msk infections Flashcards
septic arthritis
-usually bacterial caused by: -adjacent osteomyelitis -local soft tissue infection -diagnostic or therapeutic procedure (iatrogenic) -hematogenous
hematogenous infection
- most common cause of native joint infection
- from bacteria in blood (staph and strep)
prosthetic joint infection
- usually from surgery or cutting
- bacteria stick to metal
native joint septic arthritis
-s aureus, n gonorrohea
prosthetic joint infection
s aureus and p acnes (CNST)
treatment for native joint
antimicrobial therapy and/or surgical washout
treatment for prosto joint infection
-antibiotics, take out joint (keep taking antib), put joint back in
or
-exchange, amputate, I and D with abx, abx alone
native joint outcomes
- low mortality
- 1/3 have poor joint outcome
pji outcome
-highly variable!
do you need prophy with abx prior to dental procedures
NO!
even if they have joint prosthesis or prior septic arthritis
why is prophy not needed for dental procedure
bc not caused by oral bacteria flora
- can still get bacteremia even with prophy
- abx issues
osteomyelitis
- infection or inflammation of the bone
- usually bacterial
- traumatic, hematogenous, iatrogenic, contiguous
which group of people are prone to osteomyelitis
neonates
brodie’s abscess
tibia gets hollow and periosteum gets thick (inflammation within bone)
osteomyelitis treatment
- antimicrobial therapy
- if bacteria stick to dead bone, need surgical debridement
