Relation between mouth and haematogenous infection in total joint replacements
- PMID: 8086903
- PMCID: PMC2542714
- DOI: 10.1136/bmj.309.6953.506
Relation between mouth and haematogenous infection in total joint replacements
Abstract
Objective: To investigate the source of infections associated with orthopaedic prostheses.
Design: Analysis of four infections of prosthetic joints with case records; minimum inhibitory and minimum bactericidal concentrations and sodium dodecylsulphate polyacrylamide gel electrophoresis of the cell wall polypeptides of the Streptococcus sanguis isolates from the mouth and infected prostheses; examination of the patients' mouths for periodontal disease and caries.
Subjects: Four adults (three men) aged 58-83.
Results: For each patient the strain of S sanguis isolated from the mouth was indistinguishable from that isolated from the prosthesis. All patients had severe periodontal disease and caries.
Conclusions: The mouth was probably the source of bacterial infection in the prosthetic joints of these patients; the route of infection was possibly haematogenous. Incipient oral infection should be treated before joint replacement, and oral health should be maintained indefinitely.
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