Infections Flashcards
1
Q
RF of septic arthritis
A
- increasing age
- diabetes mellitus
- rheumatoid arthritis
- prosthetic joints
- intravenous drug abuse
- skin infection
- alcohol use
- sexual activity
2
Q
causes of septic arthritis (organisms)
A
- S. aureus
- Streptococcus
- Neisseria gonorrhoea: sexually active pt
- Pseudomonas aeruginosa: HAI
- Mycobacterium tuberculosis
3
Q
Empiric abx tx of septic arthritis
A
gram pos: vancomycin
gram neg: 3rd gen cephalosporin - ceftriaxone
4
Q
x ray features of OM
A
- osteopenia, rarefaction
- erosions
- periosteal reaction (early)
- cortical sclerosis (chronic)
5
Q
x ray features of septic arthritis
A
- widened joint space
- periarticular osteoporosis (early)
- erosions (late)
6
Q
complications of OM
A
- spread: septic arthritis, metastatic OM
- growth disturbance: shortening, deformity
- chronic OM
7
Q
mgx of OM
A
Empiric Abx (cloxacillin, cephalosporin)
Analgesia
CRIB + splintage
Drainage
