Influence of Different Surface Machining Treatments of Magnesium-based Resorbable Implants on the Degradation Behavior in Rabbits

verfasst von

Nina Von Der Höh, Dirk Bormann, Arne Lucas, Berend Denkena, Christian Hackenbroich, Andrea Meyer-Lindenberg

Abstract

The degradation behavior of magnesium-based implants with 0.8wt% calcium and different surface conditions for 3 and 6 months was investigated. The study used MgCa0.8 implants of 3mm × 5mm cylinders receiving different surface machining treatments. The sand-blasted implants were produced from smooth implants using a downstream irradiation process. Twenty-four female, adult New Zealand white rabbits with an average weight of 3.5 kg were used for the study and kept in standardized cages with free exercise daily. The degradation of MgCa-implants with various surface modifications was examined during the study. It was observed that the hole-shaped degradation started at the thread flank affected the core particles of the screw-shaped implants. The study also found that smooth implants showed the best integration into the bone compared to sand-blasted and threaded cylinders.

Organisationseinheit(en)

Institut für Fertigungstechnik und Werkzeugmaschinen

Externe Organisation(en)

Stiftung Tierärztliche Hochschule Hannover

Typ

Artikel

Journal

Advanced Engineering Materials

Band

11

Seiten

B47-B54

Anzahl der Seiten

8

ISSN

1438-1656

Publikationsdatum

05.2009

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Werkstoffwissenschaften (insg.), Physik der kondensierten Materie

Elektronische Version(en)

https://doi.org/10.1002/adem.200800273 (Zugang: Geschlossen)