MSK Flashcards

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1
Q

transient synovitus

A

self limiting inflammation of hip joint in kids 3-10 years that causes limp and tends to follow a viral illness
-will look like septic joint but will NOT have kocher criteria

**if it doesn’t resolve, consider imaging for legg calves perthes

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2
Q

gout crystals on synovial fluid analy:

A

needle shaped, negatively birefringent crytsals

high uric acid states (thiazides, chemo, malignany, hemolytic anemias)

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3
Q

pseudogout crystals

A

rhomboid, positively birefringent crystals

CPPD

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4
Q

how do you manage clavicle fractures?

A

basically, if its non displaced and no worries about vessel involvement –> simple sling

if displaced, surgery

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5
Q

what should empiric osetomyltisi abx look like?

A

MRSA- vanc

anti-pseudomonal- FQ, cefepime, ceftazidine

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6
Q

appearance of osteomyelitis on MRI? diagnostic test?

A

periosteal elevations with osteolytic lesions of the metaphysis

bone bx is definitive!! not blood cultures

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7
Q

legg calves perthes

A

Most common= 6yo with insidious onsent antalgic gait
-<6 yo= conservative= CAST

(>8= femoral osteotomy)

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8
Q

septic arthritis kocher criteria

A

non weight bearing
ESR/CRP >40
WBC >12k
fever >38.5

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9
Q

in general, when do fractures in kids go to the OR?>

A

displaced or in growth plate!

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10
Q

Ewing sarcoma

A
boys < age 15
11;22
MIDDLE (diaphysis) of long bones
onion skinning (lamallated periosteal reaction)
small blue cells
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11
Q

osteosarcoma is associated with what?

A

rb –> look for sunburst pattern at the distal ends of long bones

Paget’s dz of the bone –> look for older man with high ALP and skeletal deformity

LiFraumini’s!

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12
Q

initial signs of compartment syndrome

A

pain with passive movement
parasthesias
swelling

loss of peripheral pulses are a LATE finding

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13
Q

age range of scpe? treatment?

A

13-15

femoral pinning through epiphysis

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14
Q

tx for fibromyalgia?

A

low dose TCA

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15
Q

osteogenesis iperfecta

A
BITE
bones
I (eyes)
teeth
ears --> hearing loss
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16
Q

dx of JIA (most common type)

A

<4 LARGE joints within 6 months

  • ant uveitis
  • inc ESR, ANA but nl RF
17
Q

systemic JIA (still’s dz)

A

> 1 joint + 2 week fever with multiple spikes + extraarticular manifestation**
-inc ESR, CRP, acute phase reactants

**migratory salmon pink rash, LAD, HSM

18
Q

labs in Paget’s dz of the bone

A

Inc ALP

Ca, PTH, Phos are normal because osteoclast/osteoblast activity are occurring simultaneously

hearing loss!

19
Q

osteoporosis tx in postmenopausal women at inc risk of breast cancer

A

raloxifen
+est agonist on bone
- est antagonist at breast and uterus

*inc risk of DVT

20
Q

how to manage suspected shoulder impingment?

A

lidocaine injection= tx/dx and can help distinguish between tendonopathy, which warrants conservative tx, and tear which warrants surgery

If this fails, move to MRI

21
Q

how to correct nurse maids elbow (radial head subluxation)

A

forced hyperpronation