Bacterial Adherence to Titanium, Poly-L-Lactic Acid, and Composite Hydroxyapatite and Poly-L-Lactic Acid Interference Screws
| Autor: | Daniel J. Stinner, Tad L. Gerlinger, Brendan D. Masini, Scott M. Waterman, Joseph C. Wenke |
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| Rok vydání: | 2012 |
| Předmět: |
musculoskeletal diseases
Poly l lactic acid Implant surface Polymers Polyesters Bone Screws Composite number chemistry.chemical_element Biocompatible Materials Bacterial counts Bacterial Adhesion In vitro model chemistry.chemical_compound Materials Testing Medicine Lactic Acid Titanium business.industry Metallurgy Equipment Design General Medicine Interference screws musculoskeletal system equipment and supplies Bacterial Load Lactic acid Durapatite surgical procedures operative chemistry business Biomedical engineering |
| Zdroj: | Journal of Surgical Orthopaedic Advances. 21:237-241 |
| ISSN: | 1548-825X |
| DOI: | 10.3113/jsoa.2012.0237 |
| Popis: | This study investigates a potential site of bacterial adherence, the implant surface, comparing titanium, poly-L-lactic acid (PLLA), and composite hydroxyapatite and poly-L-lactic acid (PLLA-HA) interference screws using a bioluminescent in vitro model. Interference screws of three materials, titanium (Arthrex, Naples, FL), bioabsorbable poly-L-lactic acid (BIORCI, Smith & Nephew, Andover, MA), and bioabsorbable composite hydroxyapatite and poly-L-lactic acid (BIORCI-HA, Smith & Nephew, Andover, MA) were immersed in a broth of bioluminescent Staphylococcus aureus. The screws were irrigated and then imaged with a photon-capturing camera system yielding a total photon count correlating with residual adherent bacteria. The titanium screws had the lowest mean total bacterial counts followed by the PLLA-HA screws and with the PLLA screws having the highest mean total counts. The difference in means between the titanium group and the PLLA group was statistically significant (p < .001). Titanium interference screws have less bacterial adherence than comparable bioabsorbable PLLA screws. |
| Databáze: | OpenAIRE |
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