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Case Reports in Orthopedics
Volume 2016 (2016), Article ID 7049130, 5 pages
Case Report

A Case of Implant Failure in Partial Wrist Fusion Applying Magnesium-Based Headless Bone Screws

Department of Trauma, Hand and Reconstructive Surgery, University Faculty of Medicine Rostock, Schillingallee 35, 18057 Rostock, Germany

Received 18 July 2016; Accepted 14 September 2016

Academic Editor: Zbigniew Gugala

Copyright © 2016 Alice Wichelhaus et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This article presents a case of implant failure resulting in mechanical instability of a scaphotrapezotrapezoideal arthrodesis using magnesium-based headless bone screws. During revision surgery osteolysis surrounding the screws was observed as well as degraded screw threads already in existence at 6 weeks after implantation. The supposed osseous integration attributed to magnesium-based screws could not be reproduced in this particular case. Thus, it can be reasoned that the use of magnesium-based screws for partial wrist arthrodesis cannot be encouraged, at least not in dual use.