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

authored by

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.

Organisation(s)

Institute of Production Engineering and Machine Tools

External Organisation(s)

University of Veterinary Medicine of Hannover, Foundation

Type

Article

Journal

Advanced Engineering Materials

Volume

11

Pages

B47-B54

No. of pages

8

ISSN

1438-1656

Publication date

05.2009

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Materials Science(all), Condensed Matter Physics

Electronic version(s)

https://doi.org/10.1002/adem.200800273 (Access: Closed)