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1
Q

causes of distal clavicular osteolysis

A

Hyperparathyroidism, Cleidocranial dysostosis, Pyknodysostosis, Rheumatoid Arthritis, Trauma, Scleroderma

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2
Q

lucent lesions that cause adjacent sclerosis (“bone irritating lesions”)

A

osteoid osteoma, chondroblastoma, eosinophilic granuloma, infection

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3
Q

causes of avascular necrosis

A

alcoholism, steroids/SLE/sickle cell, Gaucher’s, pancreatitis, trauma, infection/idiopathic, caisson disease

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4
Q

Bohler angle less than what indicates calcaneal fx?

A

20 degrees

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5
Q

patellar tendon-lateral femoral condyle friction syndrome is associated with?

A
  • patella alta - lateral patellar subluxation
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6
Q

patellar tendon-lateral femoral condyle friction syndrome is also called

A

Hoffa fat pad impingement syndrome

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7
Q

normal Insall-Salvati ratio

A

< 1.2

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8
Q

what attaches as conjoined tendon on fibula?

A

biceps femoris AND lateral collateral ligament

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9
Q

what attaches with the posterior fibers of the IT band on the lateral proximal tibia?

A

anterior oblique band of LCL

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10
Q

sign?

dx?

A
  • yo-yo on a string
  • Stener lesion
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11
Q

MC type of acetabular fx

A

posterior wall

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12
Q

what kind of shoulder dislocation is MC?

A

anterior inferior (subcoracoid)

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13
Q

Hill-Sachs is best seen on which view?

A

internal rotation

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14
Q

Bankart is on which part of glenoid/labrum?

A

anterior inferior

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15
Q
A

proximal tear of ulnar collateral ligament (UCL)

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16
Q

which is most important band of UCL?

A

anterior

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17
Q

when does UCL get torn?

A

valgus stress (pitchers)

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18
Q

what is it and MC Location

A
  • bipartite patella
  • superolateral
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19
Q

rupture of which tendon can lead to flatfoot?

A

tibialis posterior

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20
Q

soft tissue mass in foot

A

synovial sarcoma

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21
Q

age for synovial sarcoma

A

20-40 yo

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22
Q

x-18 translocation

A

synovial sarcoma

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23
Q

Baker’s cysts are located where

A

between medial head of gastroc and semimembranosus

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24
Q

synovial sarcoma signs

A
  • triple sign
  • bowl of grapes
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25
synovial sarcoma "bowl of grapes" and "triple sign" (H, I, L meaning areas of high, intermediate, and low intensity)
26
in Stener lesion, what is superficial to what?
UCL is superficial to adductor pollicis aponeurosis
27
pull of what ligament causes triquetral avulsion?
radiocarpal ligament
28
liposarcoma variant in patient \< 20 yo and MR imaging characteristics
- **myxoid** liposarcoma - T1 ***dark***, T2 _bright_
29
clubfoot
- elevated plantar arch - hindfoot varus - medial deviation and inversion of forefoot
30
which angle is decreased in hindfoot varus ?
talocalcaneal angle
31
rocker bottom foot
- hindfoot valgus - vertical talus
32
rocker bottom foot association
myelomeningocele
33
signs of talocalcaneal coalition
- continuous C - talar beak
34
talocalcaneal (subtalar) coalition involves which facet?
middle facet
35
anteater sign is what? seen in which coalition?
- elongated anterior process of calcaneus - calcaneonavicular
36
what causes continuos C sign?
absent middle facet of subtalar joint
37
SLAP
38
MC peds elbow fractures
supracondylar \> lateral condyle \> medial epicondyle
39
little league elbow
medial epicondyle avulsion
40
conjoint tendon at fibular head formed by what?
biceps femoris + LCL
41
parameniscal cysts seen on which side?
lateral meniscus
42
discoid meniscus side
lateral meniscus
43
medial meniscus is thicker on which side?
posterior
44
tennis elbow
lateral epidondylitis
45
MC structure to be injured in lateral epicondylitis
common extensor tendon (MC muscle - extensor carpi radialis brevis)
46
rotator interval
47
what insert on Gerdy's tubercle
- IT band - tibialis anterior
48
Gerdy's tubercle
lateral condyle of proximal tibia
49
where are 1st manifestations of AS?
SI joints
50
SIJ erosions of AS favor which side?
iliac
51
DDx of calcaneal erosions
reactive arthritis, RA
52
Felty syndrome
- RA - splenomegaly - neutropenia
53
accessory navicular can cause chronic tearing of which tendon
tibialis posterior tendon
54
which synovial spaces normally communicate?
pisiform recess and radiocarpal joint
55
finding and association
Freiberg infraction high-heeled shoes
56
ALPSA
anterior labral periosteal sleeve avulsion
57
GLAD
glenolarbral articular disruption
58
MC location of subchondral insufficiency fx in knee
medial femoral condyle
59
T-score in osteoporosis
\< -2.5
60
T-score in osteopenia
-1.0 to -2.5
61
factors predisposing to patellar instability
- patella alta - trochlear dysplasia - lateralization of tibial tuberostity
62
ALPSA
63
pivot shift reciprocal contusions
posterior lateral tibial plateau + anterior lateral femoral condyle
64
what structure? what attaches here?
AIIS rectus femoris
65
grade 2 AC separation
AC interval \> 6 mm, CC interval normal
66
grade 3 AC separation
disruption of AC + CC AND superior dislocation of clavicle
67
grade 4 AC separation
posterior displacement of clavicle
68
intraosseous lipoma
69
rocker bottom
70
clubfoot
71
posterior ankle impingement
os trigonum syndrome
72
MC soft tissue tumors of hand
1. ganglion cyst 2. GCT of tendon sheath (PVNS)
73
MR signal characteristics of GCT of tendon sheath
T1 dark, T2 dark
74
location of sublabral recess follows contour of what?
12 o'clock glenoid
75
Bankart is where on glenoid?
anterior inferior

CORE MSK (21 decks)

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