MSK= rheum and ortho Flashcards
absence of inflammation and normal lab tests
osteoarthritis
best initial analgesic in OA
acetaminophen
efficacy of glucosamine and chrondroitin sulfate
NO more effective than placebo
chronic gout
tophi–ANYWHERE in body
uric acid kidney stones
LONG ASYMPTOMATIC periods between attacks
most accurate test in gout
aspiration joint: needle shaped negative birefringence
what is essential to do in dx of gout
TAP JOINT– exclusion of infection
protein and glucose levels in synovial fluid
NOT HELPFUL in diagnosis of gout
acute attack lab findings in podagra
ELEVATED ESR and LEUKOCYTOSIS
x-rays in gout
NORMAL early on
EROSIONS of cortical bone occur latter
intial tx of gout
- NSAID’s
- STEROIDS
- colchicine– used when cannot use NSAIDs or steroids
when to use steroid injections in gout
RENAL INSUFFICIENCY or unrepsonsive to NSAIDs
diet change in gout
- decrease beer
- weight loss
- decrease high purine foods: meat and seafood
side effects of colchicine
neutropenia
and diarrhea
benefit of colchicine in gout
effective in PREVENTING SECOND ATTACK of hout
gout drugs contraindicated if have renal insufficiency
probenecid
NSAIDs
sulfinpyrazone
gout drugs safe if have renal insufficiency
allopurinol
which gout drugs not okay to use in podagra
uricosuric agents– probenecid and sulfinpyrazone
or allopurinol
what drug to use if patient has high bp AND gout
losartan– since lowers uric acid aswell
2 big risk factors for pseudogout
HFE
hyperparathyroidism
confirmation dx of pseudogout= calcium pyrophosphate deposition disease= CPPD
MUST HAVE ASPIRATION OF JOINT– positively birefringent rhomboid crystals
initial tx of CPPD
- NSAIDS
- IA steroids
- colchicine– prevent subsequent attacks
lower back pain without neuro deficits etc.
NSAIDs. nothing more.
lower back pain with sensory loss, point tenderness over spine, hx of cancer, hyperreflexia
CORD COMPRESSION– malignancy
lower back pain with sensory loss, point tenderness over spine, hx of cancer, hyperreflexia AND FEVER AND INCREASE ESR
epidural abscess
MRSA epidural abscess
vancomycin or linezolid
acute neuro deficits, epidural abscess
systemic steroids
methicillin sensitive s.aureus epidural abscess
oxacillin, naficillin, cefazolin
leg pain in sciatica
buttocks and BELOW level of the knee
DIAGNOSTIC OF SCIATICA
positive SLR
L4
m: dorsiflex foot
s: inner calf
r: knee jerk
L5
m: dorsiflex toe
s: inner forefoot
r: -
S1
m: eversion foot
s: outer foot
r: ankle jerk
best initial test for: cord compression, epidural abscess, ank spon, CES
MRI
imaging for simple Lower back pain
NOOOOOO
imaging for positive SLR alone
NOOOOOOO
tx of cord compression
STEROIDS– more important to prevent paralysis first, then giving MRI imaging
tx CES
surgical decompression
tx of sciatica
NSAID’s and continue ordinary exercise. NO BED REST.
rapid and dramatic beneficts with steroid injections
leg pain worse with leaning backwards/ going down hill
lumbar spinal stenosis
leg pain better with leaning forward/cycling
lumbar spinal stenosis
only test for dx of spinal stenosis
MRI
tx spinal stenosis
surgical– dilate spinal canal
what is normal in spinal stenosis
ABI’s
labs in fibromyalgia
NORMAL LABS
best initial tx of fibromyalgia
- amtitryptiline
- milnacipran
- pregabalin
- trigger point injections with local anaesthetics
tx of fibromyalgia with steroids
NEVER THE RIGHT ANSWER
when is carpal tunnel pain worse
AT NIGHT
most accurate dx of carpal tunnel syndrome
electromyography
nerve conduction studies
MRI for carpal tunnel syndrome
NEVER ENVER NEVER NEVER
best initial tx carpal tunnel
- wrist splints
- avoid manual activity
- nsaids etc.
- steroid injection
curative tx carpal tunnel
surgical release
duputyrens contacture tx.
