MSK Flashcards

1
Q

Temporal arteritis - immediate treatment ?

A

Oral prednisolone

unless vision is affected.
then prescribe IV methylprednisolone

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2
Q

Discitis - causative organism ?

A

Staph. aureus

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3
Q

Sensory innervation to dorsum of foot + innervates tibialis anterior muscle. Which nerve root ?

A

L4-L5

(Deep fibular nerve - damage causes foot drop)

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4
Q

Back pain which radiates to the thigh and/or calves
Walking uphill is easier

A

Spinal stenosis

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5
Q

Spinal stenosis risk factors

A

Older age
Previous back surgery
Manual labour

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6
Q

Knee jerk reflex is supplied by what nerve roots ?

A

L3 + L4

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7
Q

What muscle is responsible for hip flexion?

A

Iliopsoas muscle

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8
Q

Spinal deformity in ankylosing spondylitis

A

Thoracic kyphosis

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9
Q

Azathioprine interacts with what other drug to cause bone marrow suppression ?

A

Azathioprine + Allopurinol

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10
Q

Azathioprine + Allopurinol causes … ?

A

Bone marrow suppression

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11
Q

Dermatomyositis rash

A

Heliotrope rash

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12
Q

SLE rash

A

Malar rash

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13
Q

What does a heliotrope rash look like?

A

Named after the heliotrope flower, which has purple petals.

Bilateral lilac discolouration of the eyelids (particularly the upper eyelids)

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14
Q

What does a malar rash look like?

A

Butterfly-shaped rash over cheeks and nose that spares the nasolabial folds

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15
Q

Osteomyelitis investigation

A

MRI

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16
Q

Osteomyelitis causative organism

A

Staph. aureus

17
Q

Rule-out test for SLE

18
Q

Anti-Ro and Anti-La antibodies =

A

Sjogren’s syndrome

19
Q

Anti-Jo-1 antibody =

A

Dermatomyositis/Polymyositis

20
Q

Skin changes in dermatomyositis

A

Heliotrope rash
Gottron’s papules (pathognomonic)

21
Q

Causes of avascular necrosis

A

Long-term steroid use
Chemotherapy
Alcohol excess
Trauma

22
Q

Ankylosing spondylitis - findings on plain radiography

A

Syndesmophytes - bony growths originating from inside a spinal ligament or of the annulus fibrosus.

23
Q

autosomal dominant pathogenic variant in the FBN1 (fibrillin) gene = what condition ?

A

Marfan’s syndrome

24
Q

Sensory loss of posterolateral aspect of leg and lateral aspect of foot, weakness in plantar flexion of foot, reduced ankle reflex, positive sciatic nerve stretch test.
Which nerve root?

25
What must be corrected before prescribing bisphosphonates for osteoporosis?
Vitamin D deficiency/Hypocalcaemia
26
How often is methotrexate taken?
Weekly
27
HLA-B27 is positive in what % of ankylosing spondylitis patients?
90%
28
Most specific antibody for SLE?
Anti-dsDNA
29
Following an injury: 1. Respiratory problems 2. Neurological problems 3. Petechial rash (tends to occur after the first 2 symptoms)
Fat embolism
30
Reactive arthritis - first line management
NSAIDs
31
Patients who are allergic to aspirin may also react to ... ?
Sulfasalazine
32
If NSAIDs are contraindicated e.g. peptic ulcer , what painkillers should be prescribed for gout?
Colchicine
33
Which drugs are associated with atypical stress fractures?
Bisphosphonates
34
Buerger's disease - main risk factor
Very heavy smoking (very rare)
35
CREST - what does it stand for?
Calcinosis Raynaud's phenomenon Esophageal dysmotility Sclerodactyly Telangiectasia
36
Ottawa Rules are for?
Ankle fractures
37
Garden classification is for?
Neck of femur fractures
38
Salter-Harris is for?
Growth plate fractures in children