Prolapsed Intervertebral Disc Flashcards
What type of joint is IV Disc
Secondary Cartilaginous
what is largest avascular structure in body
IV disc
fibres of annulus fibrosis run
obliquely
IV disc fails with what type of movement
twisting
nucleus pulposus consists mainly of
water 88%
disc prolapses are usually
postero-lateral
discs consist of
collagen and proteoglycans
what causes nerve root compression in iv discs
osteophytes
nerve root pain presentation
pain worse in limbs than back
cervical disc prolapse commonly where
c5/6
thoracic disc prolapses make up what percentage
<1% mostly at T11/T12
most common lumbar disc prolapse
L4/5 most posterolateral
nerve root of L5/S1 Disc
S1
nerve root of L4/5 disc
L5
nerve root of L3/4 Disc
L4
Disc L3/4 would give sensory loss to where
medial aspect low leg
Disc L4/5 would give sensory loss where
Great toe + 1st dorsal web space
Disc L5/S1 would give sensory loss where
Little toe + sole of foot
Disc L5/S1 would give motor weakness and reflex change where
plantar flex foot
ankle jerk
disc l3/4 would give motor weakness and reflex change where
Quads
Knee Jerk
disc l4/5 would give motor weakness where
EHL
