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Table 1 Demographic data

From: Bilateral apical vertebral derotation technique by vertebral column manipulation compared with vertebral coplanar alignment technique in the correction of lenke type 1 idiopathic scoliosis

  Group A* Group B*
No. patients 24 24
Age at surgery (years ± SD) 14.3±2.4 15.1 ±3.2
Male/female 8/16 9/15
Risser sign at surgery(N ± SD) 3.5 ±1.7 3.6 ±1.3
Flexibility of major curve (% ± SD) 37.2±9.7 38.8±10.3
Lenke IS lumbar spine modifier, N (%)   
   A 14 (58) 15(62)
   B 6 (25) 5 (21)
   C 4 (17) 4 (17)
Kyphosis (T5-T12 Cobb angle), N (%)   
   Hypokyphosis (inferior to 10°) 4 (17) 4(17)
   Normokyphosis (between 10° and 40°) 16 (66) 17(70)
   Hyperkyphosis (superior to 40°) 4 (17) 3(13)
  1. *Group A, bilateral apical vertebral derotation by VCM; Group B, VCA.