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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
Trigger finger
stenosing tenosynovitis involving the flexor digitorum superficialis at the level of the A1 pulley. repetitive microinjury
26
Essex lopresti
unstable # rad head #. ant dis of distal RUJ sep of the IO mem
27
MCC of cubital tunnel syn
rep valg | ancounus
28
lat epicondylitis
ECRB. varus injury. RCL lig
29
Med epicondylitis
golfer. flexor tendon.
30
partial UCL team
throwers. T sign. ant band of the UCL is the MIO
31
b/l bursitis
RA. | Gout
32
little leaguer's elbow
Med epi. avulsion injury | cap OCD
33
least tendon to tupture
tricepis | ass w/ SH II of the olecronon
34
looser's zone
``` band of lucency peripen to the cortex. fem neck. pubic rami > insuff #. rickets osteomalcia OI ```
35
Transient osteoporosis of the hip
preg, 3rd tri, LT more common in men >> b/l In uptake in BS
36
Reginal migratory OP
more common in men
37
Panner's diz
osteochondrosis of the capitellum. the entire cap is affected It should be distinguished from osteochondritis dissecans of the elbow which also affects the capitellum.
38
freiberg disease
AVN of 2nd MT head
39
Sever's diz
calcanea apophysitis
40
MC Sp sign of active Ch.OM
Sequestrum
41
acute OM in neonate BS
-ve BS. | +ve joint involvement
42
Rice body
TB | end stage RA
43
TB dactylitis
diaphysial expansile lesion w/ STx swelling look up pic
44
TB dactylitis
diaphysial expansile lesion w/ STx swelling look up pic
45
MCC 1ry ca of the spine and sacrum
chordoma
46
MMC of maignant epiphseal lesion
clear cell chonsrosarc
47
Mzabruad syn
STx myxomas. FD XXX women increase risk of malg degeneration
48
MC expansile rib lesions in adult
FD 2nd mmc rib lesion: enchondroma
49
mcc of bone cyst > 20 YO
calc
50
MM + sclerotic mets
POEMS MM can be lytic, sclertotic or diffuse OP. they spare post. element !!!!1
51
liposclerosing myxofibroma
lytic lesion, sclerotic margin. Strong predilection for intertrochanteric region 10% risk of malg. degen.
52
MCC of b9 bone tumor
osteochondroma. | the only B9 bone tumor induced by RTX
53
Dysplasia epiphysealis hemimelica = Trevor disease
is an extremely rare, non-hereditary disease that is characterized by osteochondromas arising from the epiphyses. MCL: ankle, knee Sx Rx
54
DDx of adamntinoma
osteofibrous dysplasia. look the same. cant tell on img osteofibrous dysplasia : young pt
55
rotator cuff interval contains which lig
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.
56
MCL of CH.OM
1st and 5th MT heads
57
earliest changes in septic arthritis
J eff
58
Paget
``` 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 ```
59
H-shaped VB
SCA | Gaucher's
60
best seq to tell malg degeneration Paget's active diz
T1 pre con. non FS. to eval BM
61
MCC of hip snapping syn
external. iliotibial band over GR trochanter
62
arcuate sign of the fibula as w/
PCL avulsion injury
63
ANT. kissing contusion
edema in the ant tibia and femur > both in ACL and PCL tear. not the same as kissing contusion hyperextension injury
64
planter fibromastosis
it is B9 tum men could be b/l variable T2 and T1 C+ SI
65
MCL for bone harvesting
iliac crest >AI crest
66
MCL of O.O
femur
67
syn chondromatosis
low T1, high T2 C+ synv bony erosions ++
68
mcl of mets from chrondrosarcoma
lung | mcl of primary chondrosarc: hip = innominate bone
69
MCL of extraosesous involvement of LCH
SKIN
70
Gorham diz
progressive osteolysis of the bone. vascular diz. ab lymphatic proliferation Sp is involved
71
chondromyxiod fibroma
rare, B9 tum. | eccentric, lytic, expansile geographic lesion
72
mcc of mass in the wrist
gang cyst | 2nd: GCT of the tendon sheeth
73
Paraosteal vs periosteal sarcoma
para: distal femur. calc mass. mature calc, no IM extension, BM is invove peri: diaph, cortical erosion, LYTIC, perios reaction. rare BM involvement
74
PVNS
low on all seq
75
lipoma arborsnese
frond like synv mass synov chondromatosis: similar to bone/cartilage SI
76
MFH
STx mass rather than bone lesion >> no periosteal reaction
77
Nodular facitis
rapidly growing B9 lesion along subcut/IM. mimic cancer MCL: UE. in children MCL > H&N
78
solitary fibrous tumor paraneaplastic tum
HypoG | osteomalacia
79
1. Bx approach of medial tibial ? | 2. Bx approach of prox humrus
1. antmed tibia | 2. lat to deltopectorial
80
extra-abd fibromatosis ( demoid tum)
loc aggressive. recurrance invades formaen Rx; Sx, CTX, RTX
81
MCL of achilles tendon rupture
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
bisphosphonate-related proximal femoral fractures loc
On nuclear medicine bone scan, increased osteoblastic activity is seen in the LAT proximal femur on technetium-99m bone scan. IM nailing
83
bizarre parosteal osteochondromatous proliferation (BPOP) = Nora lesion.
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
Kohler disease in adult named ?
Mueller-Weiss syndrome is the adult equivalent of navicular osteonecrosis. Kummell disease, osteonecrosis and collapse of a vertebral body are seen.
