LORDOSIS - lumbar
Lordosis is the inward curve of the lumbar spine (just above the buttocks). A small degree of lordosis is normal.
Too much curving is called swayback.
Lordosis tends to make the buttocks appear more prominent. Children with hyper lordosis will have a large space underneath the lower back when lying face up on a hard surface.
Some children have marked lordosis, but, most often fixes itself as the child grows. This is called benign juvenile lordosis.
Spondylolisthesis may cause lordosis. In this condition, a bone (vertebra) in the spine slips out of the proper position onto the bone below it. You may be born with this. It can develop after certain sports activities, such as gymnastics.
It may develop along with arthritis in the spine.
Much less common causes in children include:
• Achondroplasia, a disorder of bone growth that causes the most common type of dwarfism
• Muscular dystrophy
• Other genetic conditions