Musculoskeletal Flashcards

1
Q

On what movement does subacromial impingement cause pain?

A

Shoulder abduction, between 60 and 120 degrees

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2
Q

What feature of ank spond might distinguish it from other pathology?

A

Pain at night that improves on getting up

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3
Q

What is an intracapsular fracture?

A

From the edge of the femoral head to the insertion of the capsule of the hip joint

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4
Q

What is an extracapsular fracture?

A

Either be trochanteric or subtrochanteric (the lesser trochanter is the dividing line)

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5
Q

What is a Garden system type I fracture?

A

Stable fracture with impaction in valgus

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6
Q

What is a Garden system type II fracture?

A

Complete fracture but undisplaced

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7
Q

What is a Garden system type III fracture?

A

Displaced fracture, usually rotated and angulated, but still has boney contact

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8
Q

What is a Garden system type IV fracture?

A

Complete boney disruption

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9
Q

What is a heliotrope rash?

A

A purplish rash to the eye lids seen in dermatomyositis

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10
Q

What are Gottron’s papules?

A

Roughened red papules over the extensor surfaces of the fingers seen in dermatomyositis

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11
Q

What are the Ottawa Rules for ankle x-rays?

A

Pain in the malleolar zone plus any one of the following:
Bony tenderness at the lateral malleolar zone
Bony tenderness at the medial malleolar zone
Inability to walk four weight bearing steps immediately after the injury and in the ED

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12
Q

What skin change is most associated with antiphospholipid syndrome?

A

Livedo reticularis

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13
Q

Which organism is most commonly indicated in discitis?

A

S aureus

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14
Q

For how many months must symptoms persist to be termed chronic fatigue?

A

4 months

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15
Q

How should polymyalgia rheumatica (PMR) be treated?

A

Steroids - should be a rapid improvement in symptoms (within a week) - failure to respond rapidly should result i in considerations of alternative diagnoses

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16
Q

How raised is ESR in PMR?

A

> 40

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17
Q

When in pain elicited most in lateral epicondylitis?

A

Resisted wrist extension/supination whilst elbow extended

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18
Q

What is lateral epicondylitis also known as?

A

Tennis elbow

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19
Q

When in pain elicited most in medial epicondylitis?

A

Pain is elicited during wrist flexion and pronation

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20
Q

What is medial epicondylitis also known as?

A

Golfer’s elbow

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21
Q

What are the conditions where doctors should offer immediate bone protection on commencement of long-term steroids?

A

Pt >65, or those that have previously suffered fractures - offer alendronate and ensure calcium and vitamin D replete

Pt’s <65 should be offered a bone density scan instead

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22
Q

How should you manage a pt according to their T-score in bone density scanning?

A

> 0 = reassure
0 - -1.5 = repeat scan in 1-3 years
< -1.5 = offer bone protection

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23
Q

What proportion of talipes is bilateral?

A

50%

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24
Q

Using the Ponseti method, after how long is talipes usually corrected after birth?

A

6-10 weeks

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25
Q

For how long should night-time braces be worn by children with talipes?

A

Up to the age of 4

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26
Q

What is the most common cause of talipes?

A

Idiopathic

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27
Q

What is the main S/E of colchicine?

A

Diarrhoea

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28
Q

What is the pathopneumonic feature of pseduogout?

A

Chrondrocalcinosis on XR - presents as ‘linear calcifications of the articular cartilage’

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29
Q

What are the RFs for the development of pseudogout at <50 y/o?

A
Haemochromatosis
Hyperparathyroidism
Low magnesium, low phosphate
Acromegaly
Wilson's disease
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30
Q

What type of crystals are deposited in the synovium in pseudogout?

A

Calcium pyrophosphate crystals

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31
Q

What are type I hypersensitivity reactions?

A

Anaphylaxis - antigen reacts with IgE bound to mast cells

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32
Q

What are type II hypersensitivity reactions?

A

Cell bound - IgG or OgM binds to antigen on cell surface

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33
Q

What are type III hypersensitivity reactions?

A

Immune complex - free antigen and antibody combine

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34
Q

What are type IV hypersensitivity reactions?

A

Delayed hypersensitivity - T-cell mediated

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35
Q

Graves disease and MG are examples of which type of hypersensitivity reaction?

A

Type V

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36
Q

What are the 4 features of osteoarthritis on XR?

A

Decrease of joint space
Subchondral sclerosis
Subchondral cysts
Osteophytes forming at joint margins

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37
Q

What is meralgia parasthetica caused by?

A

Lateral cutaneous nerve of thigh compression

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38
Q

What are myxoid cysts?

A

Also known as mucous cysts, they are benign ganglion cysts usually found on the distal, dorsal aspect of the finger. There is usually osteoarthritis in the surrounding joint

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39
Q

What anti-rheumatic drug should be avoided in pt’s with aspirin allergy?

A

Sulphasalazine

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40
Q

What is the risk associated with a scaphoid fracture?

A

Risk of avascular necrosis due to the blood supply to the scaphoid bone

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41
Q

What are the poor prognostic features of RA?

