Artheropathies Flashcards
what is the difference between arthropathy, arthralgia and arthritis
arthropathy joint disease
arthralgia joint pain
arthritis joint inflam
name 5 seronegative arthropathies
OA ank spon psoriatic arthritis reactive arthritis IBD arthritis
where are Heberden and Bouchards nodes in osteoarthritis
Heberden DIP
Bouchard PIP
bony swellings are seen in osteoarthritis. true or false
true
osteoarthritis pain is relieved by rest. true or false
true
what is seen in the knee that is linked to osteoarthritis
baker’s cyst
what is the first line investigation for osteoarthritis
x-ray
what is seen on x-ray is osteoarthritis
L loss of joint space
O osteophytes
S subchondral sclerosis
S subchondral cysts
what drug can be given for osteoarthritis pain relief
TOP/PO NSAID, capsaicin
what drug can be given during osteoarthritis flare ups
intraarticular CCS
what surgeries can be offered for OA
arthroplasty, arthrodesis, osteotomy
what is arthroplasty
joint replacement
what is arthrodesis
surgical induction of ossification of a joint
what is osteotomy
removing 1 or both sides of a joint surface
what age can qualify for a total hip replacement
older than 65
what are some indications for total hip replacement
pain whilst taking analgesia, pain in the night, impaired activities of daily living
what are some side effects of NSAIDs
peptic ulcers, renal disease, CVD, asthma, exacerbation, dyspepsia
what gender is RA more common in
women
what lifestyle factors affects rheumatoid arthritis
smoking
what genetic type predisposes rheumatoid arthritis
HLA-DR4
what is seen on x-ray in rheumatoid arthritis
soft tissue swelling, juxta-articular osteopaenia, subluxation, loss of joint space
which joints in the hand / feet are commonly affected by rheumatoid arthritis
MCP, MTP, PIP
describe how a joint affected by rheumatoid arthritis would appear on examination
swollen, warm, tender
what type hypersensitivity is rheumatoid arthritis
iv
what clue in the history helps differentiate rheumatoid and osteoarthritis
rheumatoid arthritis morning stiffness for longer than 30 minutes
name some extra-articular presentations of rheumatoid arthritis
rheumatoid nodule, pulmonary nodule, eye disease
what blood tests would you order for rheumatoid arthritis
FBC, CRP, PV, CCP, ACPA, RF
which autoantibody is most specific for rheumatoid arthritis
anti-CCP
which autoantibodies are less specific for rheumatoid arthritis
rheumatoid factor, ACPA
what is seen on mri in rheumatoid arthritis
bone marrow oedema
what is seen on ultrasound in rheumatoid arthritis
synovitis
what score is used to measure rheumatoid arthritis disease activity
DAS28
what DAS28 score indicates remission
<2.6
what DAS28 score qualifies treating with a biologic
> 5.1
what is the standard combination of medications for rheumatoid arthritis patients
NSAID + PO/IM CCS + DMARD
what is the 1st line DMARD for rheumatoid arthritis
methotrexate
what are the important side effects of methotrexate
pneumonitis, teratogen, hepatotoxic, mouth ulcer
what DMARD can be tried instead of methotrexate for rheumatoid arthritis if the patient has side efffects
leflunomide
which DMARDs for rheumatoid arthritis are suitable in pregnancy
1st sulfazalazine
2nd azathioprine
what drug can be given as an adjuvant to DMARDs in rheumatoid arthritis
hydroxychloroquine
how quickly should DMARDs be started for rheumatoid arthritis
within 3 months
which biologic would be used first for rheumatoid arthritis
IM infliximab
what is the mechanism of infliximab
anti-TNF
which biologic would be used 2nd for rheumatoid arthritis
rituximab
what is the mechanism of rituximab
CD20 B cells
what are some important side effects of biologics
reactivate latent TB, teratogen, > melanoma risk
what deformities caused by rheumatoid arthritis can be seen on the hands?
