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Experimental and numerical analysis of augmented locking plate fixation repair for proximal humeral fractures
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- Author / Creator
- Begum, Farhana
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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. In addition, finite element models were developed for the quasi-static loading conditions. The results of the models followed trends similar to the experimental results and revealed the locations of the stresses distribution within the constructs.
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- Subjects / Keywords
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- Graduation date
- Fall 2011
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- Type of Item
- Thesis
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- Degree
- Master of Science
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- License
- This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.