PLL and ALL

Question 1

vertebral levels that the ALL attaches to

Answer 1

between occiput and S3 inclusive are traditionally indicated

Question 2

lowest extent of the ALL based on recent studies

Answer 2

L3

Question 3

believed to form the ALL in the lumbar spine

Answer 3

tendon of the crura of the diaphragm

Question 4

innervates the ALL

Answer 4

anterior neural plexus formed by fibers from the ventral primary ramus and sympathetic postganglionic fibers from the paravertebral ganglia

Question 5

function of the ALL

Answer 5

brakes or limits dorsi-flexion or hyperextension of the vertebral column

Question 6

ossification of the ALL in the lumbar region is called what

Answer 6

Forestiers’s disease

Question 7

ossification of ALL in the lumbar region is NOW called what

Answer 7

DISH

diffuse idiopathic skeletal hyperostosis

Question 8

classification of the PLL - vertebral body joint

Answer 8

fibrous (amphiarthrosis) syndesmosis

Question 9

vertebral levels the PLL will attach to

Answer 9

those b/w C2 and S3 inclusive are traditionally indicated

Question 10

PLL will attach to what in addition to vertebral bodies

Answer 10

intervertebral disc

Question 11

newer research suggests what regional variation in the PLL to the vertebral foramen

Answer 11

forms the anterior boundary of the spinal canal

Question 12

appearance of the PLL along the cervical spine

Answer 12

parallel along its lateral margins

Question 13

appearance of the PLL in the lumbar spine

Answer 13

hourglass shaped along its lateral margins

Question 14

innermost layer of the PLL is called

Answer 14

perivertebral ligament

Question 15

innervates the PLL

Answer 15

posterior neural plexus formed by fibers from the recurrent meningeal nerve/sinus vertebral nerve/sinu-vertebral nerve

Question 16

function of the PLL

Answer 16

brakes or limits flexion of the vertebral column

Question 17

ossification of the PLL is most commonly where

Answer 17

cervical spine with 80% incidence

Question 18

clinical sign of PLL ossification in the cervical spine

Answer 18

loss of hand and finger dexterity

Question 19

clinical sign of PLL ossification in the lumbar spine

Answer 19

faltering gait

Question 20

gender, age, and ethnic bias associated with ossification of the PLL

Answer 20

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

Question 21

at one time ossification of the PLL was an example of what condition

Answer 21

DISH