Septic Arthritis Flashcards
1
Q
What are the most commonly affected joints with septic arthritis?
A
1) Knee (MC)
2) hip
3) Elbow
4) ankle
5) SC joint
2
Q
What are some situational specific organisms involved with septic arthritis?
A
Most common overall is s. aureus
1) young, sexually active; neisseria gonorrhea
2) Sickle cell; salmonella
3) Human bite; eikenella corrodens
4) IV drug abuse; pseudomonas
5) dog/cat bite; pasturella multocida
3
Q
When performing a saline load test to evaluate for a traumatic arthrotomy of the knee, a mininum of how much saline should be utilized?
A
155mL will reach 95% sensitivity, 175mL 99%
4
Q
What number of WBCs is diagnostic of a septic joint?
A
Native joints >50,000
TKA >1,100 and 64% neuts if >4weeks post-op; 10,700 if
