Seronegative Arthritis Flashcards
what is seronegative arthritis?
> asymmetric arthritis
negative rheumatoid factor
extra-articular features
may be associated with HLA-B27
what is ankylosing spondylitis?
chronic inflammatory rheumatic disorder with predilection for axial skeleton and entheses
how does ankylosing spondylitis present?
> inflammatory back pain > limitation of movement in the lateral plane of the lumbar spine and the antero-posterior plane of the spine > limited chest expansion > bilateral sacroiliitis on x rays > other features - achilis tendonitis - dactylitis - uveitis - heart block - atypical fibrosis - IBD - osteoporosis - cauda equina syndrome - secondary amyloidosis
what would you check on examination of ankylosing spondylitis?
> cervical rotation
tragus to wall
occiput to wall
lateral spinal flexion
what investigation would you carry out in someone with suspected ankylosing spondylitis?
xray
what does xray criteria 1 represent in ankylosing spondylitis?
changes present
what does xray criteria 2 represent in ankylosing spondylitis?
> minimal abnormalities
erosions
sclerosis
no alteration of joint width
what does xray criteria 3 represent in ankylosing spondylitis?
> sacroiliitis
sclerosis
partial ankylosis
widening or narrowing
what dies x ray criteria 4 represent in ankylosing spondylitis?
total ankylosis
what is the classification criteria of ankylosing spondylitis?
> age less than 45years
more than 3 months of back pain
sacroiliitis plus more SpA features
HLA-B27 plus 2 or more SpA features
what is the management of ankylosing spondylitis?
> physiotherapy > NSAIDs > anti- IL-T7 > surgery (spinal or joint replacement) > treat osteoporosis > anti-TNF > DMARDs [sulfasalazine]
what different types of psoriatic arthritis are there?
> systemic polyarthritis
asymmetric oligoarticular arthritis
arthritis mutilans
predominant spondylitis
how does psoriatic arthritis present?
> enthesitis
dactylitis
nail pitting
what is the treatment for psoriatic arthritis?
> leflunomide > methotrexate > sulfasalazine > physiotherapy > occupational therapy > steroids > Anti-TNF therapy > cyclosporine
how does enteropathic arthritis present?
> peripheral and/or axial disease
> associated with IBD