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Diagnostic Imaging > elbow, hand, and wrist > Flashcards

elbow, hand, and wrist Flashcards

(49 cards)

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1
Q

best views for elbow

A

AP
lateral
oblique

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2
Q

best views for wrist/hand

A

PA
lateral
oblique

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3
Q

best view for radial head fractures

A

oblique, supination/ER

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4
Q

best view for coronoid process fractures

A

oblique, pronated/IR

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5
Q

most useful views for wrist fracture or dislocation

A

PA and lateral

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6
Q

what is ulnar/radial deviation in PA used for

A

used to find scaphoid fracture

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7
Q

best view for scaphoid lunate interval

A

AP w/ supinate clenched fist and ulnar deviation

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8
Q

hourglass sign

A

formed by anterior margin of olecranon fossa and posterior margin of coronoid fossa

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9
Q

radio-capitellar line

A

draw line thru middle proximal end of radius, should bisect capitellum in lateral and AP view

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10
Q

anterior humeral line

A

line should go down anterior humerus through middle third of capitellum

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11
Q

sail sign or fat pad sign

A

present in fracture of radial head or epicondyles

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12
Q

type 1 radial head fracture

A

fracture without dislocation

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13
Q

type 2 radial head fracture

A

partial intra-articular fracture with dislocation of >2mm

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14
Q

type 3 radial head fracture

A

comminuted fracture of the entire radial head

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15
Q

type 4 radial head fracture

A

fracture with dislocation of the elbow joint

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16
Q

why are children more prone to dislocation of the elbow

A

result of activities and immature bone structure

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17
Q

supracondylar fractures

A

common in children with a FOOSH injury

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18
Q

why is the radius more commonly fractured?

A

because of a FOOSH injury, we put more weight into the radius when we fall on our hand

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19
Q

what is volar tilt measurement used for

A

assessing outcomes
treatment outcomes
measuring frx displacement

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20
Q

colles fracture

Study These Flashcards
A

radial head fracture
silver fork or dinner fork deformity

21
Q

smiths fracture

Study These Flashcards
A

garden spade deformity
fracture of distal radius with volar angulation

22
Q

Kienbock’s disease

Study These Flashcards
A

softening of the lunate
associated with negative ulnar variance

23
Q

TFCC injury associated with

Study These Flashcards
A

colles fracture and positive ulnar variance

24
Q

terry thomas sign

Study These Flashcards
A

scaphoid-lunate dislocation
subluxation of scaphoid bone

25
negative ulnar variance associated with
keinbock and radial fracture
26
smith fracture associated with
volar angulation
27
colles fracture associated with
dorsal angulation
28
postive ulnar variance associated with
TFCC and colles
29
SLAC wrist
scapholunate advanced collapse secondary to chronic scaphoid wrist fracture
30
DISI
dorsal intercalated segment instability instability patter of the scapholunate joint caused by injury to ligament or scaphoid or kienbocks disease
31
scapholunate dissociation
signs: - scapholunate interval > 2-3mm (terry thomas sign) - cortical ring sign - scaphoid is foreshortened - negative ulnar variance
32
VISI
volar intercalated segment instability, decreased angle of lunate
33
hook of hamate fracture common in..
FOOSH, or athletes who hold tennis rackets/bats
34
septic arthritis will appear as...
cloudy and no arcuate lines on xray bone marrow edema and erosion in MRI
35
OA signs
Loss of joint space Osteophytes Subchondral sclerosis Subchondral cysts
36
RA signs
Loss of joint space Erosions Soft tissue healing Soft bones (osteopenia) ulnar drift and MCP enlargement
37
swan neck deformity
seen in RA DIP in flexion PIP in hyperextension
38
boutonniere deformity
can be seen in trauma, RA, or Ehlers Danlos Syndrome PIP in hyperflexion
39
DJD
degenerative joint disease, OA heberdens and bouchards nodes
40
Herberden's nodes
DIP joint deformity
41
Bouchard's nodes
PIP joint deformity
42
Psoariatic arthritis signs
pencil in a cup DIP joints mostly affected sausage digits scratches their head a lot
43
boxer's fracture
fracture of 5th metatarsal
44
bennett's fracture
fracture of the base of the thumb APL displaces
45
Rolando fracture
fracture like Bennett fracture but more intense
46
gamekeeper's thumb
damaged UCL of 1st MCP
47
Stener lesion
complete lesion to thumb UCL may cause adductor pollicis to be caught between UCL and MCP joint
48
mallet finger
object hits end of finger causing it to flex finger too far or too fast and extensor tendon tear can result
49
jersey finger
avulsion of FDP off of distal phalanx when hyperextended while fingers flexed

Diagnostic Imaging (4 decks)

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