Joint infections and septic knee replacements

Question 1

early joint replacement infections are:

Answer 1

3 months are with MRSA and Gram neg bacilli

Question 2

late joint infections (3 months to 2 yrs after surger)

Answer 2

coagulase neg staph

p. acnes

Question 3

late infections in to a prosthetic joint is from

Answer 3

hematogenous spread from another infected site and rpesent with acute onset of arthralgia, fever, and leukocytosis.

Question 4

prosthetic joints aspirate should have

Answer 4

> 1100 WBC with neutrophil count>64% to be considered septic arthritis

Question 5

treatment of septic arthritis is

Answer 5

abx

for 6 weeks.