Your spinal cord is made up of 5 different areas, based on how many vertebrae (pieces of spine) make it up.
You have:
7 CERVICAL
12 THORACIC
5 LUMBAR
5 SACRAL
5 COCCYGEAL
Therefore the lumbosacral junction (where lumbar meets sacral) is assumed to be at L5 (the 5th and last lumbar vertebrae) and S1 (the 1st sacral vertebrae).
The lumbosacral junction is located in the lower center of the back and between the hips. It consists of the L5 vertebral and the first sacral vertebral body.
Fairly rare MRI term associated with spondylolisthesis at the L5/S1 level... The disk is dragged forward by the spinal slippage and on MRI appears to be herniated (which it isn't)...
The lumbosacral junction refers to the area where the lumbar spine meets the sacrum, specifically at the L5-S1 level. Lumbarization of S1 is a congenital condition in which the first sacral vertebra (S1) does not fuse with the sacrum, effectively behaving like an additional lumbar vertebra. This can lead to variations in spinal structure and may contribute to lower back pain or other issues due to altered biomechanics. It's important to assess this condition in the context of the individual's overall spinal health.
Transitional lumbosacral vertebra is a condition where the last lumbar vertebra (L5) is partially fused with the first sacral vertebra (S1). This can lead to variations in the anatomy and function of the lower back and pelvis, potentially causing pain or discomfort. It is a common anatomical variant that may be seen in some individuals.
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whatis anterior subluxation on L5 on S1 mean?
what does moderate facet arthropathy l5-s1 mean
The superior articular process of the sacrum articulates with the inferior articular process of the last lumbar vertebra (L5) to form the lumbosacral joint.
The foraminal of the L5-S1 refers to the intervertebral foramen located between the fifth lumbar vertebra (L5) and the first sacral vertebra (S1). This anatomical structure serves as a passageway for the nerve roots of the lumbosacral plexus, which supply sensation and motor function to the lower body. Narrowing or impingement in this area, often due to conditions like herniated discs or spinal stenosis, can lead to pain, numbness, or weakness in the legs. Proper assessment and treatment are essential for addressing any issues related to the foraminal at L5-S1.
Encroachment of the neutral foramen on the left at L3-4 due to disc bulging indicates that the intervertebral disc is protruding and compressing the nerve root exit point, potentially leading to symptoms like pain or numbness in the corresponding lower limb. A transitional lumbosacral segment at L5-S1 suggests an anatomical variation where the L5 vertebra may exhibit characteristics of the sacrum, which can predispose this area to abnormal stress and mild disc bulging. This bulging may further contribute to nerve root irritation or compression at this transitional segment.
left sided sacralisation of L5 vertebra seen
The sacrum is connected to the upper vertebrae by the sacroiliac joint. This joint provides stability and allows for a small amount of movement in the pelvis. It is a strong joint that is supported by ligaments and muscles.