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13 Cards in this Set

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  • Back
Acute infections occur within what time frame? What are the two components of treatment?
3 weeks
Washout & polyethylene exchange
IV antibiotics for 6 weeks
What is the most common etiologic organism overall?
Staphylococcus epidermidis
What is the most common organism after infection from dental surgery?
Peptostreptococcus
What laboratory test are highly specific for postoperative infection?
C-reactive protein (CRP)
Erythrocyte sedimentation rate (ESR)
What laboratory test is highly sensitive?
ESR
What is the problem with the use of aspiration as a diagnostic test?
High rate of false-positives (15%)
What is the problem with the use of aspiration as a diagnostic test?
Tissue culture
What is the bone scan appearance of infection?
Diffusely positive
If components are removed to treat a chronic infection, what is the duration of intravenous (IV) antibiotics?
6 weeks
What are the three criteria that must be met before replacement of arthroplasty components?
Normal clinical exam
ESR, CRP normal
Aspiration negative
What must be considered if significant soft tissue compromise exists at the time of replacement?
Arthrodesis
What is the long-term success rate of chronic antibiotic suppression?
20 to 40%
In an uninfected total joint, high postoperative CRPs may also be predictive of what?
Increased HO risk