Research Article

The Mode of Inheritance of Scheuermann’s Disease

Table 2

Radiographic characteristics of Scheuermann’s disease grades in probands.

Radiographic signsScheuermann’s disease grade
I ( )II ( )III ( )

Kyphosis (Cobb angle degrees)25–4545–65>65
Number of segments involved 3-44-55–7

Percentage of patients with a sign presence

Endplate irregularities6510068
Wedge-shaped vertebral body, >5 degrees6296100
Schmorl’s nodules3893100
Vertebral body osteoporosis316468
Narrowing of intervertebral space269293
Apophysis fragmentation196952