85
most common type of congenital carpal coalition,
Lunotriquetral coalition | b/l
86
giant cell tumors vs ABC
GCT: look at the nonsclerotic border. non FF in MRI. subarticular. mets to lung 4% ABC: metaphyseal
87
MC injury to the 5th metatarsal
1st: avulsion 2nd: jones 3rd: stress MT shaft
88
reverse segond #
PCL | med Meniscus njury
89
supinator syndrome
- compression of the post. interos nerve at the sup ms. - denervation edema of the extensors, supinator ms that spare ECRL. - sensation is preservaed.
90
- jumper's knee
- prox. patella tendonapthy
91
tennis leg
sudden poping sensation | med head of gastro rupture. plantaris ms rupture
92
mallet finger = baseball finger
avulsion of the extensors at DIP results in hyperlfexion deformity
93
MC ruptured quadriceps tendon
vastis intermedialis
94
femur arhrogram injection site
sup and lat
95
ACL tear
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
unicompartmental arthroplasty
total arthroplasty, hemiarthroplasty, unicompartmental arthroplasty, constrained versus nonconstrained, reverse arthroplasty
97
dynamic pelvic screw app
pic
98
both C1 and C2 fracture can be stable if no
displacemnet or vessels compromose
99
looser zones are
subtroch femur. pubic rami. ax margin of the scapula. prox. ulna.
100
earliest finding of H. pTH
2nd, 3rd digits periosteal respor
101
heel pad thickness in acromegaly
> 2.3 in male | > 2.15 in F
102
thyroid acropathy
- after Rx of graves - UE > LL - metacarpal bones > mcl. -
103
Hemophilia
J. destruction 2/2 synovitis and bony overgrowth. DDx; RJA, TB, PVNS. pay attension to the the growth plate mcl: knee, 2nd: elbow >> radial head overgrowth.
104
calc insuff # 2/2
D.M
105
shoulder arthrogram injection site
Superior med humoral head | for CT arthrogram contrast ratio: 1:1 contrast: saline
106
hip MRI arhtrogram injection dose
0.1-0.2 ml Gad | 20 ml of iaodanted con, saline or anesthetic
107
physiologic bowing of the radius and ulna in adult ass w/
negative ulnar variance but can be seen even without
108
madelung deformity
short distal radius ulnar tilt of the radius idiopathic, turner, sk dysplasia or 2/2 tru
109
mc S&S of bipartie patella
ant knee pain > T2 bone edema on MR
110
patella nail synd
ADD iliac horns nail changes >> mmc S,S absent patella
111
How to Dx discoid men
bowtie men in 3 or > slices in sag. > 1.4 cm men in cor males, > lat men
112
Juvenile OP
rare diffuse OP | resolves over time
113
mc dens fracture
type II > non stable | type I and III > stable
114
calc avulsion fracture
OP/Openia | DM
115
mcl of OCD
lat aspect of med femoral condyl
116
nail bed bleeding ass w/
distal SH fracture. at the site of nail insertion. it leaks to OM.
117
yellow marrow conversion seq
1st: epi/apophysis 2nd: dia 3rd: meta feet and hand 1st then >> long bone
118
ABC + frracture where ?
spine
119
ABC Rx?
pre-op embolization | curtage
120
bone forming arthritis DDx
reactive and psoriatic
121
homolateral lisfrANC INJURY DEF
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
neer test
acromial shoulder impingement
123
psuedohypo PTH
high PTH. high Po-4 low Ca
124
spinal cord herniation
kincking the cord result in prox syrinx
125
Mx of patella dislocation-relocation
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 >> high rate of med patella disloca >> iatrogenic C- trochoplasty
126
MCL of insuf fracture
1st med femoral condyle 2nd: tibial plat Rx: conservative
127
ostetitis pubis
non infectious inflam of the sym pubis. no resorption
128
weakest lig of LCL of the foot
ATFL LCL: ATFL. ant/post tibiofib lig
129
why >> limbus VB
nucluous pulposes herniates between ring apophysis and VB
130
why skull develops normally in achondroplasia
bc AP affects only endochondrail ossification
131
Rx of traumatic pseudomeningocele
conserv. physical Tx
132
MC S&S of liposclerosing myxofiobroma
pain | b9
133
bennet fracture vs. bennet lesion
fracture: thumb lesion: hyperostosis of IGHL. thrower
134
MC of bennet fracture vs ronaldo
bennet: con ronaldo: Sx
135
what is subungual exostosis ?
b9 osteo-cartilegnous tum. of distal phalenx.
136
what is post hindfoort impingement?
lateral talar process edema and DJD changes 2/2 to acquired flat foot deformity in adult
137
what do you do first for CL concerning OM
RG if + for OM > Rx no need for MR | if -ve >> next MRI
138
growth arrest/ growth recovery lines
horizontal lines vs straita >> vertical
139
MCC of PV thrombosis
cirrhosis
140
Most SP sign of torsion
twisted pedicel
141
positive nuchal lucency
> 3mm 11-14 wk has to be measured in certified FM unit Sp ass w/ labs > 90% but NT alone > 80%
142
Rx of bisphonspnate related fracture
stop med proph nailing recominant PTH
143
Mx of scaphiod fracture
nondisplaced, distal pole and tuburcle # >> casting displaced prox pole and waist >>> Sx.
144
How to tell med from lat on ax lnee MRI
lat: patella tubrcule is longer.
145
mechanism of patella dislocation
twisting morion when the knee is valgus, flexed and internally rotated
146
lace like phalanges
sarciodosis | B-thalasemia

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