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RAD fun > MSK > Flashcards

MSK Flashcards

1
Q

tuft fracture type

A

open #

dont go to the OR. only ABx

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2
Q

healing time

A

6-8 wk av

phalanges: 3 wk
tibia: 2-3mo

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3
Q

delayed union

A

2X as long as expected

RF: CKd, PTH, NSAID, smoking, gastric bypass, IBD

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4
Q

non union

A

6-9 mo.

scaphiod. ant tibia. lat fem neck.

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5
Q

poor union

A

poor anatomic position

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6
Q

MCC of stress # in young ppl

A

postmedial tibia

compressive

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7
Q

spontaneous osteonecrosis of the knee SONK ass w/

A

M. condyle
subchondral insuff. #
unilat
meniscal injury

young pt post meniscal Sx.

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8
Q

navicular stress #

A

runner

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9
Q

march #

A

metatarsal stress #. military

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10
Q

MCC os tarsal bone #

A

calcaneus

intra-articular > extra

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11
Q

High risk #

A 
femoral neck lat
TRV patella #
ant tibia
5th MTR
talus
navicular
sesamiod great toe
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12
Q

Low risk #

A 
med femoral neck
long patella
post med tibia
2nd, 3rd MTC
calcanus
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13
Q

MCL of schap fracture

A

waist

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14
Q

MC imp SL lig

A

dorsal.

vs luno-triq» volar

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15
Q

Presiser diz

A

atraumatic AVN of scaph

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16
Q

OS Pz worst to best

A

2ry OS > IM > telengactastic > periosteal > para

best Px: para
peri: distal medial fem, diaph

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17
Q

DISI

A

radial side injury > SL lig injury > MCO
doriflexion of the lunate. volar flex of the scaphiod
angle > 60

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18
Q

VISI pattern

A

ulnar side injury > LT lig injury
volar flex of both lunate + scaph
angle < 30

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19
Q

which synovial space can communicate in the wrist

A

pisiform and RC space.&raquo_space; site of arthrogram

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20
Q

which side heals in TFC inj

A

ulnar side > vascular

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21
Q

both smith and colle’s ass w/

A

ulnar styloid #

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22
Q

BArton’s #

A

IA#. volar ang > Sx.

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23
Q

penetrating tenosynovitis of the flexor tendon MX

A

SX ER. high risk of spread to flex tendons of the hand .

Myocobact marinium&raquo_space; fishmen and azumi chef

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24
Q

intersection syn

A

ECRL and ECRB Tenosyn

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25
Q

Trigger finger

A

stenosing tenosynovitis involving the flexor digitorum superficialis at the level of the A1 pulley.
repetitive microinjury

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26
Q

Essex lopresti

A

unstable #
rad head #.
ant dis of distal RUJ
sep of the IO mem

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27
Q

MCC of cubital tunnel syn

A

rep valg

ancounus

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28
Q

lat epicondylitis

A

ECRB. varus injury. RCL lig

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29
Q

Med epicondylitis

A

golfer. flexor tendon.

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30
Q

partial UCL team

A

throwers.
T sign.
ant band of the UCL is the MIO

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31
Q

b/l bursitis

A

RA.

Gout

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32
Q

little leaguer’s elbow

A

Med epi. avulsion injury

cap OCD

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33
Q

least tendon to tupture

A

tricepis

ass w/ SH II of the olecronon

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34
Q

looser’s zone

A 
band of lucency peripen to the cortex. 
fem neck. pubic rami > insuff #.
rickets
osteomalcia
OI
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35
Q

Transient osteoporosis of the hip

A

preg, 3rd tri, LT
more common in men&raquo_space; b/l

In uptake in BS

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36
Q

Reginal migratory OP

A

more common in men

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37
Q

Panner’s diz

A

osteochondrosis of the capitellum. the entire cap is affected

It should be distinguished from osteochondritis dissecans of the elbow which also affects the capitellum.

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38
Q

freiberg disease

A

AVN of 2nd MT head

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39
Q

Sever’s diz

A

calcanea apophysitis

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40
Q

MC Sp sign of active Ch.OM

A

Sequestrum

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41
Q

acute OM in neonate BS

A

-ve BS.

