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Type: Journal article
Title: Construction and biomechanical properties of polyaxial self-locking anatomical plate based on the geometry of distal tibia
Author: Liang, W.
Ye, W.
Ye, D.
Zhou, Z.
Chen, Z.
Li, A.
Xie, Z.
Zhang, L.
Xu, J.
Citation: BioMed Research International, 2014; 2014:436325-1-436325-7
Publisher: Hindawi Publishing Corporation
Issue Date: 2014
ISSN: 2314-6133
Statement of
Weiguo Liang, Weixiong Ye, Dongping Ye, Ziqiang Zhou, Zhiguang Chen, Aiguo Li, Zong-Han Xie, Lihai Zhang, and Jiake Xu
Abstract: In order to provide scientific and empirical evidence for the clinical application of the polyaxial self-locking anatomical plate, 80 human tibias from healthy adults were scanned by spiral CT and their three-dimensional images were reconstructed using the surface shaded display (SSD) method. Firstly, based on the geometric data of distal tibia, a polyaxial self-locking anatomical plate for distal tibia was designed and constructed. Biomechanical tests were then performed by applying axial loading, 4-point bending, and axial torsion loading on the fracture fixation models of fresh cadaver tibias. Our results showed that variation in twisting angles of lateral tibia surface was found in various segments of the distal tibia. The polyaxial self-locking anatomical plate was constructed based on the geometry of the distal tibia. Compared to the conventional anatomical locking plate, the polyaxial self-locking anatomical plate of the distal tibia provides a better fit to the geometry of the distal tibia of the domestic population, and the insertion angle of locking screws can be regulated up to 30°. Collectively, this study assesses the geometry of the distal tibia and provides variable locking screw trajectory to improve screw-plate stability through the design of a polyaxial self-locking anatomical plate.
Keywords: Prostheses and Implants
Rights: Copyright © 2014 Weiguo Liang 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.
RMID: 0030016372
DOI: 10.1155/2014/436325
Appears in Collections:Mechanical Engineering publications

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