the least dangerous form of spina bifida, in which bones in the spine fail to close but there is no protrusion of the spinal cord or its fluid cushion out of the body
When there is an opening in one or more of the vertebrae of the spinal column without apparent damage to the spinal cord.
a congenital defect of the spinal column where the lamina fail to come together completely at the midline. In this form, there are no exposed neural elements, therefore, this is usually an incidental findings without any clinical findings associated.
Non union of the laminae, most commonly L5, posteriorly behind the cauda equina. It may be simply due to a failure of ossification of an otherwise united cartilaginous neural arch, or else, it may be associated with quite severe abnormalities of the dural sac, cauda equina and spinal cord.
Simplest form of spina bifida; in it, the two sides of the neural arch (laminae of the vertebral arch) of one or more vertebrae fail to develop fully and fuse during embryonic development. Diagnosed by x-ray.
the spinal osseous defect is limited to the posterior neural arches, laminae and the spines. This term is not used any more.
Failure of one or more vertebrae to close with the skin intact and no sac visible on the back. A child with spina bifida occulta usually has no problems, and the defect may go undetected until a routine x-ray is taken.