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Myelography is a type of radiographic examination that uses a contrast medium (e.g. iodised oil [1]) to detect pathology of the spinal cord, including the location of a spinal cord injury, cysts, and tumors. Historically the procedure involved the injection of a radiocontrast agent into the cervical or lumbar spine, followed by several X-ray ...
The limited number of lumbar vertebrae in chimpanzees and gorillas result in an inability to lordose (curve) their lumbar spines, in contrast to the spines of Old World monkeys and Nacholapithecus and Proconsul, which suggests that the last common ancestor was not "short-backed" as previously believed. [7]
In the lumbar spine, facets provide about 20 percent of the twisting stability in the low back. Each facet joint is positioned at each level of the spine to provide the needed support especially with rotation. [citation needed] Facet joints also prevent each vertebra from slipping over the one below.
Adopting a forward head and rounded shoulders posture places increased stress on the neck (cervical spine), mid-back (thoracic spine) and low back (lumbar spine), Dr. Halfman explains.
The radiologist will first numb the skin with the local anesthetic and then inject the gadolinium based contrast media into the spinal cord at the interspace between third and fourth lumbar vertebrae (L3-L4). Then the patient will be asked to roll on the table until the contrast is evenly distributed in the spinal cord and fill the nerve roots.
CT scan is helpful to see small bony elements of the spine such as facet joint and to determine whether there is osteoporosis of the spine. However, interverterbral foramen and ligaments are not well visualised on the CT. Therefore, contrast is injected into the spinal canal via lumbar puncture and then imaged using CT scan (known as CT ...
Lumbarization is an anomaly in the spine. It is defined by the nonfusion of the first and second segments of the sacrum. The lumbar spine subsequently appears to have six vertebrae or segments, not five. This sixth lumbar vertebra is known as a transitional vertebra. Conversely the sacrum appears to have only four segments instead of its ...
Lumbar provocative discography (also referred to as "discography" or discogram) is an invasive diagnostic procedure for evaluation for intervertebral disc pathology. It is usually reserved for persons with persistent, severe low back pain (LBP) who have abnormal spaces between vertebrae on magnetic resonance imaging (MRI), where other diagnostic tests have failed to reveal clear confirmation ...
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