OM II

Question 1

treatment?

Answer 1

antibiotics

surgical debridement

Question 2

most common pathogen in OM?

in DM patients?

Answer 2

staph

polymicrobial

Question 3

common empiric for OM tx?

Answer 3

vancomycin IV

Zosyn IV

Question 4

major considerations when performing the clinical exam when differentiating between OM and Charcot?

Answer 4

presence of ulceration prior to charcot like symptoms inicates OM

direct probe to bone increasing probability of OM

minimal neuropathy indicates OM

no h/o ulceration points to charcot

Question 5

name this imaging, determine if OM or charcot:

mono ostotic affected in early stages

isolated cortical erosion without joint subluxation

correlation with clinical ulceration

toes, forefoot, calcaneus more common

Answer 5

OM

Question 6

name this imaging, determine if OM or charcot:

subluxation/fragmentation across multiple joints

structural deformity more common

poly-ostotic

midfoot most common

Answer 6

charcot

Question 7

how does charcot present on Tc-99 sulfur colloid scan?

Answer 7

bone resorptionm bone production

-shows up hot

Question 8

how does OM present on Tc-99 sulfur colloid scan?

Answer 8

dead bone replaces healthy bone marrow

-shows up cold Tc-99 sulfur colloid but hot In-111

Question 9

what is the gold standard for for OM diagnosis?

Answer 9

bone biopsy