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Electromagnetic stimulation on the bone growth using backscattered electron imaging.

V Ottani·M Raspanti·D Martini·G Tretola·A Ruggeri·M Franchi·G Giuliani Piccari
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Abstract

The events at the hydroxyapatite implant material/tissue interface following electromagnetic stimulation were studied in the rabbit. Two kinds of hydroxyapatite were used: natural (NA) and synthetic (HA) both with a grain size of <50 microm. Bone defects, artificially created in rabbit tibiae, were filled with the material examined. One group of animals was exposed immediately after surgery and every 12h thereafter to 30-min treatments with electromagnetic fields (PEMFs). A second group was used as a control (untreated). Two and 4 weeks after implantation, animals were sacrificed and bone samples processed for LM, TEM and SEM using a backscatter electron detector for the evaluation of bone growth. This study indicates that HA has more osteoconductivity than NA, and shows that PEMF-treatment results in a benefit in accelerating bone formation at early time periods.

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AnimalsBiocompatible MaterialsBone DevelopmentDurapatiteElectric StimulationElectromagnetic FieldsFemaleMicroscopy, Electron, ScanningProstheses and ImplantsRabbitsTibiaJournal ArticleResearch Support, Non-U.S. Gov't

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V Ottani, M Raspanti, D Martini, G Tretola, A Ruggeri, M Franchi, G Giuliani Piccari. 2002. Electromagnetic stimulation on the bone growth using backscattered electron imaging.. https://doi.org/10.1016/s0968-4328(01)00008-7

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