ALL and PLL

Question 1

What was ossification of the anterior longitudinal ligament in the lumbar region identified as

Answer 1

Forestier’s Disease

Question 2

What is ossification of the anterior longitudinal ligament in the lumbar region now identified as

Answer 2

DISH diffuse idiopathic skeletel hyperostosis

Question 3

What is hyperostosis

Answer 3

a greater than necessary ossification of the bone at a site of ligament attachment

Question 4

Where is ossification of the posterior longitudinal ligament most commonly identified

Answer 4

the cervical spine 80% incidnece

Question 5

what is the gender age and ethnic bias associated with ossification of the posterior longitudinal ligament

Answer 5

it is greater in males over 50 and has a higher incidence in the japanese

Question 6

What is the name given to the ligamentum flavum based on appearance and histology

Answer 6

it is a yellow elastic ligament

Question 7

what fiers are most ligaments made of

Answer 7

collagen type 1 fibers which are whiteish

Question 8

what is the function of the ligamentum flavum

Answer 8

it brakes or limits flexion of the vertebral column

Question 9

what is now thought to be a major function of the ligamentum flavum

Answer 9

it is an early prime factor in extension of the vertebral column

Question 10

where is ossification of the ligamentum flavum most commonly identified

Answer 10

the thoracic spine or thoracolumbar transition zone