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Direct-Contact Low-Frequency Ultrasound and Pulse Lavage Eradicates Biofilms on Implant Materials In Vitro
- Source :
- Evidence-based Complementary and Alternative Medicine : eCAM, Evidence-Based Complementary and Alternative Medicine, Vol 2021 (2021)
- Publication Year :
- 2021
-
Abstract
- Pulse lavage (PL) debridement and ultrasound are both known to be the treatment of biofilm-related periprosthetic joint infection (PJI). However, the efficacy of these in combination is unknown in eradicating biofilm from the orthopaedic metal implant surface. This study was conducted to understand the efficacy of PL and ultrasound in combination in eradicating bacterial biofilms on titanium alloy in vitro. Biofilms of Staphylococcus aureus strains were grown on titanium alloy coupons for 24 h. Then, the coupons were taken to each treatment group: (i) debrided with PL, (ii) exposed to ultrasound, or (iii) exposed to both. An untreated biofilm was set as a control group. Viable plate count and confocal microscopy using live/dead staining was used to measure the amount of biofilm. Viable plate count showed an approximate two-log reduction in CFU/cm2 in PL alone, from an initial cell count on the mental surface of approximately 109 CFU/cm2. The ultrasound caused an approximate seven-log reduction, and the combination group eradicated viable biofilm bacteria completely. Confocal imaging corroborated the CFU data. Our results indicate that PL and ultrasound both are remarkably in eradicating biofilm, and the combination of PL and ultrasound is more effective than alone in reducing biofilm.
- Subjects :
- Debridement
Article Subject
Chemistry
business.industry
medicine.medical_treatment
Ultrasound
Biofilm
Periprosthetic
biochemical phenomena, metabolism, and nutrition
medicine.disease_cause
Staining
law.invention
Other systems of medicine
Complementary and alternative medicine
Staphylococcus aureus
Confocal microscopy
law
medicine
Implant
business
RZ201-999
Biomedical engineering
Research Article
Subjects
Details
- ISSN :
- 1741427X
- Volume :
- 2021
- Database :
- OpenAIRE
- Journal :
- Evidence-based complementary and alternative medicine : eCAM
- Accession number :
- edsair.doi.dedup.....da27f0862f22bc0d777974114be37b0f