Ligaments Flashcards
What vertebral levels will the anterior longitudinal ligament attach to?
Those between occiput and S3 inclusive are traditionally indicated
What was ossification of the anterior longitudinal ligament in the lumbar region identified as?
Forestier’s Diesease
What is ossification of the anterior longitudinal ligament in the lumbar region now identified as (present)?
Diffuse Idiopathic Skeletal Hyperostosis or DISH
What is the innermost layer of the posterior longitudinal ligament called?
The perivertebral ligament
Where is ossification of the posterior longitudinal most commonly identified?
The cervical spine with an 80% incidence
What is the gender, age, and ethnic bias associated with ossification of the posterior longitudinal ligament?
It is greater in males over 50 and has a higher incidence in the Japanese
What is the acronym for ossification of the posterior longitudinal ligament?
OPLL
At one time ossification of the posterior longitudinal ligament was an example of what condition
Diffuse Idiopathic Skeletal Hyperostosis or DISH
In which region of the spine will the ligamentum flavum be paired?
The lumbar spine
What is the name given to the ligamentum flavum based on appearance and histology?
It is a yellow elastic ligament
What is the function of the ligamentum flavum?
It brakes or limits flexion of the vertebral column
What is now thought to be a major function of the ligamentum flavum?
It is an early prime factor in extension of the vertebral column
Where is ossification of the ligamentum flavum most commonly identified?
The thoracic spine or thoracolumbar transition zone
What regions of the vertebral column demonstrate the greatest laxity of capsular ligaments?
The cervical and lumbar regions
If the zygapophyseal capsular ligament is not significantly involved in restricting motion, what is its function?
It is probably involved in proprioceptive feedback to the muscles stabilizing the vertebral couple during movement
What are the names given to the superficial and deep layers of the ligamentum nuchae, respectively?
Funicular layer and lamellar layer
What are the attachment sites for the superficial layer of the ligamentum nuchae?
The external occipital protuberance, external occipital crest, the spinout tubercle of C7
What is the histological make-up of the human ligamentum nuchae?
It is a yellow elastic ligament, has more collagen fivers than in quadrupeds
What is the primary yellow elastic or elastic ligament of the spine?
The ligamentum flavum
What is the classic function of the human ligamentum nuchae?
It brakes or limits flexion of the cervical spine
What is the termination level inferiorly for the supraspinous ligament according to current literature?
Primarily at L4 (73%); between L4 and L5 (5%)
What forms the vertebral slip of the inter transverse ligament in the lumbar spine?
A membranous partition from the vertebral body covers the intervertebral foramen and extends back to the transverse process to form a ventral slip. IT is penetrated by the contents of the intervertebral foramen
What forms the dorsal slip of the inter transverse ligament in the lumbar spine?
A thick partition extends from the lamina and articular processes and extends laterally to blend with the ventral slip to form a septum separating the anterior muscles from the posterior muscles of the body wall
