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Spina bifida (SB; / ˈ s p aɪ n ə ˈ b ɪ f ɪ d ə /; [9] Latin for 'split spine') [10] is a birth defect in which there is incomplete closing of the spine and the membranes around the spinal cord during early development in pregnancy. [1] There are three main types: spina bifida occulta, meningocele and myelomeningocele. [1]
Patients with spina bifida have a neural tube that has failed to completely form. This is most commonly in the lower back area in the region of the conus medullaris or cauda equina. Therefore, spina bifida affects the bowel similarly to a lower motor neuron spinal cord injury, resulting in a flaccid, unreactive rectal wall.
Spina bifida occulta means hidden split spine. [20] In this type of neural tube defect, the meninges do not herniate through the opening in the spinal canal. [19] The most frequently seen form of spina bifida occulta is when parts of the bones of the spine, called the spinous process, and the neural arch appear abnormal on a radiogram, without ...
Tethering of the spinal cord tends to occur in the cases of Spina bifida with mylomeningocele. In most people the spine grows faster than the spinal cord during development which causes the end of the spinal cord to appear to rise relative to the bony spine next to it. By the time of birth the spinal cord is located between L1 and L2. In a baby ...
Less commonly, the cause of spinal stenosis may be present at birth as seen in achondroplasia, spina bifida, and certain mucopolysaccharidoses. [15] In addition to spinal stenosis, other lower back conditions such as spondylosis, tumors, infections and herniated or ruptured discs can cause NC. These conditions contribute to the potential ...
He is also the medical director of the Spina Bifida Association of America. Brei's research has focused on healthcare outcomes for children with spina bifida and as an adult with spina bifida who is an uncommon leader, he has also served as an advocate. Brei has received extensive recognition for his work in developmental pediatrics.
Dysfunction of the bladder is also frequently seen in patients with Spina Bifida, which affects 1 in 1000 births in the United States. It has been documented that about 61% of patients with Spina Bifida have some form of urinary incontinence. Around 70-80% of patients with spinal cord injury have degrees of bladder dysfunction. [26]
Diastematomyelia is a "dysraphic state" of unknown embryonic origin, but is probably initiated by an accessory neurenteric canal (an additional embryonic spinal canal.).) This condition may be an isolated phenomenon or may be associated with other segmental anomalies of the vertebral bodies such as spina bifida, kyphoscoliosis, butterfly vertebra, hemivertebra and block vertebrae which are ...