A
Rheumatoid factor positive
Anti-CCP antibodies
Poor functional status at presentation
X-ray: early erosions (e.g. after < 2 years)
Extra articular features e.g. nodules
HLA DR4
iInsidious onset
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42
Q

What is tested for McMurray’s Test?

A

Meniscal tears

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43
Q

What can alendronate be switched for when significant upper GI side effects are experienced?

A

Risedronate or etidronate

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44
Q

Which test may be positive in referred lumbar spine pain?

A

Femoral nerve stretch test may be positive - lie the patient prone. Extend the hip joint with a straight leg then bend the knee. This stretches the femoral nerve and will cause pain if it is trapped

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45
Q

What are the red flags for back pain?

A
Age < 20 years or > 50 years
History of previous malignancy
Night pain
History of trauma
Systemically unwell e.g. weight loss, fever
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46
Q

How is the femoral head epiphysis displaced in SUFE?

A

Postero-inferiorly

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47
Q

What is the most common cause of posterior heel pain?

A

Achilles tendon disorders

48
Q

What are the features of ank spond?

A

The A’s =

  1. Apical fibrosis
  2. Anterior uveitis
  3. Aortic regurgitation
  4. Achilles tendonitis
  5. AV node block
  6. Amyloidosis
49
Q

What are common features of meniscal tears?

A

Knee locking and feeling of ‘giving way’

50
Q

What are the classical features of untreated Paget’s disease of the bone?

A

Bowing of tibia

Bossing of skull

51
Q

What is meant by ‘Finkelstein test positive’?

A

Pain over her radial styloid on forced abduction/flexion of the thumb

52
Q

In what condition is Finkelstein test positive?

A

De Quervain’s tenosynovitis

53
Q

When does chondromalacia patellae (patellofemoral pain syndrome) classically cause pain?

A

Anterior knee pain on walking up and down stairs and rising from prolonged sitting.

54
Q

Is azathioprine safe in pregnancy?

A

Yes

55
Q

What is the classical description of pain in iliotibial band syndrome?

A

Tenderness 2-3cm above the lateral joint line

56
Q

What are the most common causes of drug-induced lupus?

A

Procainamide

Hydralazine

57
Q

How is Paget’s disease of the bone treated?

A

Bisphosphonates - e.g. alendronate

58
Q

What should be done with regard to allopurinol prophylaxis in acute gout flares?

A

Allopurinol should be continued at normal dose during a gout flare

59
Q

Within what age range is the FRAX tool valid?

A

Age 40-90 years old

60
Q

What are the conditions for which NICE recommends a DEXA scan rather than clinical risk score?

A
  1. Before starting treatments that may have a rapid adverse effect on bone density
  2. In people <40 y/o who have a major risk factor, such as history of multiple fragility fracture, major osteoporotic fracture, or current or recent use of high-dose oral or high-dose systemic glucocorticoids (more than 7.5 mg prednisolone or equivalent per day for 3 months or longer)
61
Q

Which nerve root compressions will result in a positive femoral stretch test?

A

L3 or L4

62
Q

Which nerve root compression will result in a positive sciatic nerve stretch test?

A

L5 or S1

63
Q

What is a flattened deltoid as a result of?

A

Axillary nerve damage - C5-C6 - may occur as a result of a humeral neck fracture or dislocation

64
Q

What does radial nerve palsy result in?

A

Wrist drop (radial nerve = C5-C8) - may occur as a result of a humeral mid-shaft fracture

65
Q

Damage to what may result in carpel tunnel syndrome?

A

Median nerve - C6, C8, T1

66
Q

What is ‘claw hand’ as a result of?

A

Damage to the ulnar nerve - C8, T1 - may occur as a result of medial epicondyle fracture

67
Q

What is ‘winged scapula’ as a result of?

A

Long thoracic nerve - C5-C7 - may occur during sport (e.g. following a blow to the ribs), or as a complication of mastectomy

68
Q

What is ‘waiter’s tip’ as a result of?

A

Erb-Duchenne palsy - damage to C5-C6 of the brachial plexus, may be secondary to shoulder dystocia during birth

69
Q

What is Klumpke injury as a result of?

A

Due to damage of the lower trunk of the brachial plexus - C8, T1 - may be secondary to shoulder dystocia or a sudden upward movement of the hand. It is associated with Horner’s syndrome

70
Q

What are the XR changes seen in rheumatoid arthritis?

A

Early findings:

  1. Loss of joint space
  2. Juxta-articular osteoporosis
  3. Soft-tissue swelling

Late findings:

  1. Periarticular erosions
  2. Subluxation
71
Q

Which drugs can precipitate gout?

A
Thiazides
Furosemide
Ciclosporin
Alcohol
Cytotoxic agents
Pyrazinamide
Aspirin
72
Q

What should be tested for before prescribing azathioprine?

A

Thiopurine methyltransferase (TPMT) - deficiency in this can lead to myelosuppression, and thus predict pt’s whom are at increased risk of azathioprine toxicity

73
Q

What is the most common responsible organism for osteomyelitis in most patients?

A

S. aureus

74
Q

What is the most common responsible organism for osteomyelitis in sickle cell patients?

