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L&D > MSK imaging > Flashcards

MSK imaging Flashcards

1
Q

which 2 types of fractures are most common in peds?

A

torus, greenstick

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2
Q

what causes a torus aka buckle fracture?

A

axial loading/compression

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3
Q

valgus

A

distal part of the bone is more lateral than it should be

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4
Q

what does SALTR used for? stand for?

A

pediatric fractures. straight, above, lower, transverse, rammed

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5
Q

which Salter-Harris types usually happen to age 10+?

A

type 2 and 3

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6
Q

what fracture is common in high impact sports when people put their wrist out to break their fall?

A

Colles fracture

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7
Q

describe a Colles fracture

A

Fracture of the distal radial metaphyseal region
Dorsal angulation and impaction
No involvement of articular surface

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8
Q

type of splint for colles fracture post-reduction

A

sugar-tong splint (prevents pronation and supination)

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9
Q

how is Barton’s different from Colles fracture?

A

Bartons involves the articular surface, is often ASW dislocation of the radiocarpal joint, and extends throught the dorsal aspect of the distal radius but NOT the palmar

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10
Q

what normally causes Smith’s fracture?

A

fall on a flexed wrist or direct blow

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11
Q

Galeazzi fracture

A

Distal/mid radius fracture with dislocation of the radioulnar joint
Reqs xray of wrist and forearm to see it

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12
Q

what is the opposite of a Galeazzi fracture?

A

Monteggia. Fracture of the ulnar shaft w/ dislocation of radial head

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13
Q

most common carpal bone fracture

A

scaphoid

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14
Q

snuffbox tenderness, Terry Thomas aka Madonna sign (Scapholunate dislocation (widening between the schpaoid and lunate)

A

scaphoid fracture

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15
Q

splint for scaphoid fracture

A

thumb spica splint

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16
Q

Weber classification is for what?

A

lateral malleolar fracture

17
Q

weber fracture class C

A

always unstable
Often with medial malleolus fracture
Syndesmotic ligament disruption
Deltoid ligament injury

18
Q

Distal tibiofibular syndesmosis disruption
Associated medial malleolar fracture, medial collateral ligament rupture, and proximal fibular fracture
High Weber C, unstable ankle joint
Traumatic external rotation
Complex, unstable

A

Maisonneuve Fracture

19
Q

Distal tibia fracture
Compression injury
Related to a fall from a height
Check for associated talar or calcaneal fracture

A

Pilon fracture

20
Q

of degrees in Bohler’s angle in calcaneal fracture

A

<20 degrees

21
Q

posterior fat pad sign and sail sign are ASW what fracture?

A

supracondylar

22
Q

sail sign but no visible fracture: how to treat it?

A

treat it like a fracture

23
Q

95% of shoulder dislocations

A

anterior

24
Q

3 xray view for shoulder dislocation

A

AP, oblique, Y view

25
Q

2 views needed for clavicle fracture xrays

A

AP, cephalic tilt (45 degrees)

26
Q

which 2 of the 5 types of clavicle fractures need surgery?

A

types 2 and 5

27
Q

how to rule in/out an occult hip fracture

A

MRI (emergently or urgently)

28
Q

imaging for necrotising fasciitis

A

CT w/ contrast (venous)

29
Q

which imaging:
Facial fractures
Vertebral fractures (first line)
Occult pelvic/sacral fractures
Multiple rib fractures on x-ray/occult rib fractures
Pre-operative planning (gives better detail of bony anatomy)
Complex fractures: tibial plateau fractures (prox tibia), pelvic/sacral fractures, etc

A

CT w/o contrast

30
Q

what imaging:
Peripheral arterial disease/arterial occlusion
Arterial dissection

A

CT angiography of the extremities

31
Q

what imaging: Foreign body localization (esp if not metal/bone that would show on xray)
Superficial abscess detection and drainage

A

US

32
Q

Pt had fall, neg xray but trouble bearing weight. what next?

A

get MRI

33
Q

what imaging?
Malignancy/mass
Infection

A

MRi w and w/o contrast

34
Q

what imaging for an “overview” of metastatic skeletal lesions , as opposed to MRI for specific lesions/masses?

A

bone PET scan

35
Q

which tests are ok for unstable trauma pt?

A

E-FAST exam (abdomen and chest US)

bedside xray

36
Q

when to order Ct w/ contrast for stable trauma pt? (what areas)

A

chest, abdomen/pelvis

L&D (6 decks)

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