Diagnostic Imaging 2

Question 1

gout

Answer 1

males >40yo overprodution of uric acid
extremelly paiful, red, hot and swollen joints
usually mon-articular with the MC site at the MTP of the bg toe (podagra)
tophi cyrstal may be seen
overhanign margin, juxta-aritcular erosions

Question 2

CPPD

Answer 2

tin linear calcification parallel to articular cortex within the joint space
called chondrocalcinosis when affecting cartilage
MC seen in knee

Question 3

labs associated with gout

Answer 3

increased uric acid, +ESR

joint asprition

Question 4

pharmalology for gout

Answer 4

acute-colchicine, chronic allopurinol

Question 5

HADD

Answer 5

MC affects shoulder joint

round or oval calcifications near the inerrtion of a bursa or tendon

Question 6

septic arthritis

Answer 6

patient presents with fever, chills, possibly hisotry of trauma/surgery and a warm, tender, swollenjoint
WBC count

Question 7

AVN

Answer 7

major causee is trumano labs for AVN
all AVNs are self -resolving but takes 8months-2 years
all AVNs can lead to DJD
special tests: bone scan or MRI

Question 8

preiser’s

Answer 8

carpal scaphoid AVN

Question 9

scheuermann’s

Answer 9

vertebral end plate epiphysis AVN

MC 10-16yo, rounding of soulders, increased kyphosis, young patient with back pain

Question 10

legg calve perthes

Answer 10

femoral epiphysis AVN

Question 11

Kohler’s

Answer 11

tarsal navicular AVN

Question 12

keinboch’s

Answer 12

carpal lunate AVN

Question 13

sever’s

Answer 13

calcaneus AVN

Question 14

blount’s

Answer 14

medial tibial condyle AVN

Question 15

freiberg’s

Answer 15

head of 2nd or 3rd metatarsal AVN

Question 16

osteochondritis dessicans

Answer 16

articular surface of medial femoral condyle AVN
16-25yo athletes, knee locks out on extension
associated with Wilson’s sign
best seen on tunnel view radiograph

Question 17

panner’s

Answer 17

capitellum AVN

Question 18

radiographic signs of scheuermann’s disease

Answer 18

slight loss of anterior body height of one or more vertebrae (10-15%
multiple endplate irregularities of 3 or more continuous vertebra

Question 19

casemanagement for scheuermann’s

Answer 19

thoracolumbar brace, strenthen erectors, stretch pecks

can lead to permanent posutural defomrity and early DJD

Question 20

radiographic signs of legg calve perthes

Answer 20

fragmentation of femoral head (crescent sign)
flattening of femoral head, increased white density of emoral head (snow capped appearance, increased joint space
lealed LCP: mushroom capped appearance
refer to orthopedist for an A brace

Question 21

SCFE s/s

Answer 21

boys 10-16, salter harris type I fracture

femoral head slides inferior and medial/femoral neck slides superior and lateral

Question 22

lines for SCFE

Answer 22

klein’s, shenton’s, skinner’s

Question 23

congential hip dysplasia

Answer 23

putti’s triad: hypoplastic femoral head, shallow acetabular shelf, femoral head outside of acetabulum

Question 24

orthopedic tests for congential hip dysplasia

Answer 24

telescoping ,ortolani’s, barlow’s, allis

Question 25

protrusio acetabuli

Answer 25

axial migraition of femoral head wit unifooorm loss of joint space bilaterally most often occurs with rheumatoid arthritis also seen with osteoporosis, osteomalacia, paget's trauma and idiopathic obliteration of Kohler's teardrop

Question 26

avulsion fracture

Answer 26

protion of bone torn away by muscle or ligament tractional force

Question 27

comminuted fracture

Answer 27

fracture with mor than 2 fragments

Question 28

diastasis

Answer 28

displacement or separation of a lslightly movable joint

Question 29

compound/open fracture:

Answer 29

skin ruptured and bone exposed

Question 30

greenstick/hickory stick

Answer 30

incomplete fracture in children

Question 31

impaction fracture:

Answer 31

bone fragments driven into one another

Question 32

torus/buckling fracture

Answer 32

incompete fracture, one side of cortex is affected

Question 33

occult fracture

Answer 33

clinically evient but not seen on xray. may become evident a week to 10 days after

Question 34

stress/fatigue fracture

Answer 34

insufficiency or repetitive stress causing a fracture

Question 35

bennett's

Answer 35

fracture of 1st metacarpal

Question 36

boxer's

Answer 36

fracture of 2nd or 3rd metacarpal

Question 37

bar room

Answer 37

fracture of 4th or th metacarpal

Question 38

scaphoid

Answer 38

MC feactureed carpal bone

Question 39

nightstick

Answer 39

fracture of proximal ulna

Question 40

monteggia

Answer 40

fractured ulna with radial head displacemtn

Question 41

galeazzi

Answer 41

fracture of diatal 1/3 of radius with dislocation of distal radio-ulnar joint

Question 42

colles

Answer 42

fracture distal radius with posteiror displacement of distal fragment

Question 43

smith

Answer 43

fracture of distal radius with anteiror displacement of distal fragment

Question 44

march

Answer 44

stress fracture of 2nd, 3rd, 4th metatarsals

Question 45

jones

Answer 45

transverse fracture at proxim 5th metatarsal

Question 46

clayshoveler's

Answer 46

avulsion fx of spinous process, MC C6-T1 hyperflexion injury

Question 47

hangman's

Answer 47

bilateral pedicle fracture of C2 due to hyperextnesion injury

Question 48

jerrerson

Answer 48

fx through anteriorr and posteiror arches of atlas due to axial compression

Question 49

dens fx

Answer 49

type 1: avulsion of tip of dens type II: fracture through base of dens type III: fracture through body of C2

Question 50

tear drop

Answer 50

avulsion of anterior inferior aspect of vertebral body from hyperextensiontauam MC C2 associated with acute anteiror cervical cord syndrome