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Anatomy & Physiology >> Bone Histology and Joints >> Postural Deformities

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Postural Deformities

Postural deformities are the exaggerated curvature of the spine. The spine is naturally curved but various factors may give rise to the following deformities:

Kyphosis

This is when there is an outward curvature of the spine (in the sagittal plane) causing the person to have a hunchback.

Fig.1 Kyphosis.

Lordosis

This is when there is an inward curvature of the spine (in the sagittal plane) causing the person's belly to protrude.

Fig.2 Lordosis.

Scoliosis

This is when there is an s-shaped exaggeration of the spine (in the coronal plane).

Fig.3 Scoliosis.


Factors contributing to postural deformities: