Rheumatology Flashcards
Patient’s shoulder is painful on moving, actively and passively, no swelling/color change.. diagnosis, prevalence and treatment?
Frozen shoulder: External rotation (on both active and passive movement) is classically impaired in adhesive capsulitis
Prevalence: DM
treatment: NSAIDs, physiotherapy, oral corticosteroids and intra-articular corticosteroids
A woman having restrictions in moving her knee, without swelling or being hot tender, morning stiffness of 10-15mins. First line?
This patient’s presentation is suggestive of knee osteoarthritis, given her age, gradual onset of pain, functional limitation and lack of significant morning stiffness. NICE guidelines regarding osteoarthritis were updated in 2022 and no longer advocate the use of paracetamol or weak opioids unless they are used infrequently and for short-term relief. First-line management for the knee is the use of topical NSAIDs such as topical ibuprofen.
Best diagnosis of ankylosing spondylitis??
sacro-ilitis on a pelvic X-ray
Features on XRay for ankylosing spondylitis?
sacroiliitis: subchondral EROSIONS, SCLEROSIS
squaring of lumbar vertebrae
‘bamboo spine’ (late & uncommon)
syndesmophytes: due to ossification of outer fibers of annulus fibrosus
chest x-ray: apical fibrosis
What if XRay is negative for AS but there is suspicion of AS??
The next step in the evaluation should be obtaining an MRI. Signs of early inflammation involving sacroiliac joints (bone marrow oedema) confirm the diagnosis of AS
Rheumatoid factor?
rheuMatoid faGtor
(Rheumatoid factor is an IgM antibody against IgG)
Z-score?
Z-score is helpful in diagnosing secondary osteoporosis and should always be used for children, young adults, pre-menopausal women and men under the age of 50
FRAX score??
FRAX tool computes the 10-year probability of hip fracture and/or of major osteoporotic fracture.
ORAI??
The Osteoporosis Risk Assessment Instrument (ORAI) uses age, weight, and the use of oestrogen as an aid in selecting postmenopausal patients for bone density testing.
QFracture Algorithm??
QFracture is a risk prediction algorithm which calculates an individual’s risk of osteoporotic fracture taking into account their individual risk factors such as age, sex, ethnicity, clinical values and diagnoses.
A pregnant SLE pt with anti-Ro (SSA) positive is at a risk of developing which fetal anomaly??
CONGENITAL HEART BLOCK {Fetal bradycardia}
HLA-A3??
Hemochromatosis
HLA-B51
Behcet disease
HLA-B27
PAIR)
Psoriatic arth
AS
Acute Anterior Uveitis
IBD associated arth
Reactive arth
HLA-DQ2/DQ8
Celiac disease
HLA-DR2
Narcolepsy
Goodpasteur
HLA DR3
Dermatitis herpetiformis
Sjogren
PBC
HLA DR4
DM-1
RA
Treatment algorithm of AS?
1) Encourage exercise eg swimming
2) NSAIDs first line
3) Physio
4) If peripheral joint involvement, then DMARD eg sulphasalazine
5) If high disease activity, then Anti TNF should be given (etanercept, adalimumab)..
A pt with hemochromatosis presents with excessive chondrocalcinosis, joint aspiration will show?
{Pseudogout - weakly positively birefringent rhomboid-shaped crystals}
Calcium pyrophosphate deposition (CPPD) disease or pseudogout. The characteristic finding in joint fluid analysis in CPPD disease is the presence of positively birefringent rhomboid-shaped crystals. These crystals are formed due to the deposition of calcium pyrophosphate dihydrate in the joint cartilage, leading to inflammation and pain.
Calciphylaxis??
Deposition of calcium within arterioles causing microvascular occlusion and necrosis of the supplied tissue. It most commonly affects the skin and presents as intensely painful, purpuric patches with an area of black necrotic tissue that may form bullae, ulcerate, and leave a hard, firm eschar..
What are the RFs of Calciphylaxis??
ESRD, DM, RA, hypercalcemia, hyperphosphataemia and hyperparathyroidism, Warfarin use.
How to treat calciphylaxis?
1) Reduce Ca and PO4 levels
2) Treat Hyperparathyroidism
3) Avoid contributing factors like calcium containing subs and warfarin
History of back and hip pain and increasing difficulty rising from a chair and combing her hair. She has also found her gait has changed - a friend told her it seemed as though she was ‘waddling’ around. Most helpful in confirming the diagnosis?
Vit D
{Suspect osteomalacia}
Triad of:
1)Bone pain, 2)tenderness
3)proximal myopathy (described by Waddling gait)
Other tests?
-Calcium (low)
-Phosphate (low)
-ALP (High)
-Parathyroid hormone (high)
X-ray:
Translucent bands (Looser’s zones or pseudofractures)