Ortho/Rheum Flashcards
Fibromyalgia definition
central pain disorder, multiple tender trigger points
Fibromyalgia Dx
Diffuse pain in11/18 trigger points for >3m
Muscle biopsy: moth eaten appearance
DOE –> ESR, CRP, CBC
Fibromyalgia Tx
NSAIDS
Amitriptyline/Fluozetine/Gabapentin
DO NOT use opioids/corticosteroids
Gout etiology
extracellular fluid urate saturation
Hyperuricemia >6.8mg/dl
Attacks 2/2 purine rich food (ETOH, seafood, yeats
Gout sx
Flares: monoarthropathy, severe joint pain, erythema,
- Podagra: 1st MTP joint involvement, knees, feet
Chronic: collection of fluid in soft tissue
May lead to renal failure
Gout dx
Arhrocentesis: MSU Crystals, leukocytosis in synovial fluid
Elevated ESR/CRP
NEGATIVE BIREFRINGMNET
Gout Tx acute/ chronic
Acute: NSAIDS is 1st line
Colchicine 2nd line
Chronic: Allopurinol, Uloric, Colchicine
Pseudogout
Calcium pyrophosphate deopsition in joints
MC knee
Pseudogout Dx
Arthrocentesis: weakly positive, rhomboid shape synovial crystals
Xr: chondrocalcinosis
Pseudogout tx
acute attacks: intraarticular steroids are 1st line, NSAIDS, colchicine
Chronic: NSAIDS, colchicine
Polyarteritis Nodosa (PAN) etiology
Systemic vasculitis of medium/small arteries
Necrotizing inflammatory lesions
PAN manifestations(4)
Renal HTN/failure
Constitutional: fever, myalgias, arthritis, lungs spared
CNS: neuropathy,
Derm: livedo reticularis, purpura, reynauds, ulcers/nodules
PAN dx
BIOPSY
elevated EST
angiography: microaneurysms with abrupt cut off of small arteries
ANCA NEGATIVE
PAN tx
corticosteroids
Polymyalgia Rheumatica etiology
Idiopathic inflamm causing synovitis, bursitis, tenosynovitis
Closely related to giant cell arteritis
Polymyalgia rheumatica manifestations
B/L proximal joint aching/stiffness
Morning stiffness >3 min of pelvic/neck/shoulder pain
NO muscle weakness
Polymyalgia rheumatica Dx/ Tx
Dx: ESR> 50, temporal artery biopsy for GCA
TX:Low dose corticosteroids
NSAIDS
Methotrexate
Polymyostitis etiology
Idiopathic inflam muscle disease of PROXIMAL limbs, neck, pharynx
Polymyositis manifestation
Progressive: symmetrical proximal muscle weakness, dyaphagia, skin rash, atrophy
Polymyositis Dx
Biopsy: Increased muscle enzymes (ALDOLASE and CK)
Anti-Jo 1Ab –> mechanic hands
Hyperkeratotic, cracked hands
Lung fibrosis
Anti SRP Ab
Polymyositis Tx
1st line: high dose corticosteroids
Reactive arthritis etiology
Autoimmune response to an infection in another part of the body
MC: chlamydia/gonorrhea
Reactive arthritis manifestations (triat)
Triad: conjunctivitis, urethritis, arthritis
Keratoderma blennorrhagium: hyperkeratotic lesions on palms and soles
Reactive arthritis dx
+HLA-B27, leukocytosis, elevated ESR
Synovial fluid: WBCs, bacterial culture negative