- triamcinolone
- lidocaine
- collagenase injection
severe tenderness at insertion of supraspinatous
ROTATOR CUFF INJURY
most accurate test in rotatory cuff injury
MRI
tx of rotatory cuff injury
- conservative: red, NSAIDs, physical tx
2. surgery– complete tear, unresponsive to conservative
which comes first– sensory or motor impairment in carpal tunnel syndrome
SENSORY
anterior knee pain after trauma to joint or meniscal tear
PATELLOFEMORAL SYNDROME
anterior knee pain WORSENS just after starting to walk
patellofemoral syndrome
anterior knee pain RELIEF after sitting for a prolonged period of time
patellofemoral syndrome
XR in PF syndrome
NORMAL
tx of PF syndorme
physical tx
surgery in PF syndrome
NOOOOO NEVER- because nothing to fix surgically
very severe pain in bottom of foot, near the calcaneus
plantar fasciitis
pain with plantar faciitis
WORSE– morning
RELIEF– walking few steps/use
tx of plantar faciitis
- stretching, arch supports, NSAIDs
- steroid injection
- RARELY surgical release of plantar facia
need an abnormal XR to diagnose RA?
NOOOOOOOOO
Point system dx of RA, >6 points
- joint involvement (up to 5 points)
- ESR or CRP (1 pt)
- duration > 6 weeks (1 pt)
- RF or anti-CCP (1 pt)
MCC death in RA
CORONARY ARTERY DISEASE
any patient with erosive disease in RA, start with at least….
METHOTREXATE
erosive disease in RA=
joint space narrowing
physical joint deformities
XR abnormalities
mild disease DMARD–
hydroxchloroquine
what to do before hydroxychloroquine
DILATED EYE exam– since its toxic to the retina
what RA drugs safe in pregnancy
sulfasalazine and hydroxchloroquine
SE’s of sulfasalazine
- bone marrow toxicity
- hemolysis with G6PD
- rash
non- diagnostic criteria for SLE
- alopecia
- lung: pneumonia, alveolar haemorrhage, restrictive lung disease
- ocular: photophobia, cotton wool spots, blindness
acute exacerbation of SLE labs
decrease complement
and increase anti-dsDNA
what do you patients with SLE die from
infection
what do older patients with SLE die from
atherosclerosis
asymptomatic ANA
DO NOT TREAT
best initial test for APL
mixing study
most specific test for APL
Russell Viper Venom Test: prolonged with APL Abs and does not correct on mixing with normal plasma
asymptomatic APL antibody
DO NOT TREAT
when to investigate APLS
- two first trimester losses
- one second trimester loss
preventing recurrence of spontaneous abortion with APL
heparin and aspirin
pencillamine in scleroderma
NOT EFFECTIVE
renal crisis tx in scleroderma
ACE inhibitors
raynaud tx in scleroderma
CCBs
pulmonary fibrosis tx in scleroderma
cyclophosphamide
pulmonary HTN tx in scleroderma
- bosentan
- sildenafil
- Prostacyclin analogs: iloprost, treprostinil, epoprostenol
which cancers are associated with dermatomyositis
OVARY
LUNG
GI
LYMPHOMA
best initial test for dermatomyositis
CPK and aldolase
most accurate test for dermatomyositis
muscle biopsy
anti-Jo antibodies associated with…
lung fibrosis
very bad dental caries and need to constantly drink water
sjogrens syndrome
most dangerous complication of sjogrens
lymphoma
best initial test for sjogrens
schirmer test– filter paper placed against eye– wetness of filter paper
most accurate test for sjogrens
lip or parotid gland biopsy
intial tx of sjogrens
water the mouth
fluoride
artificial tears
medical tx of sjogrens
pilocarpine and cevimeline: increase ACh
cure for sjogrens
NOOOOOPE, just evaluate for lymphoma, and lifespan is NOT shortened
foot drop ddx
peroneal nerve injury
- lead poisoning
- PAN
multiple peripheral neuropathies– like radial nerve and perennial nerve and ulnar nerve and lateral femoral cutaneous nerve
MONONEURITIC MULTIplex
mononeuritis multiplex associated with….
