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Imaging > Lumbar Spine > Flashcards

Lumbar Spine Flashcards

1
Q

what can you see in a R & L posterior oblique projection

A

articulating processes
zygapophyseal joints
pars interarticularis
scotty dog

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2
Q

left posterior oblique has what z-joint facing

A

left downside

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3
Q

right anterior oblique has what z-joint facing

A

left upside

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4
Q

what is good to see for a coned lateral view L5-S1

A

3 parallel lines of vertebral bodies
disc spaces
lumbosacral angles

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5
Q

what are the lumbosacral angles seen in a coned lateral view L5-S1

A

barges
fergusons

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6
Q

AP axial of SIJs what can u see

A

articular surfaces superimposed
smooth osseous margins
symmetry SIJs
L5/S1
coccyx

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7
Q

basic protocol for CT

A

lower thoracic to SIJ or less
axial slices - reformatting to sagittal & coronal

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8
Q

what has high prevalence rates in asymptomatic populations

A

disc protrusion

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9
Q

what is reported in asymptomatic or symptomatic populations and considered an incidental finding

A

spondylolysis

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10
Q

what is indicated by a 3-4mm anterior slippage advocated as a threshold of instability

A

spondylolysthesis

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11
Q

suspected spine trauma

age > or = to 16
blunt trauma meeting criteria for thoracic and lumbar
initial image

A

CT

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12
Q

suspected spine trauma

age > or = to 16
acute thoracic or lumbar spine injury detected on x-ray or noncontrast CT
neurologic abnormalities
next image

A

MRI

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13
Q

suspected spine trauma - child

younger than 16, suspected thoracolumbar spine trauma
initial image

A

x-ray

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14
Q

LBP

acute LBP w/ or w/o radiculopathy
no red flags
no prior management
inital image

A

none

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15
Q

LBP

subacute or chronic LBP w/ or w/o radiculopathy
no red flags
no prior management
initial image

A

none

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16
Q

LBP

subacute or chronic LBP w/ or w/o radiculopathy
surgery or intervention candidate w/ persistent or progressive symptoms during or following 6wk of optimal medical management
inital image

A

MRI

17
Q

LBP

LBP w/ suspected cauda equina syndrome
initial image

A

MRI

18
Q

LBP

LBP w/ hx of prior lumbar surgery w/ or w/o radiculopathy
new or progressing symptoms or clinical findings
initial image

A

x-ray
MRI
CT

19
Q

LBP

LBP w/ or w/o radiculopathy
one or more of the following: low-velocity trauma, osteoporosis, elderly individual, chronic steroid use
inital image

A

x-ray
MRI
CT

20
Q

LBP

LBP w/ or w/o radiculopathy
one or more of the following: suspicion of cancer, infxn, immunosuppression
initial image

A

MRI

21
Q

back pain - child

w/ none of the following clinical red flags: constant pain, night pain, radicular pain, pain lasting >4wk, abnormal neurologic examination
initial image

A

none

22
Q

back pain - child

w/ 1 or more of the following: constant pain, night pain, radicular pain, pain lasting >4wk, abnormal neurologic examination
initial image

A

x-ray

Imaging (21 decks)

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