-2.22)

4.22 ± 5.29

0.047* (2.95-5.48)

EV

26

1.69 ± 2.23

(1.45-2.93)

2.43 ± 5.74

(0.12-4.75)

Caudal to EV

10

1.69 ± 2.02

(0.16-3.06)

0.01 ± 5.59

(−3.99- 4.01)

Distal Adding On

     

+

20

1.07 ± 2.37

0.086 (−0.09- 2.23)

2.86 ± 5.16

0.045* (1.76-3.97)

-

86

1.97 ± 2.01

(1.54-2.41)

5.62 ± 6.63

(2.51-8.72)

Risser grade

     

≥ 4

82

1.87 ± 2.22

0.56 (1.38-2.35)

3.78 ± 5.72

0.33 (2.52-5.04)

<4

23

1.55 ± 1.80

(0.78-2.32)

2.26 ± 4.70

(0.22-4.29)

  1. UIV; Upper instrumented vertebra, EV; end vertebra.
  2. *Statistically significant.