Research Article
The Mode of Inheritance of Scheuermann’s Disease
Table 2
Radiographic characteristics of Scheuermann’s disease grades in probands.
| Radiographic signs | Scheuermann’s disease grade | I () | II () | III () |
| Kyphosis (Cobb angle degrees) | 25–45 | 45–65 | >65 | Number of segments involved | 3-4 | 4-5 | 5–7 |
| | Percentage of patients with a sign presence |
| Endplate irregularities | 65 | 100 | 68 | Wedge-shaped vertebral body, >5 degrees | 62 | 96 | 100 | Schmorl’s nodules | 38 | 93 | 100 | Vertebral body osteoporosis | 31 | 64 | 68 | Narrowing of intervertebral space | 26 | 92 | 93 | Apophysis fragmentation | 19 | 69 | 52 |
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