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Table 1 Comparison of patient characteristics between the two groups

From: A novel posterior multiple screws distraction reducer system versus anterior release, posterior internal distraction, and subsequent spinal fusion for severe scoliosis

  MSDR (n = 18) ARPIDF (n = 18) p-value
Age (years) 18.4 ± 2.8 19.2 ± 2.5 0.41
Sex    0.97
 Male 8 7  
 Female 10 11  
Etiology    0.98
 Idiopathic 15 16  
 Lenke curve classification (I\II\III\IV\V\VI) (0\5\3\7\0\0) (0\6\2\8\0\0) 0.85
 Syringomyelia associated 3 2  
Flexibility of the main thoracic curve (%) 14.8 ± 4.2 12.1 ± 3.8 0.96
Number of fused segments 13.4 ± 1.3 13.7 ± 1.2 0.48
Number of screws 18.8 ± 2.2 17.9 ± 3.1 0.32
Operation time (min) 287.5 ± 24.5 563.0 ± 34.2 0
Estimated blood loss (mL) 1024.8 ± 148.2 1320.5 ± 237.4 0.007
Hospitalization time (days) 7.9 ± 2.1 14.9 ± 3.0 0
Follow-up duration (years) 2.8 ± 0.4 2.9 ± 0.5 0.82
  1. MSDR multiple screws distraction reducer, ARPIDF anterior release, posterior internal distraction, and subsequent spinal fusion