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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.