PAN
stroke in a young person with vasculitis
PAN
most accurate test for PAN
bx of symptomatic site
test all patients with PAN for…..
hep B and hep C
elevated ESR
normal CPK and aldolase
polymalgia rheumatica
tx of polymyalgia rheumatica
LOW DOSE steroids
giant cell arteritis complication….
aortic aneurysm
blindness in GCA
IRREVERSIBLE
c-ANCA
anti-proteinase 3
p-ANCA
anti-myeloperoxidase
best test for wegner
LUNG bx> renal bx
least accurate bx in wegners
sinus biopsy
recurrent URTI and LRTI with renal insufficiency – NOT resolving with antibiotics
wegners
most accurate test churg-strauss
biopsy
most accurate dx of HSP
bx
most common dx of HSP
CLINICAL
IgA levels for HSP
NOT RELIABLE for making the HSP diagnosis
cryoglobulins are not the same as….
cold agglutinins
lab tests in cryoglobulinemia
positive RF
make IC’s in the cold
cryoglobulinaemia tx
NOT STEROIDS
tx underling– hep C: IFN and ribavarin
complement decrease SLE
C3 decreased (SLE= 3 letters)
complement decrease hep C
C4 decreased (hep C= 4 letters)
oral ulcers, genital ulcers, skin lesions
bechets syndrome
non-triad thing with bechets…
OCULAR LESIONS–> blindness
pathergy
sterile skin pustules from minor trauma (like needle stick), associated with bechets syndrome
HLA-B27
NEVER NEVER NEVER
- most accurate
- best initial
- confirmatory
back pain worsened by rest
ANK-SPON
2 heart things with ank-spon
aortic insufficiency
AV block
best initial test in ank-spon
XR of SI joint
most accurate test in ank-spon
MRI– shows abnormalities years before XR is abnormal
bamboo spine
LATE finding in ank-spon
tx of ank spon
- NSAIDs
- exercise
- anti-TNF
tx of psoriatic arthritis
- NSAIDs
- MTX
- anti-TNF
specific test for reactive arthritis
NOOOOO specific test for reactive arthritis
keratogerma blenorrhagicum
skin lesion unique to reactive arthritis that looks like pustular psoiasis
what should be done for hot swollen joint
JOINT TAP– exclude septic joint
tx of reactive arthritis
- NSAIDs
2. sulfasalazine
antibiotics in reactive arthritis
OF no use if the joint pain has already started
most accurate test in osteoporosis
DEXA scan
blood tests in osteoporosis
NORMAL
best initial tx of osteoporosis
vit D and calcium
order of tx options in osteoporosis
- vit D and Ca
- bisphosphonates
- ERT
- raloxifene– post-menopausal woman: LESS breast cancer risk and REDUCES LDL
- teriperatide
- calcitonin
calcitonin use in osteoporosis
reduces the risk of vertebral fractures
side effects of teriperatide
hypercalcaemia
OSTEOSARCOMA IN RATS
if presented with multiple tx options for osteoporosis
vit D, ca, bisphosphonates
septic arthritis most commonly occurs in….
DAMAGED JOINTS
empiric tx for septic arthritis
ceftriaxone and vancomycin
GN bacilli septic arthritis tx
- quinolones
- aztreonam
- cefotazime
- piperacillin
- aminoglycosides
GP coci (sensitive) septic arthritis tx
- oxacillin, naf
- cefazolin
- pip-tazo
GP cocci (resistant) septic arthritis tx
- linezolid
- daptomycin
- tigecycline
- ceftaroline
tx of prosthetic joint injection
LOOSENING OF joint
- remove joint
- 6-8 weeks antibiotics
- replace joint
mcc prosthetic joint infection
staph epidermidis
polyarthritis, tenosynovitis, petechial rash
= GONOCOCCAL ARTHRITIS
when does gonococcal arthritis most often occur
during menses
best initial tx for gonococcal arthritis
CEFTRIAXONE
NOTTTTTTTTTT— fluoroquinolones – since >5% are resistant
recurrent gonococcal infection
TERMINAL COMPLEMENT DEFICIENCY
OSTEOmyelitis kids
haematogenous
OSTEOmyelitis adults
contiguous– ie. from nearby infection– diabetic ulcer
best initial test for osteomyelitis
XR
most accurate test for osteomyelitis
bone biopsy
most appropriate next mgmt if normal XR and osteomyelitis
MRI or bone scan (bone scan if contraindicated MRI— pacemaker ex.)
ESR use in osteomyelitis
follow response to tx
culturing and drainage of osteomyelitis
NEVER NEVER NEVER NEVER NEVER correct answer– since cannot distinguish between colonization inside bone vs. causing infection
E. coli tx osteomyelitis
ciprofloxacin– MUST CONFIRM SENSITIVITY to chipper before starting