Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1985-4-18
pubmed:abstractText
We describe here a Sprague-Dawley rat model for chronic osteomyelitis. Staphylococcus aureus and sodium morrhuate were implanted by either microdrilling or direct needle injection into the tibiae of rats. Of 107 rats, 87 (81%) developed osteomyelitis when a high-speed drill was used for implantation, and 27 (51%) of 53 rats developed osteomyelitis by direct needle inoculation (chi square = 9.81, P less than 0.01). Demonstrated histopathological changes included the presence of resorption bays filled with osteoclasts. Quantitative microbiological monitoring of tibial count confirmed disease chronicity, yielding stable numbers of CFU (10(6.29 +/- 0.27) ) of S. aureus over 70 days. Infected animals became anemic and lost weight. The erythrocyte sedimentation rates and leukocyte counts were not elevated. Roentgenograms provided the best correlation with the number of organisms in infected tibiae (r2 = 0.80). Rats with infected tibiae were treated with either oxacillin (120 mg/kg per day) or ceftriaxone (50 mg/kg per day). Treatment over 14 or 28 days reduced S. aureus counts in tibiae but did not reliably sterilize infected bones, suggesting that this model was resistant to prolonged antimicrobial therapy.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0019-9567
pubmed:author
pubmed:issnType
Print
pubmed:volume
47
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
581-6
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
Model of experimental chronic osteomyelitis in rats.
pubmed:publicationType
Journal Article