Scheuermann disease is also known as:

Question

Accepted Answer

The correct option is (1):
Scheuermann disease is a structural spinal deformity that is professionally referred to by several names, the most common of which are Scheuermann's kyphosis or **Juvenile Kyphosis**. This condition represents the most frequent cause of rigid (non-correctable) kyphosis in adolescents. Kyphosis itself is defined as an exaggerated, outward (posterior) curvature of the thoracic spine, giving a classic "round back" or "hunchback" appearance. The use of the term "Juvenile" is crucial as it correctly places the onset of the disease during the growing, adolescent years, typically between the ages of 10 and 17. The definitive diagnosis is often confirmed by X-rays showing the characteristic *anterior wedging* of three or more adjacent vertebral bodies.

The incorrect option is (2):
**Sway Back** is the colloquial term for hyperlordosis, which is a spinal deformity opposite to kyphosis. Lordosis is an *excessive inward* (anterior) curvature of the spine, usually affecting the lumbar region (lower back) or cervical spine (neck). A patient with sway back would exhibit an exaggerated arch in the lower back with protruding buttocks and abdomen, whereas a patient with Scheuermann disease has a prominent rounding of the upper back. The two conditions describe different curves in opposing directions of the sagittal plane.

The incorrect option is (3):
**Scoliosis** is a condition defined by a *lateral*, or sideways, curvature and rotation of the spine, making it a deformity in the coronal plane. Scheuermann disease is a deformity primarily restricted to the sagittal plane (front-to-back curve). While scoliosis can sometimes coexist as a secondary condition in patients with Scheuermann disease, the disease itself is not scoliosis. They are fundamentally distinct pathological descriptions of spinal malformation.

The incorrect option is (4):
**Fallen Arches**, or pes planus, is a postural deformity related to the foot. It is characterized by the collapse of the foot's medial longitudinal arch, causing the entire sole to contact the ground. As this condition involves the musculo-skeletal structure of the foot and is entirely unrelated to the vertebral column, it is not a synonym for Scheuermann disease.