What does ligamentum flavum turn into?
What does ligamentum flavum turn into?
Degenerative change of the ligamentum flavum can result in elastic fibers being replaced with collagen. This replacement with collagen causes the ligamentum flavum to thicken (up to 10 times its normal width in some instances), which in turn can cause stenosis of the vertebral canal.
What are the 2 parts of the intervertebral discs?
The intervertebral disc is made up of two components: the annulus fibrosus and thenucleus pulposus.
What ligament resides in the spinal canal?
The Anterior Longitudinal Ligament attaches to the front (anterior) of each vertebra. This ligament runs up and down the spine (vertical or longitudinal). The Posterior Longitudinal Ligament runs up and down behind (posterior) the spine and inside the spinal canal.
What passes through the vertebral canal?
The spinal canal (or vertebral canal or spinal cavity) is the canal that contains the spinal cord within the vertebral column. The spinal canal is formed by the vertebrae through which the spinal cord passes. It is a process of the dorsal body cavity.
How do you treat ligamentum flavum thickening?
The current treatment approach for LF thickening includes operative and nonoperative treatment. Operative treatment includes such procedures as excision of the LF, decompressive laminectomy, and minimally invasive decompression.
What is the role of the ligamentum flavum?
It resists excessive separation of the adjacent vertebral lamina and prevents buckling of the ligament into the spinal canal during extension, preventing canal compression.
What is lumbosacral intervertebral disc?
The lumbar spine is composed of motion segments. Each motion segment consists of two vertebral bodies, the intervertebral disc, and two facet joints. The intervertebral disc acts as the cushion, or “shock absorber,” of the spine. The intervertebral disc is made up mostly of water.
Why is there no disc between C1 and C2?
The intervertebral discs make up one fourth of the spinal column’s length. There are no discs between the Atlas (C1), Axis (C2), and Coccyx. Discs are not vascular and therefore depend on the end plates to diffuse needed nutrients. The cartilaginous layers of the end plates anchor the discs in place.
What is facet ligamentum flavum hypertrophy?
Ligamentum flavum hypertrophy is a condition in which the ligamentum flavum (LF) thickens due to stresses placed on the spine. With hypertrophy, ligamentum flavum (LF) increases in thickness (size). The thicker it becomes, the higher the risks of compressing the spinal cord or spinal nerves.
Which ligament fails in hyperflexion of spine?
The supraspinous ligament helps maintain the upright position of the head. It’s stretched in flexion, it`s fibers resist separation of spinous processes during forward flexion, during hyperflexion interspinous ligament and supraspinous ligament are the first to fail.
What transforms the spinal cord in vertebrates?
These are only found in the phylum Chordata, a group of animals that includes humans. Complete answer: The vertebral column develops from a flexible rod formed of a material similar to cartilage known as Notochord. They are present at the embryonic stage of vertebrates and then they transform to the vertebral column.
Which of the following flows through spinal canal?
For that reason, the spinal cord occupies only two-thirds of the vertebral canal. The inferior part of the vertebral canal is filled with cerebrospinal fluid (CSF) and the space is called the lumbar cistern.
