arthritis- radiology lecture Flashcards

1
Q

osteoarthritis

A

protective cartilage at ends of bones breaks down

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2
Q

which joints are affected in primary osteoarthritis

A

weight bearing / active joints

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3
Q

secondary osteo

A

affects an unexpected site due to overuse, previous injury or previous arthritis

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4
Q

what can lead to secondary osteo

A

rheumatoid arthritis and gout

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5
Q

Most commonly affected joints in osteo

A

knees, hands and hips

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6
Q

join type affected in osteo

A

synovial

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7
Q

symmetry of OA

A

asymmetrical within or between joints

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8
Q

radiographic features in OA

A

healthy bones have joint space and those with OA is reduced space

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9
Q

effect of synovial fluid

A

dissects into bone forming cycts s

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10
Q

symmetry in RA

A

symmetrical

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11
Q

joints affected in RA

A

synovial only, HANDS

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12
Q

what may cause soft tissue swelling

A

synovial proliferation and reactive joint effuion

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13
Q

osteopenia

A

decraese in bone mineral density

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14
Q

hallmark of RA

A

Marginal erosion ;
inflamed synovium destroys bone intially at joint margin

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15
Q

effect of erosion

A

bone gets smaller

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16
Q

seronegative arthritides

A

ankylosing spondylitis
psoriatic arthritis
reiters syndrome

17
Q

what is seronegative arthritides characterised by

A

synovitis and enthesitis

18
Q

enthesitis

A

inflammation at sites where ligaments and tendosn attach to bone

19
Q

synovitis

A

inflammation of joint and tendon sheath linigns

20
Q

ankylosis

A

stiffness of a joint

21
Q

where is psoriatic arthritis seen

A

small joints of hands and feet

21
Q

where is ankylosing spondylitis and reiters syndrome seen

A

scattered large lower limb joints

22
Q

where is more isotpoe seen

A

inflamed joint

23
Q

isotope test

A

uses a small dose of radioactive chemical to look at bones, organs and other parts of the body

24
Q

xray findings in osteo

A

LOSS
loss of joint space
marginal osteophytes
sclerosis
subchondral cysts

25
Q

management of osteo

A

excersize
nsaids
steroid injections for flare up ; 3 per year
replacement of joint

26
Q

difference between RA and OA

A

RA is an Inflammatory autoimmune disorder characterized by joint pain, swelling, and synovial destruction
OA is Chronic disease involving the imbalance between wear and repair of articular (hyaline) cartilage leading to progressive cartilage loss and accompanying periarticular change

27
Q
A