Posterior Longitudinal Ligament

Question 1

newer research suggests what regional variation in the posterior longitudinal ligament?

Answer 1

prominent in the cervicals, occasional in the thoracics, rare in the lumbars

Question 2

what is the relationship of the posterior longitudinal ligament to the vertebral foramen?

Answer 2

it forms the anterior boundary of the spinal canal

Question 3

what is the innermost layer of the posterior longitudinal ligament called?

Answer 3

perivertebral ligament

Question 4

what is the function of the posterior longitudinal ligament?

Answer 4

it brakes or limits flexion of the vertebral column

Question 5

where is ossification of the posterior longitudinal ligament most commonly identified?

Answer 5

the cervical spine with an 80% incidence

Question 6

what is the clinical sign of posterior longitudinal ligament ossification in the cervical spine?

Answer 6

a loss of hand and finger dexterity

Question 7

what is the clinical sign of posterior longitudinal ligament ossification in the lumbar spine?

Answer 7

faltering gait

Question 8

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

Answer 8

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