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Diagnostic Imaging Tatum > DJD > Flashcards

DJD Flashcards

1
Q

arthritis with greater predisposition for fusion

A

degenerative

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2
Q

arthritis usually in weight bearing joints

A

degenerative

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3
Q

non-inflammatory deterioration of articular surface and marginal bone formation

A

osteoarthritis

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4
Q

uniform loss of joint space

A

inflammatory

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5
Q

nonuniform loss of joint space

A

degenerative

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6
Q

well marginated bone lesions are indicative of which arthritis

A

metabolic

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7
Q

lumpy bumpy arthritis

A

metabolic

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8
Q

ABCD’S of joint disease

A
  • alignment
  • bone
  • cartilage
  • distribution
  • soft tissue
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9
Q

common risk factors for DJD

A
  • age
  • females
  • obesity
  • trauma
  • high impact activity
  • inactivity or excessive activity
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10
Q

caused by abnormal articular forces upon a joint

A

loss of chondroitin sulfate

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11
Q

what does the loss of chondroitin sulfate affect

A

interferes with chondrocyte function

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12
Q

general radiological features of DJD

A
  • asymmetric loss of joint space
  • osteophytes
  • subchondral sclerosis
  • subchondral cysts
  • subluxation
  • intra-articular loose bodies
  • enthesopathy
  • ankylosis
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13
Q

what is the significance of degeneration in joint misalignment

A
  • degeneration leads to joint laxity
  • muscle tension and gravity may cause misalignment
  • redistribution of forces lead to bone deformity
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14
Q

classic radiographical finding is a gullwing appearance in the DIP joints of the hand

A

erosive osteoarthritis

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15
Q

enlarged soft tissue nodes of DIPs

A

heberden’s nodes

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16
Q

enlarged soft tissue nodes of PIPs

A

bouchard’s nodes

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17
Q

enlarged soft tissue nodes of MCPs

A

haygarth’s nodes

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18
Q

target locations for DJD

A
  • DIPs
  • PIPs
  • 1st metacarpal-carpal
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19
Q

if DJD is additive, then RA is

A

erosive

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20
Q

target locations for RA

A

MCP

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21
Q

appears unusually inflammatory, not to be confused with RA. middle aged females. affects DIPs and PIPs

A

erosive osteoarthritis

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22
Q

location of DJD in feet

A

MTP

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23
Q

known as hallux ridigus when present with symptoms of pain and stiffness

A

DJD in feet

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24
Q

metatarsal varus, hallux valgus joint misalignment is common

A

DJD in feet

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25
Q

joint of shoulder complex often involved in DJD

A

acromioclavicular joint

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26
Q

what further complications could AC joint osteophytes cause

A

they extend inferiorly and may impinge on rotator cuff tendons leading to tendon calcification and superior margination of humerus

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27
Q

what could osteophytes and misalignment in the glenohumeral joint indicate

A
  • signigicant previous trauma

- CPPD (calcium pyrophosphate dihydrate disease)

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28
Q

CPPD

A

calcium pyrophosphate dihydrate disease (pseudogout)

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29
Q

causes of shoulder impingement syndrome

A
  • elevation of humeral head
  • degenerative enthesopathic changes of the humeral head
  • AC osteophytes
  • supraspinatus degeneration
30
Q

what color is the cortex on an MRI

A

black

31
Q

what color is the cortex on a CT

A

white

32
Q

HADD

A

hydroxyapatite deposition disease

33
Q

most common location for HADD

A

tendon of supraspinatus

34
Q

deposition of calcium within tendons and bursa

A

HADD

35
Q

other names for HADD

A
  • calcifying tendinitis and bursitis

- peritendinitis calcarea

36
Q

three compartments of knee that allow for accurate description of the radiograph

A
  • medial tibiofemoral
  • lateral tibiofemoral
  • retropatellar
37
Q

genu varus

A

loss of joint space in the medial compartment of the knee (DJD)

38
Q

findings of DJD in knee

A
  • asymmetrical loss of joint space (ex. genu varus)
  • subchondral sclerosis
  • subchondral cysts
  • articular deformity and irregularity
  • hypertrophic changes of the intercondylar spines
  • enthesopathy of the anterior surface of the patella
39
Q

calcification of the medial tibial collateral ligament (MCL)

A

pelligrini-steida calcification

40
Q

HADD of MCL

A

pelligrini-steida calcification

41
Q

what causes pelligrini-steida calcification

A

post-traumatic dystrophic changes

42
Q

multiple intra-articular loos bodies (joint mice) from synovial tissue metaplasia that may ultimately ossify to become bisible radiographically

A

synovial osteochondrometaplasia

43
Q

refers to fragments of cartilage, meniscus, or synovium within the joint

A

intra-articular fragments (joint mice)

44
Q

joint mice can sometimes be confuse with what other disorder

A

HADD. but HADD is a uniform, homogenously dense finding

45
Q

where is the groove for the popliteal tendon

A

lateral epicondyle of femur

46
Q

PVNS

A

pigmented villonodular synovitis

47
Q

slow growing, benign, and locally invasive tumor of the synovium most commonly found in the knee

A

PVNS

48
Q

what pathology should be considered in younger patients with unexplained hip pain

A

PVNS

49
Q

apple core deformity is a sign of

A

PVNS

50
Q

radiographic findings of OA in the hip

A
  • loss of joint space (MC in the superior compartment)
  • osteophyte formation
  • subchondral cysts (eggar’s cysts)
  • sclerosis
  • buttressing
  • joint deformity
51
Q

thickened cortex at the medial femoral neck as the result of biomechanical changes across the joint

A

buttressing

52
Q

large cysts

A

geodes

53
Q

list these three cysts from most benign to most malignant:

  • moth eaten
  • geographic
  • permeative
A
  • geographic (most benign)
  • moth eaten
  • permeative (most malignant)
54
Q

if a cyst has a long transition zone it is most likely

A

malignant

55
Q

if a cyst has a short transition zone it is most likely

A

benign

56
Q

severe medial hip migration with remodeled acetabulum is known as

A

acetabular protrusion

57
Q

acetabular protrusion is evaluated by who’s line

A

kohler’s line

58
Q

eponym for acetabular protrusion

A

eponym is otto’s pelvis

59
Q

joint abnormalities secondary to impaired pain perception or proprioception

A

neuropathic arthropathy (charcot’s joint)

60
Q

neurotrophic changes to nonweightbearing joints

A

hypertrophy

61
Q

neurotrophic changes to weightbearing joints

A

atrophy

62
Q

most common etiology for neurotrophic arthropathy

A

diabetes (also syphilis and spinal cord trauma)

63
Q

the six D’s associated with hypertrophic neurotrophic joints

A
  • distended joints
  • density increases
  • debris
  • dislocation
  • disorganization
  • destruction
64
Q

knee and lumbar spine involvement of neurotrophic arthropathy is usually due to

A

tabes dorsalis

65
Q

a complication of untreated syphilis that involves muscle weakness and abnormal sensations due to demyelingation of sensory nerves

A

tabes dorsalis

66
Q

lisfranc joint

A

tarsometatarsal articulation

67
Q

cutoff sign

A

atrophic neurotrophic arthritis leads to this degeneration of the humeral head

68
Q

if someone has DISH what should they be screened for

A

diabetes and OPLL

69
Q

OPLL

A

ossification of posterior longitudinal ligament

70
Q

may want to refer back to the diagram written on page 132

A

…

Diagnostic Imaging Tatum (4 decks)

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