A

Salmonella

75
Q

What is the most common reason total hip replacements need revision?

A

Aseptic loosening

76
Q

What scale is used to measure disease activity in rheumatoid arthritis?

A

DAS28

77
Q

How can you differentiate between acute compartment syndrome and a DVT?

A

Acute compartment syndrome = pain rapidly increases - ‘out-of-proportion’ - and pain on passive extension. Pain on passive dorsiflexion is Homan’s sign and more indicative of DVT

78
Q

Where in the world is Bechet’s disease more common?

A

Turkey, Iran and Japan

79
Q

What is mononeuritis multiplex?

A

A neuropathy of two or more non-anatomically related peripheral nerves - diabetes and RA are a common cause - most cases result in full spontaneous recovery in 3-6 months

80
Q

When should prophylactic treatment be started in relation to an acute attack of gout?

A

1-2 weeks or it can exacerbate the acute episode

81
Q

Which test will be positive in De Quervain’s tenosynovitis?

A

Finkelstein’s test (resisted abduction to the thumb is painful in a +ve test)

82
Q

Which nerve is at risk in an anterior shoulder dislocation?

A

Axillary nerve - damage results in decreased sensation over the deltoid muscle and weakness

83
Q

How may cluster headaches be treated acutely?

A

Intranasal sumitriptan

Home oxygen - not suitable for smokers

84
Q

What type of fracture occurs in children as a result of FOOSH?

A

Supracondylar fracture of humerus

85
Q

Which autoantibodies are associated with SLE?

A
ANA
Anti-dsDNA
Anti-Ro
Anti-Sm
Anti-La
86
Q

Which autoantibodies are associated with systemic sclerosis?

A
ACA
Anti-ScL-70
Anti-RNA polymerase
ANA - 95%
RhF - 30%
87
Q

How do you manage an undisplaced intracapsular fracture?

A

Cannulated screw or replacement (preferred)

88
Q

How do you manage a displaced intracapsular fracture?

A

Hemiarthropathy or THR

89
Q

How do you manage an extracapsular fracture?

A

Cannulated screw

90
Q

How do you manage an extracapsular fracture that is either peritrochanteric or intertrochanteric?

A

Dynamic Hip Screw

91
Q

What is the name of a long-standing ulcer in which an SCC is found?

A

Marjolin’s ulcer

92
Q

Does a negative temporal artery biopsy exclude GCA? And why?

A

No, because skip lesions are common

93
Q

How do patient’s present with patella dislocation?

A

Knee held in flexion, patella laterally dislocated, usually teenage girls

94
Q

What are gout deposits made up of?

A

Monosodium urate

95
Q

How do gout crystals appear?

A

Needle-shaped negatively birefringent crystals

96
Q

Which autoantibody has 95% sensitivity for SLE?

A

ANA

97
Q

When would Simmonds test (for Achilles tendon rupture) be considered positive?

A

Absence of normal plantar flexion on squeezing the calf muscle indicates a complete tendon rupture

98
Q

How would you investigate an Achilles Tendon Rupture?

A

USS (MRI if the diagnosis were unclear, e.g. Simmonds test wasn’t positive)

99
Q

What type of fracture causes a dinner-fork deformity?

A

Colles’ fracture (of the wrist)

100
Q

What is Gamekeepers Thumb also known as?

A

Skiers Thumb

101
Q

What types of fracture might result from a FOOSH (wrist in flexion)?

A

Falling on the hand outward = Colles’ (of the wrist)

Falling on the hand inward = Smith’s fracture (of the wrist)

102
Q

What is the most prevalent finger tendon injury in sport?

A

Mallet finger

103
Q

What is the most common type of metacarpal fracture?

A

Boxer’s fracture

104
Q

Should glucosamine and/or chondroitin supplements be used in OA?

A

No

105
Q

What is the most common type of shoulder dislocation?

A

Anterior - 95% of the time

106
Q

How does an anterior shoulder dislocation appear on XR?

A

AP XR - humeral head lies under the coracoid process

107
Q

What is spondylolisthesis?

A

Slippage of a vertebrae, usually forward, relative to the vertebrae below?

108
Q

What injury tends to occur in children when they FOOSH?

A

Supracondylar fracture (BE AWARE OF NEUROVASCULAR STATUS)

109
Q

What posture may people with ank spond presnt with?

A

Question-mark posture

110
Q

What is Mondor sign? And what is it pathognomonic for?

A

= bruising that tracts distally to the sole of the foot. Sign of calcaneal fracture

111
Q

What is CREST syndrome also called?

A

Limited cutaneous systemic sclerosis

112
Q

Which autoantibodies are are associated with CREST syndrome?

A

Anti-nuclear and anti-centromere antibodies

113
Q

Which auto-antibody is most specific for RA?

A

Anti-CPP

114
Q

What is Lachman’s test testing for?

A

Anterior cruciate ligament (ACL) injury of the knee

115
Q

What is a bumper fracture also known as?

A

Tibial plateau fracture

116
Q

What is a common complication of a scaphoid fracture?

A

Avascular necrosis