Congenital scoliosis is a sideways curve of the spine caused by a vertebral defect present at birth. Normally occurring in 1 out of 10,000 newborns it is much less common than other forms of scoliosis. Children with scoliosis can sometimes have other health issues, or the abnormality can go unnoticed until adolescence.
Incomplete Formation of Vertebrae
During fetal development, the spine and vertebral column develops first as a single column of tissue and later becomes segmented to form the bony vertebrae. Sometimes a vertebrae will not completely form, forming what is known as a hemivertebrae. This vertebrae will cause a sharp angle in the spine and a curvature that can worsen as a child grows. The abnormality can occur at one vertebrae in the spine or many vertebrae.
Failure of Separation of Vertebrae
If during this time ofvertebral development the tissue does not fully separate, it may result in a partial fusion (bars) between vertebraes. As a result, as the child grows, the connection will prevent the spine from growing evenly and properly resulting in a curve. Both failures of separation and incomplete formation can occur together.
Congenital scoliosis is usually not painful and is normally detected during routine exams. Physical signs include:
If your child has symptoms of congenital scoliosis, your doctor will recommend that other tests are done to check for abnormalities. These tests include:
Observation
Children who present with small curves will be monitored to make sure the curve does not progress. When patients grow, the curves can get worse making the deformity more noticeable. Your doctor will have you return every 6–12 months to check your child’s curve.
Bracing /Casting
This is rarely used to control the part of the spine that does not have vertebral defects.
Spinal Fusion
The abnormal segments ofthe spine are fused together to create one continuous solid bone. The growth of the spine is stopped and it prevents the curve from progressing and getting worse.
Hemivertebrae Removal
The abnormal vertebrae is removed partially correcting the curve and metal implants are placed to help stabilize the surrounding segments as they fuse together.
Growing Rods
For young children with significant curves, rods are surgically placed to control the curve and to also allow for the spine to continue to grow. The rods are lengthened every 6–8 months until the child is fully grown at which time a spinal fusion is performed. The rods may be attached to the spine and/or ribs.
