Msk - Arthritis

Front 1

hallmarks of djd

Back 1

joint space narrowing
sclerosis
osteophytes

Front 2

FINDINGS of DISH

Back 2

osteophytes with sclerosis, no joint pain . must have a lucent line

Front 3

findings of primary OA in hands

Back 3

PIP, DIP, 1st MCP, b/l symmetric

Front 4

findings of erosive OA

Back 4

joint space narrowing
sclerosis
osteophytes
severe osteoporosis
erosions

Front 5

how do subchondral cysts form

Back 5

synovial fluid is forced into subchondral bone --> cystic clxn o fjoint fluid
contused bone --> cyst formation

Front 6

radiographic hallmarks of RA

Back 6

STS
osteoporosis
joint space narrrowing
marginal erosions
proximal distribution
b/l symmetric

Front 7

how is hip affected in RA and OA

Back 7

in OA, fem heads migrate superolaterally
fem heads migrate axially in RA

Front 8

which diseases have marignal symmetric osteophytes

Back 8

IBD
ank spond

Front 9

which diseases have non-marginal, asymmetric syndesmophytes

Back 9

psoriatic and rieters

Front 10

what diseases affect SIJ

Back 10

ank spond
IBD
psoriatic
reiter's
infx
DJD
gout

Front 11

appearance of psoriatic arthritis

Back 11

distal joints affected
erosions with fuzzy margins (this helps differentiate psoriatic from other types of arthritis except reithers) periostitis
STS

Front 12

how does reiter's disease compare with psoriatic

Back 12

they are identical except that reiters tends to involve the feet more than hands

Front 13

pthophys of gout

Back 13

there is deposition of mono-Na urate crystals, esp in cartilage

Front 14

hallmark radiographic findings of gout

Back 14

tophi
nml mineralization
preserved joint spaces
punched out erosions w sclerotic boder
overhanging edges
asymmetric polyarticular distribution
if the crystals deposit in cartilage, findings are indistinguishable from OA

Front 15

where are tophi usually located

Back 15

periarticular area along extensor surface of bone

Front 16

classic triad of pseudogout

Back 16

well pain
chondrocalcinosis
joint destruction

Front 17

pathophys of joint destruction in pseudogout

Back 17

CPPD crystals erod through cartilage

Front 18

common locations for cppd arthropathy

Back 18

triangular fibrocartilage
knee
syphysis pubis

Front 19

entities that have a high assoc with pseudogout

Back 19

primary hyperpth
gout
hemochromatosis

Front 20

common findings assoc with collagen vasc disease in hands

Back 20

osteoporosis
st wasting

Front 21

features of SLE in hands

Back 21

severe ulnar deviation of phalanges, joint laxity
no eroisions

Front 22

features of scleroderma in hands

Back 22

subQ calcifications
bone loss in distal phalanges 2/2 abn vasculature

Front 23

features of dermatomyositis

Back 23

intramuscular calcs (as opposed to ST calcs seen in scleroderma)

Front 24

features of sarcoid in the hands

Back 24

lytic destrctive lesions in the cortex
characteristic lace-like appearance
may have skin nodules and STS
(sarcoid is typically only seen in hands)

Front 25

features of hemachromatosis of hands

Back 25

DJD in 2-4 MCP joints
squaring of MC heads from lrg osteophytes

Front 26

classic triad of "chronic" charcot joint

Back 26

severe destruction of bone
dislocation
heterotopic new bone formation

Front 27

what are the 2 different types of neuropathic joint

Back 27

the hypertrophic (chronic) joint
atrophic (acute) joint

Front 28

what ist he time period of the acute neuropathic joint
classic appearance

Back 28

3-4 weeks
most often, dramatic resorption of bone
both sides of the joint are usually involved, and this excludes neoplasm
edges are sharp, and look surgically amputated (this excludes infx)

Front 29

where does "acute" neuropathic joint occur most commonly

Back 29

non-weight bearing joints (shoulder and elbow, commonly)
in a pt who is not ambulatory, can also be seen in non weight bearing hip and knee

Front 30

most common cause of acute neuropathic joint

Back 30

syringomyelia

Front 31

what entities look like JRA

Back 31

paralysis and hemophyilia

Front 32

classic findings for hemophilia and JRA in knee

Back 32

widening of intercondylar notch of knee

Front 33

pathophys of synovial osteocondromatosis

Back 33

metaplasia of synovium --> deposition of cartilage w/i joints

Front 34

t or f:
no malignant tumors occur in joints

Back 34

TRUE!!

Front 35

appearance of non-calcified synovial osteochondromatosis

Back 35

joint effusion
+/- erosions and joint destruction

Front 36

another name for sudeck atrophy

Back 36

reflex sympathetic dystrophy

Front 37

appearance of sudeck atrophy

Back 37

severe patchy osteoporosis and STS, often in stocking/glove distribution

Front 38

what is osteochondritis dessicans

Back 38

small focal area of AVN in (often seen in medial epicondyle of femur)

Front 39

appearance of osteochondritis dessicans

Back 39

small focal lucency in affected area
a bony fragment is often shed and seen in the joint space (aka loose body/joint mouse)

Front 40

keinbock malacia

Back 40

local AVN of lunate

Front 41

freiberg infraction

Back 41

flattening/sclerosis of metatarsal head

Front 42

kohler disease

Back 42

focal AVN of navicular

Front 43

legg-calve-perthe disease

Back 43

focal avn of femoral head

Front 44

scheuermann disease

Back 44

focal avn of teh apophyseal rings

Front 45

osgood schlatter disease

Back 45

focal avn of the tibial tuberosity