Joint pain Flashcards

1
Q

What are the features of mechanical pain?

A

pain worse on movement and eases with rest

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2
Q

What are the features of inflammatory pain?

A

pain may occur at rest and is often aggravated by movements, particularly those which narrow the joint space

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3
Q

What are the features of crystal arthritis?

A

acute, extreme pain associated with erythema over the joint (normally a single joint)

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4
Q

What are the features of septic arthritis?

A

pain developing over 1-2days in a single joint

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5
Q

What are the features of rheumatic fever or gonococcal arthritis?

A

joint pain which flits between joints

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6
Q

What are the features of bone pain?

A

pain is penetrating, deep or boring and is worse at night
localised pain suggests a malignancy, infection (osteomyelitis), avascular necrosis, osteoid osteoma (benign bone tumour)

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7
Q

What are the features of muscular pain?

A

pain associated with stiffness and is poorly localised, deep and aggravated by the use of muscle

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8
Q

What is the difference in the presentation of partial and complete tears?

A

partial tears are painful

complete rupture may be relatively painless

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9
Q

What are the features of fracture pain?

A

sharp and stabbing, aggravated by movement or use and relived by res/splintage, normally after trauma

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10
Q

What sort of pain is described when there is trapping of a peripheral nerve?

A

shooting pain

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11
Q

What sort of pain is seen in osteoarthritis?

A

chronic joint pain in patients >40years, patients have ‘good days’ and ‘bad days’. Normally affects many joints

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12
Q

What sort of pain is described in chronic pain syndrome?

A

pain is all over, which is unremitting with little diurnal variation

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13
Q

How does inflammatory arthritis present?

A

presents with early morning stiffness and usually takes at least 1 hours to wear off with activity

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14
Q

How does non-inflammatory arthritis present?

A

stiffness occurs after rest and last only a few minutes on movement
there may be pain on movement
typically eases with rest

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15
Q

What are the soft tissue causes of stiffness?

A

contracture, spasticity or tetany due to upper motor lesion
polymyalgia rheumatica
enthesopathy
bursitis

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16
Q

When is erythema seen in the joints?

A

common in acute inflammatory arthritis
and in infective, traumatic and crystal induced conditions
unusual in rheumatoid arthritis or SLE

17
Q

What does joint weakness suggest?

A

joint disorder, peripheral nerve lesion or muscle disease

may be secondary to pain and be focal or generalized

18
Q

What does proximal weakness suggest?

A

primary muscle disease

19
Q

What does distal weakness suggest?

A

more likely to be neurological

20
Q

What is ‘locking’ ?

A

incomplete range of movement of a joint because of anatomical block
may be associated with pain
patient can unlock the join using manoeuvres

21
Q

What is ‘pseudolocking’?

A

loss of the range of movement due to pain

22
Q

What is triggering?

A

result of a nodular tendon thickening or a fibrous thickening of the flexor sheath

23
Q

What are the key things to establish in a joint deformity?

A

malposition may be partial (subluxation) or total (dislocation)
establish if the joint deformity is fixed or mobile and whether it is passively correctable

24
Q

What are differentials for acute monoarthritis?

A
septic arthritis 
crystal arthritis (gout, pseudogout) 
trauma (haemarthrosis) 
bleeding diatheses
palindromic rheumatism 
arthritis due to juxta-articular bone tumours 
leukaemic joint deposits
25
Q

What are the differentials for oligoarthritis (5 joints) ?

A
crystal arthritis 
psoriatic arthritis 
reactive arthritis (salmonella, campylobacter)
ankylosing arthritis 
osteoarthritis 
sarcoidosis
26
Q

What are the differentials for symmetrical polyarthritis?

A

rheumatoid arthritis
osteoarthritis
viruses (hep A, B and C, mumps)

27
Q

What are the differentials for asymmetrical polyarthritis?

A

reactive arthritis

psoriatic arthritis

28
Q

What are the differentials for chronic monoarthritis?

A

osteoarthritis

occasionally psoriatic, reactive and RA may present as monoarthritis

29
Q

What investigations should be carried out for an acute monoarthritis?

A
aspirate 
full infections screen
FBC, ESR, CRP, U&E, LFT 
serum uric acid 
x-ray
30
Q

What are the investigations needed in chronic monoarthritis?

A

FBC, ESR, CRP, U&E, LFT
ANA, RF
X-ray

31
Q

What investigations should be carried out in acute or chronic oligoarthritis?

A

Aspirate and full infectious screen
FBC, ESR, CRP, U&E, LFT
ANA, RF
X-ray