Boutonniere, swan neck, Z shape thumb
what is a spondyloarthropathy
arthritis affecting spine and sacroiliac joints
give 4 examples of spondyloarthropathies
ank spon, psoriatic arthritis, reactive arthritis, enteropathic arthritis
what is enthesitis
inflam at insertion of tendon to bone
give 2 examples of enthesitis
plantar fasciitis, achilles tenditinitis
what gender and age are risk factors for ank spon
men in late teens / early adult
what genetic type is a risk factor for ank spon
HLA-B27
ank spon mainly affects small joints. true or false
false, affects large joints
what are the extra-articular presentations of ankylosing spondylitis
anterior uveitis, photophobia, pulmonary fibrosis
what blood tests would be done for ankylosing sponylitis
CRP, PV, ESR (all raised)
what imaging is done for ank spon
MRI, XR
what is seen on MRI in ank spon
sacroilitis, bone marrow oedema
what is seen on XR in ank spon
Romanus lesions, enthesitis, syndesmophyte, bamboo spine
what are the first line medications for ank spon
pain relief + biologic
what biologics are given for ank spon
anti-TNF
anti-IL17
what drugs are given for ank spon if it affects a peripheral joint
methotrexate, sulfasalazine
psoriatic arthritis is always symmetric. true or false
false. can be asymmetric
what areas of the body are affected by psoraitic arthritis
just spine or
just DIP or
same pattern as RA
what is seen on the hand in psoriatic arthritis
nail changes, sausage finger (dactylitis)
what is seen on xr in psoriatic arthritis
pencil in cup, erosions, whiskering enthesopathy
management options for psoriatic arthritis
steroids, methotrexate, sulfasalazine, biologics
what is the other name for reactive arthritis
reiter’s syndrome
what predisposes reactive arthritis
UTI or gastroenteritis 1-4wk before
genetic predisposition to reiter’s syndrome
HLA-B27
what are the 3 components that must be present for a diagnosis of reiter’s syndrome
urethritis
uveitis/conjunctivitis
arthritis
what joints are affected by reactive arthritis
asymmetric lower limb
investigations for reiter’s syndrome
ESR, CRP, PV, FBC, XR, blood/urine/stool culture
management of reactive arthritis
should resolve 6mth. NSAID + CCS
management of reactive arthritis present for >6mth
DMARD
what condition is associated with enteropathic arthritis
IBD
what parts of the body are affected by enteropathic arthritis
asymmetric large joints
what is seen on ultrasound in enteropathic arthritis
synovitis
management of enteropathic arthritis
treat IBD, DMARD if resistant
what gender is a risk factor for gout
men
what aspect of diet is a risk factor for gout
alcohol, purines (red meat, shellfish, red wine, chickpeas etc.)
is gout hypertrophic or erosive
erosive
what are purines converted to in the body
uric acid
what is deposited at joints in gout
monosodium
what medications are risk factors for gout
diuretic, cyclosporine
what joint is most commonly affected by gout
1st MTP
what sign is seen in chronic gout
tophi
what is the gold standard test for diagnosing gout and what does it show
joint aspirate for polarised light microscopy showing needle shaped crystals and negative birefringence
what is seen on XR in an acute gout attack
nothing
what is seen on XR in recurrent gout
erosions, osteophytes, destructive arthritis
management of gout during an acute attack
naproxen or colchicine
side effect of colchicine
diarrhoea
when is gout prophylaxis indicated
> 2 attacks, XR changes, renal stones, tophi
prophylactic management of gout
allopurinol
mechanism of allopurinol
xanthine oxidase inhibitor
side effect of allopurinol
skin rash
alternative to allopurinol if side effect (skin rash)
febuxostat
age thats a risk factor for pseudogout
70-80 years
joints affected by pseudogout
knee, wrist, ankle
what is seen on xr in pseudgout
chondrocalcification
what is seen on microscopy of joint aspirate in pseudogout
rhomboid chape calcium pyrophosphate crystals, weakly positive birefringence
management options for pseudogout
NSAID, colchicine, CCS
how do you monitor a DMARD
LFT, FBC 6 monthly
name 5 DMARDs
methotrexate, leflunomide, sulfazalazine, azathioprine, hydroxychloroquine