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Lumbosacral transitional vertebrae consist of the process of the last lumbar vertebra fusing with the first sacral segment. [1] While only around 10 percent of adults have a spinal abnormality due to genetics, a sixth lumbar vertebra is one of the more common abnormalities. [2] Sacralization of the L5 vertebra is seen at the lower right of the ...
Serious skin findings are more rare than these other more typical findings. There are also a number of musculoskeletal findings. They all result from the effects of the lipoma on the spine. Abnormal curvature of the spine, scoliosis, and deformities of the spine and legs distal to the lipoma are common. Due to the proximity of the lipomas to ...
The conus medullaris (or lower termination of the spinal cord) normally terminates at or above the L1-2 disk space (where L1 is the first, or topmost lumbar vertebra). After about 3 months of age, a conus below the L1-2 disk space may indicate a tethered cord and termination below L3-4 is unmistakably tethered.
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 ...
Many people with this type of spina bifida do not even know they have it, as the condition is asymptomatic in most cases. [21] A systematic review of radiographic research studies found no relationship between spina bifida occulta and back pain. [23] More recent studies not included in the review support the negative findings. [24] [25] [26]
Bertolotti's syndrome is characterized by sacralization of the lowest lumbar vertebral body and lumbarization of the uppermost sacral segment. It involves a total or partial unilateral or bilateral fusion of the transverse process of the lowest lumbar vertebra to the sacrum, leading to the formation of a transitional 5th lumbar vertebra.
Spinal muscular atrophy (SMA) is a rare neuromuscular disorder that results in the loss of motor neurons and progressive muscle wasting. [3] [4] [5] It is usually diagnosed in infancy or early childhood and if left untreated it is the most common genetic cause of infant death. [6]
Dural ectasia can be asymptomatic, in which case no intervention is necessary. However, it is associated with chronic pain in patients with Marfan syndrome, suggesting it is a structural risk factor. [20] There is no medical consensus on how to manage symptomatic (painful) dural ectasia.