Ankylosing spondylitis Flashcards

1
Q

seronegative spondyloarthropathies

A

AS
psoriatic arthritis
enteropathic arthritis
reactive arthritis

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2
Q

gene association

A

HLA B27

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3
Q

which joints affected?

A

sacroiliac

axial spine

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4
Q

hallmark clinical feature

A

inflammatory back pain

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5
Q

inflammatory back pain

A

insidious onset
worse in morning
improves with exercise

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6
Q

do most patients respond to NSAIDs?

A

yes

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7
Q

3 main treatment approaches

A

physiotherapy
NSAIDs
TNF alpha inhibitors

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8
Q

x-ray - spinal fusion

A

bamboo spine

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9
Q

key diagnostic factors

A

risk factors
inflammatory back pain
iritis/uveitis
enthesitis

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10
Q

risk factors

A

HLA-B27
family history
klebsiella pneumoniae

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11
Q

1st investigation

A

pelvic x-ray

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12
Q

investigations to consider

A

HLA-B27
MRI
cervical/lumbar x-ray
CRP, ESR

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13
Q

key complication

A

vertebral fractures

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14
Q

associated symptoms

A
weight loss, fatigue 
chest pain 
dactylitis 
anaemia 
restrictive lung disease
IBD
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15
Q

What test is done (OSCE)

A

Schobers

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16
Q

Describe how to do schobers test

A

L5 vertebra
make point 10cm above and 5cm below
bend forward - less than 20cm

17
Q

MRI uses

A

bone marrow oedema before x-ray changes occur

18
Q

Key x-ray findings

A

“bamboo spine”

  • squaring vertebral bodies
  • subchondral sclerosis and erosions
  • syndesmophytes
  • ossification of ligaments discs and joints
  • joint fusion
19
Q

syndesmophytes

A

areas of bone growth where ligaments insert into bone

20
Q

steroids

A

during flares

oral, im, ia

21
Q

example of anti-TNF

A

etanercept

22
Q

what is used if NSAIDs and anti-TNF not working?

A

secukinumab - monoclonal ab against IL-17

23
Q

additional management

A

stop smoking
physio, exercise and mobilisation
bisphosphonates
surgery - deformities