From: Three-dimensional easy morphological (3-DEMO) classification of scoliosis, part I
 |  | Main curve(s) (mean ± S.D.) | Secondary curve (mean ± S.D.) |
---|---|---|---|
Double curves | 90 | 37.9 ± 12.8 37.0 ± 11.6 |  |
Single curves | 30 | 37.6 ± 14 | 15.5 ± 21.7 |
Triple curves | 4 | 24 ± 16.5 36.7 ± 18.5 27.7 ± 10.3 |  |
Hyperkyphosis | 26 | Kyphosis: 65 ± 8.2 Lordosis: 58.6 ± 10.7 |  |