+ve joint involvement

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42
Q

Rice body

A

TB

end stage RA

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43
Q

TB dactylitis

A

diaphysial expansile lesion w/ STx swelling

look up pic

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44
Q

TB dactylitis

A

diaphysial expansile lesion w/ STx swelling

look up pic

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45
Q

MCC 1ry ca of the spine and sacrum

A

chordoma

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46
Q

MMC of maignant epiphseal lesion

A

clear cell chonsrosarc

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47
Q

Mzabruad syn

A

STx myxomas.
FD XXX
women
increase risk of malg degeneration

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48
Q

MC expansile rib lesions in adult

A

FD

2nd mmc rib lesion: enchondroma

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49
Q

mcc of bone cyst > 20 YO

A

calc

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50
Q

MM + sclerotic mets

A

POEMS

MM can be lytic, sclertotic or diffuse OP. they spare post. element !!!!1

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51
Q

liposclerosing myxofibroma

A

lytic lesion, sclerotic margin.
Strong predilection for intertrochanteric region
10% risk of malg. degen.

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52
Q

MCC of b9 bone tumor

A

osteochondroma.

the only B9 bone tumor induced by RTX

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53
Q

Dysplasia epiphysealis hemimelica = Trevor disease

A

is an extremely rare, non-hereditary disease that is characterized by osteochondromas arising from the epiphyses.

MCL: ankle, knee
Sx Rx

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54
Q

DDx of adamntinoma

A

osteofibrous dysplasia. look the same. cant tell on img

osteofibrous dysplasia : young pt

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55
Q

rotator cuff interval contains which lig

A
  1. long head of the biceps brachii
  2. the superior glenohumeral ligament.

This space is also bordered by the base of the coracoid process of the scapula and roofed by the coracohumeral ligament.

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56
Q

MCL of CH.OM

A

1st and 5th MT heads

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57
Q

earliest changes in septic arthritis

A

J eff

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58
Q

Paget

A 
ass w/ hyper PTH. GCT
spares the fibula even in diffuse diz 
involve the entire VB + post element
hot on all phases on BS
DDx; mastocytosis
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59
Q

H-shaped VB

A

SCA

Gaucher’s

60
Q

best seq to tell malg degeneration Paget’s active diz

A

T1 pre con. non FS. to eval BM

61
Q

MCC of hip snapping syn

A

external. iliotibial band over GR trochanter

62
Q

arcuate sign of the fibula as w/

A

PCL avulsion injury

63
Q

ANT. kissing contusion

A

edema in the ant tibia and femur > both in ACL and PCL tear. not the same as kissing contusion
hyperextension injury

64
Q

planter fibromastosis

A

it is B9 tum
men
could be b/l
variable T2 and T1 C+ SI

65
Q

MCL for bone harvesting

A

iliac crest >AI crest

66
Q

MCL of O.O

A

femur

67
Q

syn chondromatosis

A

low T1, high T2
C+ synv
bony erosions ++

68
Q

mcl of mets from chrondrosarcoma

A

lung

mcl of primary chondrosarc: hip = innominate bone

69
Q

MCL of extraosesous involvement of LCH

A

SKIN

70
Q

Gorham diz

A

progressive osteolysis of the bone.
vascular diz. ab lymphatic proliferation
Sp is involved

71
Q

chondromyxiod fibroma

A

rare, B9 tum.

eccentric, lytic, expansile geographic lesion

72
Q

mcc of mass in the wrist

A

gang cyst

2nd: GCT of the tendon sheeth

73
Q

Paraosteal vs periosteal sarcoma

A

para: distal femur. calc mass. mature calc, no IM extension, BM is invove
peri: diaph, cortical erosion, LYTIC, perios reaction. rare BM involvement

74
Q

PVNS

A

low on all seq

75
Q

lipoma arborsnese

A

frond like synv mass

synov chondromatosis: similar to bone/cartilage SI

76
Q

MFH

A

STx mass rather than bone lesion&raquo_space; no periosteal reaction

77
Q

Nodular facitis

A

rapidly growing B9 lesion along subcut/IM. mimic cancer
MCL: UE.
in children MCL > H&N

