tailieunhanh - Experimental and Numerical Analysis of Augmented Locking Plate Fixation Repair for Proximal Humeral Fractures

Failure of locking plate fixation due to varus collapse is a common problem for the elderly population who have osteoporotic bone with comminuted fractures. However, it is possible to increase the stability and the stiffness of the fixation system by using intramedullary fibular graft. This study compares the effectiveness of the augmented versus non-augmented locking plate fixation under clinically relevant cyclic loading. Nine pairs of cadaveric humeri were utilized with one side fixated using the augmented system and the other using the non-augmented one. Analysis of the results revealed that the augmented constructs can withstand at least three times the number of cycles to failure than the other one. | University of Alberta Experimental and Numerical Analysis of Augmented Locking Plate Fixation Repair for Proximal Humeral Fractures by Farhana Begum A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Masters of Science in Structural Engineering Civil Environmental Engineering Department Farhana Begum Fall 2011 Edmonton Alberta Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private scholarly or scientific research purposes only. Where the thesis is converted to or otherwise made available in digital form the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and except as herein before provided neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author s prior written permission. Examining committee Dr. Samer Adeeb Civil Environmental Engineering Dr. Jason Carey Mechanical Engineering Dr. Marwan El-Rich Civil Environmental Engineering Dr. Martin Bouliane Division of Orthopaedic Surgery Dr. Donald Raboud Mechanical Engineering Dedication To Amma. I know you prayed for me and I wish you were here to share this moment with