What does transitive mean in geometry? what is the transitive property of congruence.
Lumbosacral transitional vertebra (LSTV) is a congenital anomaly of the spine that arises because of mutations in the Hox genes, giving rise to sacralization (fifth lumbar vertebra shows assimilation to the sacrum) and lumbarization (first sacral vertebra shows lumbar configuration).
“Transitional vertebra” is a fairly common spinal deformity, in which the lowest vertebrae of the spine, the fifth lumbar vertebra, is partially fused to the top of sacrum. This odd hybrid bone is not a proper lumbar vertebra, and certainly not a sacral segment either — thus, it is a “transitional” vertebra.
A transitional vertebrae transverse process is typically enlarged and often looks like a fake joint which touches the pelvis. This fake joint between this enlarged transverse process and the sacrum, if inflamed, can cause low back pain.
Lumbosacral transitional vertebrae (LSTV) are a relatively common variant and can be seen in ~25% (range 15-35%) of the general population 1-3. Non-recognition of this variant and/or poor description in the report can lead to operations or procedures performed at the wrong level.
Bertolotti syndrome occurs when the last lumbar vertebra—the lumbosacral transitional vertebra, or LSTV—and the sacrum either fuse or create a false joint thanks to an enlarged transverse process (bony bumps on the vertebrae where muscles and ligaments attach) on the LSTV.
Bertolotti’s syndrome (BS) refers to the possible association between the congenital malformation lumbosacral transitional vertebra (LSTV), and low back pain (LBP). Several treatments have been proposed including steroid injections, resections of the LSTV, laminectomy, and lumbar spinal fusion.
A transitional vertebra is one that has indeterminate characteristics and features of vertebrae from adjacent vertebral segments. They occur at the junction between spinal morphological segments: atlanto-occipital junction.
Lumbarization of the spine is a painful condition that has numerous treatment options. Given it is a congenital condition, it can be diagnosed early and treatments can be pursued before it is too late.
The syndrome affects 4% to 8% of the population . BS is characterized by anomalous enlargement of the transverse processes of the most caudal lumbar vertebra, which may articulate or fuse with the sacrum or ilium and cause isolated L4-5 disc disease.
A 10-year-old boy presented with intermittent abdominal pain, evolving over the three previous months.
The cause of sacralization isn’t yet known. It occurs during embryonic development, when the vertebrae begin to ossify, in about the eighth week. There may be a genetic predisposition involved.
Sacroiliitis (say-kroe-il-e-I-tis) is an inflammation of one or both of your sacroiliac joints — situated where your lower spine and pelvis connect. Sacroiliitis can cause pain in your buttocks or lower back, and can extend down one or both legs. Prolonged standing or stair climbing can worsen the pain.
Background. Lumbosacral transitional vertebra (LTV) is a common congenital and hereditary anomaly in many dog breeds.
It has an inverted triangular, concave shape. The bone consists of a base, apex and four surfaces: Base – articulates superiorly with the fifth lumbar vertebra and its associated intervertebral disc.
Lumbar spondylosis is the term given to normal wear and tear of the lumbar (lower back) spinal discs. As we age, spinal discs lose moisture and shrink, bone spurs develop, and bones because weaker. While many people over 50 experience mild lumbar spondylosis, most experience no symptoms.