78
Q

solitary fibrous tumor paraneaplastic tum

A

HypoG

osteomalacia

79
Q
  1. Bx approach of medial tibial ?

2. Bx approach of prox humrus

A
  1. antmed tibia

2. lat to deltopectorial

80
Q

extra-abd fibromatosis ( demoid tum)

A

loc aggressive.
recurrance
invades formaen
Rx; Sx, CTX, RTX

81
Q

MCL of achilles tendon rupture

A

The watershed zone 2 cm to 6 cm above the calcaneal insertion is most commonly torn.

increase the risk of a tear: fluoroquinolone, rheumatoid arthritis, gout, hyperparathyroidism,

82
Q

bisphosphonate-related proximal femoral fractures loc

A

On nuclear medicine bone scan, increased osteoblastic activity is seen in the LAT proximal femur on technetium-99m bone scan.
IM nailing

83
Q

bizarre parosteal osteochondromatous proliferation (BPOP) = Nora lesion.

A

This is a benign lesion characterized by a well-marginated bony growth with a wide base and arises from the cortical bone. It lacks medullary continuity, unlike osteochondroma.

84
Q

Kohler disease in adult named ?

A

Mueller-Weiss syndrome is the adult equivalent of navicular osteonecrosis.

Kummell disease, osteonecrosis and collapse of a vertebral body are seen.

85
Q

most common type of congenital carpal coalition,

A

Lunotriquetral coalition

b/l

86
Q

giant cell tumors vs ABC

A

GCT: look at the nonsclerotic border. non FF in MRI. subarticular. mets to lung 4%
ABC: metaphyseal

87
Q

MC injury to the 5th metatarsal

A

1st: avulsion
2nd: jones
3rd: stress MT shaft

88
Q

reverse segond #

A

PCL

med Meniscus njury

89
Q

supinator syndrome

A
  • compression of the post. interos nerve at the sup ms.
  • denervation edema of the extensors, supinator ms that spare ECRL.
  • sensation is preservaed.
90
Q
  • jumper’s knee
A
  • prox. patella tendonapthy
91
Q

tennis leg

A

sudden poping sensation

med head of gastro rupture. plantaris ms rupture

92
Q

mallet finger = baseball finger

A

avulsion of the extensors at DIP results in hyperlfexion deformity

93
Q

MC ruptured quadriceps tendon

A

vastis intermedialis

94
Q

femur arhrogram injection site

A

sup and lat

95
Q

ACL tear

A

ant. transl of the TIBIA relative to the fem.findings seen in the med side of the knee.

pay attension to that the tibia dislocate relative to the femur

96
Q

unicompartmental arthroplasty

A

total arthroplasty, hemiarthroplasty, unicompartmental arthroplasty, constrained versus nonconstrained, reverse arthroplasty

97
Q

dynamic pelvic screw app

A

pic

98
Q

both C1 and C2 fracture can be stable if no

A

displacemnet or vessels compromose

99
Q

looser zones are

A

subtroch femur. pubic rami. ax margin of the scapula. prox. ulna.

100
Q

earliest finding of H. pTH

A

2nd, 3rd digits periosteal respor

101
Q

heel pad thickness in acromegaly

A

> 2.3 in male

> 2.15 in F

102
Q

thyroid acropathy

A
  • after Rx of graves
  • UE > LL
  • ## metacarpal bones > mcl.
103
Q

Hemophilia

A

J. destruction 2/2 synovitis and bony overgrowth.
DDx; RJA, TB, PVNS. pay attension to the the growth plate
mcl: knee, 2nd: elbow&raquo_space; radial head overgrowth.

