Spine – Stenosis All Answers Correct
what is spinal stenosis ️narrowing of an opening, lumen, etc.
in the lumbar spine, what are the two kinds of stenosis ️central spine stenosis and lateral foraminal
stenosis
in the cervical spine, what are the two kinds of stenosis ️central spine ...
Spine – Stenosis All Answers Correct
what is spinal stenosis ✔️narrowing of an opening, lumen, etc.
in the lumbar spine, what are the two kinds of stenosis ✔️central spine stenosis and lateral foraminal
stenosis
in the cervical spine, what are the two kinds of stenosis ✔️central spine stenosis and myelopathy
lateral foramina stenosis
in the lumbar spine, what is the definition of central spine stenosis ✔️narrowing of the central canal,
placing pressure on the caudate equina
in the cervical spine, what is the definition of central spine stenosis ✔️narrowing of the central canal
placing pressure on the SPs causing myelopathy in the UE
what is myelopathy ✔️damage or disease of the SC due to pressure placed upon it
in the lumbar spine what is the definition of lateral foramina stenosis ✔️narrowing of lateral foramen,
placing pressure on one specific nerve root
how would you confirm that your pt has lateral foraminal stenosis compared to central spine stenosis
✔️LFS would follow dermatome/myotome pattern as it only compresses one specific nerve root
in the cervical spine, what is the definition of lateral foraminal stenosis ✔️narrowing of the lateral
foramen, placing pressure on the nerve roots causing radiculopathy in the UE
compare the ages of your typical stenosis pt, compared to a typical disc pt ✔️stenosis = older (65+)
, disc = younger (than 65)
if there is lateral foraminal stenosis impacting C5/6 level, what nerve is affected ✔️C6
t/f: stenosis is typically caused by degenerative changes that occur in the spine throughout the lifespan
✔️true
what is the process of degenerative changes in the spine that occur throughout the lifespan that lead to
stenosis ✔️aging results in loss of GAGs in the NP = loss of water = loss of nutrition = degeneration
interspinous space narrows, interdiscal space narrows
annulus bulges outward and reduces the size of central canal and lateral foramen
posterior elements can enlarge
lig flavus and posterior annulus thickens = narrows central canal
bony intrusion: top vertebra moves back and down overlapping posteriorly on the vertebra below it
*annulus buckles from the FRONT of canal
*lig flavum buckles from BACK of canal
what are the bosses and bars ✔️when there is a loss of disc height, the sharpey's fibers of the outer
annulus on the lower vertebra create bosses and bars when there is a large disc bulge
results in narrowing of foramen and retrolisthesis of superior vertebra
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