D Behrend1, M Warkentin, D Klüß, R Bader, S Kopp, M Frank, W Mittelmeier. 1. Lehrstuhl Werkstoffe für die Medizintechnik, Universität Rostock, Friedrich-Barnewitz-Str. 4, 18119, Rostock-Warnemünde, Deutschland, detlef.behrend@uni-rostock.de.
Abstract
BACKGROUND: Implant safety is a topic gaining more and more public interest. Implants are safety relevant medical devices which in the case of failure can lead to life-threatening situations. OBJECTIVES: A well-founded failure analysis requires expert knowledge not only of materials and implant design but also a qualified explantation procedure and storage conditions. METHODS: A selective literature search was carried out putting the main emphasis on implant failure analysis supplemented with own investigations. RESULTS: The reasons for implant breakdown are mostly failures of materials and in the manufacturing process. In some cases false material combinations can lead to tribocorrosion effects under cyclic loading. CONCLUSION: The increased level of knowledge gained from complex analyses of failed implants produces valuable evidence for better quality management.
BACKGROUND: Implant safety is a topic gaining more and more public interest. Implants are safety relevant medical devices which in the case of failure can lead to life-threatening situations. OBJECTIVES: A well-founded failure analysis requires expert knowledge not only of materials and implant design but also a qualified explantation procedure and storage conditions. METHODS: A selective literature search was carried out putting the main emphasis on implant failure analysis supplemented with own investigations. RESULTS: The reasons for implant breakdown are mostly failures of materials and in the manufacturing process. In some cases false material combinations can lead to tribocorrosion effects under cyclic loading. CONCLUSION: The increased level of knowledge gained from complex analyses of failed implants produces valuable evidence for better quality management.
Authors: Nicholas Bishop; Florian Witt; Robin Pourzal; Alfons Fischer; Marcel Rütschi; Markus Michel; Michael Morlock Journal: J Orthop Res Date: 2013-02-25 Impact factor: 3.494