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Curve Characteristics Among the Osteogenesis Imperfecta Types
| No. (%) of Patients |
||||
| Curve Characteristic | Type I (N = 62) | Type III (N = 55) | Type IV (N = 32) | All (N = 149) |
| Convexity to right | 31 (50) | 30 (55) | 12 (38) | 73 (49) |
| Single curve | 60 (97) | 32 (58) | 26 (81) | 118 (79) |
| Double curve | 2 (3) | 20 (36) | 6 (19) | 28 (19) |
| Triple curve | 0 (0) | 3 (5) | 0 (0) | 3 (2) |
| Spine fusion and instrumentation | 1 (2) | 13 (24) | 8 (25) | 22 (15) |
