Types of Spina bifida
Spina bifida occulta
Sometimes called 'closed' spina bifida, this type occurs in an estimated 1 in 10 people. The illustration shows one vertebrae has not formed properly, causing a small gap in the spine, however, it usually causes no health problems and many people go about their lives normally.
Meningocele
In this type, the gap in the spine has resulted in the protective membranes (meninges) surrounding the spinal cord to push out through the space, protruding as a sac on the back full of cerebrospinal fluid. Most often the spinal cord has developed normally and surgery can remove the protective membranes without causing any damage.
Myelomeningocele
This type is the most severe. Both the meninges and spinal cord have pushed out through the gap in the spine. Sometimes more than one vertebrae does not form properly. The position of the lesion can greatly determine the level of physical disability. The higher it is, the stronger likelihood that more nerve damage has occurred.
Vertebra
Disc
Normal
This illustration shows a normal spine. Every vertebrae has formed correctly along with the meninges encasing the spine, protecting it from damage.
Spinous process
Spinal cord
Meninges