Day 6 (pg 161) Flashcards
What is the earliest indicator of the position of the adult intervertebral disc?
the intrasclerotomal fissure or fissure of von Ebner
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 Disease
What is ossification of the anterior longitudinal ligament in the lumbar region now identified as?
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 ligament 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 breaks 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
