Low Back Pathologies Flashcards

1
Q

characteristics of multiple myeloma

A

primary malignant tumor

in bone marrow

usually in older people

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2
Q

incidence of spinal metastases

A

most common spine tumors

2nd most serious spine pathology

most commonly in the vertebral body (usually anterior)

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3
Q

spine metastases are usually from what cancers

A

breast
lung
kidney
GI
thyroid

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4
Q

most common areas for metastasis

A

lung
liver
bone

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5
Q

spinal malignancy is usually in what region

A

thoracic

then lumbar

rarely cervical

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6
Q

pathogenesis of spine malignancy

A

healthy bone replaced by tumor

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7
Q

clinical manifestations fo spinal malignancy

A

severe spine pain
myelopathy S&S
bony alterations
cancer S&S

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8
Q

what vertebral segment is aligned with the end of the spinal cord

A

L1-L2

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9
Q

etiology of lumbar spinal cord myelopathy

A

most common = b/c of degenerative changes
malignancy = 20%
rare central disc herniation

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10
Q

how can degenerative changes cause myelopathy

A

lax/buckling of ligamentum flavum

ARDC/ARJC with arthritis/herniation

vertebral body collapse/fx

pathological instability

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11
Q

specific S&S of lumbar SC myelopathy

A

extreme spine pain
mechanical reproduction
multi segment nukmbness/weakness
spastic/retentive bladder
hyperactive DTRs
+ UMN tests
hypoactive superficial reflexes

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12
Q

what is cauda equina syndrome

A

compression to some degree on one of the 20 soinal nn that originate from the end of the spinal cord or conus medullaris

can be acute or chronic

below L1/L2 segment

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13
Q

prevalence of cauda equina

A

rare

2% of lumbar ARDC

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14
Q

etiology of cauda equina syndrome

A

1 = mid to lower lumbar ARDC

2= degenerative spinal changes/malignancy

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15
Q

risk factors for cauda equina syndrome

A

mid to lower lumbar:
-persistent IDD, central > postlat
-central stenosis
-surgery

over 50

obesity

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16
Q

Hx indicating cauda equina

A

LBP
bowel/bladder incontinence
sex dysfunction
cancer S&S possible

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17
Q

S&S of cauda equina

A

respective S&S of contributing degenerative conditions

unilateral and bilateral patchy neuro S&S
-paraesthesias in multiple derms
-multiple myotome weakness
-hypoactive DTR
-+dural mobility
-progressive/alternating findings due to SC movement

18
Q

PT implications for cauda equina

A

likely emergency

19
Q

what is osteomyelitis

A

bone infection

20
Q

what is discitis

A

disc infection

21
Q

incidence of spinal infection

A

uncommon in wealthier countries

discitis more common in lumbar

22
Q

etiology of spinal infection

A

primarily from mycobacterium TB

staphylococcus aureus and brucella are also involved at times

23
Q

risk factors for spinal infection

A

immunosupression
surgey
IV drug use
social depravation
Hx of TB or other recent infections

24
Q

pathogenesis of spinal infection

A

develops 2-3 years after initial droplet of infection into lungs

spreads via lymph/blood

infection spreads to disc more common in lumbar

abscess grows and causes n root irritation, vertebral body collapse, and cord compression

25
Q

clinical manifestations of spinal infection

A

mechanical/progressive spine pain

+ stress test for disc/vertebral body

infection S&S (especially fatigue/fever that started w/ back pain)

unexplained weight loss

TTP

LE and bowel/bladder neuro S&S if untreated

26
Q

referral for spinal infection

A

urgent unless cord/cauda equina S&S then emergency

27
Q

what imaging is good for spinal infection

A

if b/c of TB = x-ray

MRI = image of choice otherwise; can see infection 3-5 days after onset

28
Q

what do blood tests test for with spinal infections

A

not diagnostic
inflammatory markers like RBC anf C reactive proteins are better indicators of infection than WBC

presence of normal WBC does not exclude a spinal infection

29
Q

what is ankylosing spondylitis

A

type of spondyloarthropathy or spondyloarthritide

30
Q

etiology of ankylosing spondylitis

A

genetics = 90% + for HLA-B27 antigen on blood test

environmental

31
Q

incidence/prevalence of ankylosing spondylitis

A

almost as common as RA
males between 15-30 years = most common
usually in lumbosacral region

32
Q

pathogenesis of ankylosis spondylitis

A

chronic inflammation of cartilage, tendon, ligament, and synovium attachments to bone

erosive osteopenia and bony overgrowth

leads to fusion of involved joints

33
Q

common features of spondyloarthropathies or spondyloarthritides

A

autoimmune S&S
multi joint pain/inflammation
familial predisposition
extraarticular involvement of eyes, skin, GI tract, and renal/cardiac systems

“hurts to see, pee, and bend my knees”

34
Q

describe the multijoint inflammation/pain associated with spodyloartropathoes or spondyloarthritides

A

> 30 min pain/stiffness after prolonged position

pain imporves with movement

chronic inflammation of axial skeleton

asymmetric/unilateral extremity involvement to a lesser degree
-localized to entheses

35
Q

common Hx of those with ankylosing spondylitis

A

progressive LBP
onset < 40 years
lasting more than 3 months
no change with rest
night pain from static posiiton
butt/hip pain

36
Q

obervation of those with ankylosing spondylitis

A

hyperkyphosis

loss of lumbar lordosis

37
Q

scan findings for ankylosing spondylitis

A

multi directions of limited motion of involved joints
combined motion = consistent
stress test = pain with prolonged holds

38
Q

biomechanical scan findings for ankylosing spondylitis

A

multi direction hypomobile accessory motion

limited thorax excursion with manubrial and rib springs (could compromise breathing)

39
Q

referral for ankylosing spondylitis

A

urgent referral to rhematologist

40
Q

Rx for ankylosing spondylitis

A

be sensitive to trauma

fall prevention

gentle ROM and exercise considering fragility

postural edu

**all would also help with bone pathologies like osteoporosis, osteomalacia, etc

41
Q

complications of ankylosing spondylitis may lead to

A

osteoporosis

fxs

CV sublux

stenosis

fusing in certain positions

extraarticular conditions like IBS or uveitis

cardiopulmonary disorders