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COMLEX 3 > MSK > Flashcards

MSK Flashcards

1
Q

DeQuervain’s tenosynovitis –> what tendons are affected?

A
  • abductor pollicis longus

- extensor pollicis brevis

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2
Q

Ca: normal
Phos: normal
alk phos: normal
PTH: normal

what condition?

A
  • normal

- osteoporosis

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3
Q

Ca: normal
Phos: normal
alk phos: elevated
PTH: normal

what condition?

A
  • osteopetrosis

- Paget’s disease

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4
Q

Ca: decreased
Phos: decreased
alk phos: normal
PTH: increased

what condition?

A
  • osteomalacia

- rickets

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5
Q

Ca: elevated
Phos: decreased
alk phos: elevated
PTH: elevated

what condition?

A
  • osteitis fibrosis cystica

- parathyroidism

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6
Q

osteomalacia –> pathophys

A

inadeq Ca and phos –> defective bone mineralization –> bones soften –> bow

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7
Q

osteomalacia –> MCC

A

vitD3 def –> decreased Ca absorption

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8
Q

osteomalacia –> pathognomonic finding on imaging

A

pseudofractures (aka Looser’s zone, milkman’s fx)

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9
Q

Paget’s dz –> pathognomonic finding on imaging

A

“mosaic” lamellar bone pattern

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10
Q

Paget’s dz –> increased risk for what conditoin?

A

osteosarcoma

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11
Q

hyperPTH –> presentation

A
  • stones
  • bones
  • abd groans
  • psych overtones
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12
Q

slipped capital femoral epiphysis –> emergent consult to ortho is necessary

T/F

A

T

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13
Q

slipped capital femoral epiphysis –> emergent consult to ortho is necessary –> why?

A

75% risk of avascular necrosis of femoral head after 48hr

ortho –> emergent fixation of slipped femoral head –> dramatically decrease risk of necrosis

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14
Q

Bench pressing  feel “pop” in anterior shoulder  what 2 tendons attach to anterior shoulder that could have been injured?

A
  • Biceps

- Pectoralis major

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15
Q

Bench pressing  feel “pop” in anterior shoulder  what muscle was injured?

A

Pectoralis major

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16
Q

Bench pressing  feel “pop” in anterior shoulder  injured pectoralis major muscle  at what stage of bench press is pec major tendon at greatest risk of rupture?

A

During downward motion toward chest

17
Q

Bench pressing  feel “pop” in anterior shoulder  injured pectoralis major muscle  during downward motion toward chest

What kind of contraction? Why?

A

Eccentric: muscle lengthen under tension

Bc force of weight is greater than force generated by muscle

18
Q

cannot spread fingers, atrophy of hypothenar eminence

condition?

A

ulnar nerve entrapment at Guyon’s canal (wrist)

19
Q

cannot spread fingers, atrophy of hypothenar eminence, impaired 4th-5th digit flexion

condition?

A

ulnar entrapment at cubital tunnel (elbow)

20
Q

differentiate: nutritional rickets vs X-linked hypophosphatemic rickets

A

nutritional rickets:
- elevated PTH

hypophosphatemic rickets:
- normal PTH

21
Q

nutritional rickets: lab findings

  • Ca
  • Phos
  • Alk Phos
  • PTH
A
  • Ca: decreased-normal
  • Phos: decreased-normal
  • Alk Phos: mild-mod increase
  • PTH: increase
22
Q

what is Thompson test (Simmond’s test)

A

test for rupture of achilles tendon

normal:
prone –> squeeze calf –> foot should plantarflex

23
Q

10M –> c/o LBP for months –> MRI shows thoracic kyphosis

dx?

A

Scheuermann’s disease (juvenile kyphosis)

24
Q

LE dermatomes

A

L3: knee
L4: medial leg
L5: big toe
S1: lat leg

25
Q

UE dermatomes

A 
C4: shoulder
C5: dorsal arm
C6: thumb
C7: middle 
C8: pinkie
26
Q

femoral neck fracture –> what blood vessel supplies this area?

A

medial & lateral femoral circumflex artery

27
Q

dorsiflex foot –> calf pain

what test? indicates what?

A

Homan’s sign

DVT

28
Q

arm flex 90 –> forcible internal rotate

what test? indicates what?

A

Hawkin’s test

  • subacromial impingement
  • rotator cuff tendinitis
29
Q

stabilize scapula –> int rot so thumb points down –> flex arm

what test? indicates what?

A

Neer’s test

  • subacromial impingement
30
Q

flex shoulder, extend elbow, supinate –> flex shoulder against resistance

what test? indicates what?

A

Speed’s test

bicipital tendinitis

31
Q

flex elbow to 90 –> physician pull down elbow, supinate –> patient resist supination

what test? indicates what?

A

Yergason’s test

bicipital tendinitis

32
Q

differentiate: Boston brace vs Milwaukee brace

A

Boston brace:

  • for lower dysfx: thoraco-lumbar-sacral
  • sits under axilla

Milwaukee brace:

  • for higher dysfx: cervico-thoraco-lumbar
  • goes from skull to sacrum
33
Q

biceps –> N

A

musculocutaneous N

34
Q

elbow pain –> worse w resisted wrist extension

dx?

A

lateral epicondylitis

35
Q

olecranon bursitis –> pain where?

A

posterior elbow

36
Q

lateral epicondylitis –> injury to what muscle/tendon?

A

extensor carpi radialis brevis

37
Q

supraspinatus –> nerve?

A

suprascapular N

38
Q

what is cozen’s sign? indicates what?

A

ulnar deviate –> difficulty w wrist extension

==> lateral epicondylitis

COMLEX 3 (17 decks)

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