Posterior Longitudinal Ligament (P.L.L.)

Question 1

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

Answer 1

The perivertebral ligament

Question 2

What is the function of the posterior longitudinal ligament?

Answer 2

It brakes or limits flexion of the vertebral column

Question 3

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

Answer 3

The cervical spine with an 80% Incidence

Question 4

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

Answer 4

A loss of hand and finger dexterity

Question 5

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

Answer 5

faltering gait

Question 6

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

Answer 6

It is greater in males over 50 years old

& has a higher incidence in the Japanese