104
Q

calc insuff # 2/2

A

D.M

105
Q

shoulder arthrogram injection site

A

Superior med humoral head

for CT arthrogram contrast ratio: 1:1 contrast: saline

106
Q

hip MRI arhtrogram injection dose

A

0.1-0.2 ml Gad

20 ml of iaodanted con, saline or anesthetic

107
Q

physiologic bowing of the radius and ulna in adult ass w/

A

negative ulnar variance but can be seen even without

108
Q

madelung deformity

A

short distal radius
ulnar tilt of the radius
idiopathic, turner, sk dysplasia or 2/2 tru

109
Q

mc S&S of bipartie patella

A

ant knee pain > T2 bone edema on MR

110
Q

patella nail synd

A

ADD
iliac horns
nail changes&raquo_space; mmc S,S
absent patella

111
Q

How to Dx discoid men

A

bowtie men in 3 or > slices in sag.
> 1.4 cm men in cor
males,
> lat men

112
Q

Juvenile OP

A

rare diffuse OP

resolves over time

113
Q

mc dens fracture

A

type II > non stable

type I and III > stable

114
Q

calc avulsion fracture

A

OP/Openia

DM

115
Q

mcl of OCD

A

lat aspect of med femoral condyl

116
Q

nail bed bleeding ass w/

A

distal SH fracture. at the site of nail insertion. it leaks to OM.

117
Q

yellow marrow conversion seq

A

1st: epi/apophysis
2nd: dia
3rd: meta

feet and hand 1st then&raquo_space; long bone

118
Q

ABC + frracture where ?

A

spine

119
Q

ABC Rx?

A

pre-op embolization

curtage

120
Q

bone forming arthritis DDx

A

reactive and psoriatic

121
Q

homolateral lisfrANC INJURY DEF

A

displacement of 1-5 MT laterally
or displacement only of the 2-5. the 1st remains in place

vs divergent: lat displacement of the 2-5 MTH and medial of the 1st

122
Q

neer test

A

acromial shoulder impingement

123
Q

psuedohypo PTH

A

high PTH.
high Po-4
low Ca

124
Q

spinal cord herniation

A

kincking the cord result in prox syrinx

125
Q

Mx of patella dislocation-relocation

A

50% rate of conservative Rx failure
so Sx Rx is curicial:
A- tibial tub osteotomy = transfer + Med PFL recons
or B_ Med PFL recons + lat PFL release&raquo_space; high rate of med patella disloca&raquo_space; iatrogenic
C- trochoplasty

126
Q

MCL of insuf fracture

A

1st med femoral condyle
2nd: tibial plat

Rx: conservative

127
Q

ostetitis pubis

A

non infectious inflam of the sym pubis. no resorption

128
Q

weakest lig of LCL of the foot

A

ATFL

LCL: ATFL. ant/post tibiofib lig

129
Q

why&raquo_space; limbus VB

A

nucluous pulposes herniates between ring apophysis and VB

130
Q

why skull develops normally in achondroplasia

A

bc AP affects only endochondrail ossification

131
Q

Rx of traumatic pseudomeningocele

A

conserv. physical Tx

132
Q

MC S&S of liposclerosing myxofiobroma

A

pain

b9

133
Q

bennet fracture vs. bennet lesion

A

fracture: thumb
lesion: hyperostosis of IGHL. thrower

134
Q

MC of bennet fracture vs ronaldo

A

bennet: con
ronaldo: Sx

135
Q

what is subungual exostosis ?

A

b9 osteo-cartilegnous tum. of distal phalenx.

136
Q

what is post hindfoort impingement?

A

lateral talar process edema and DJD changes 2/2 to acquired flat foot deformity in adult

137
Q

what do you do first for CL concerning OM

A

RG if + for OM > Rx no need for MR

if -ve&raquo_space; next MRI

138
Q

growth arrest/ growth recovery lines

A

horizontal lines vs straita&raquo_space; vertical

139
Q

MCC of PV thrombosis

A

cirrhosis

140
Q

Most SP sign of torsion

A

twisted pedicel

141
Q

positive nuchal lucency

A

> 3mm
11-14 wk
has to be measured in certified FM unit
Sp ass w/ labs > 90% but NT alone > 80%

142
Q

Rx of bisphonspnate related fracture

A

stop med
proph nailing
recominant PTH

143
Q

Mx of scaphiod fracture

A

nondisplaced, distal pole and tuburcle #&raquo_space; casting

displaced prox pole and waist&raquo_space;> Sx.

144
Q

How to tell med from lat on ax lnee MRI

A

lat: patella tubrcule is longer.

145
Q

mechanism of patella dislocation

A

twisting morion when the knee is valgus, flexed and internally rotated

146
Q

lace like phalanges

A

sarciodosis

B-thalasemia

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