Biomechanical Analysis of the Fixation System for T-Shaped Acetabular Fracture.
This study aims to evaluate the biomechanical mechanism of fixation systems in the most frequent T-shaped acetabular fracture using finite element method. The treatment of acetabular fractures was based on extensive clinical experience. Three commonly accepted rigid fixation methods (double column reconstruction plates (P × 2), anterior column plate combined with posterior column screws (P + PS), and anterior column plate combined with quadrilateral area screws (P + QS)) were chosen for evaluation. On the basis of the finite element model, the biomechanics of these fixation systems were assessed through effective stiffness levels, stress distributions, force transfers, and displacements along the fracture lines. All three fixation systems can be used to obtain effective functional outcomes. The third fixation system (P + QS) was the optimal method for T-shaped acetabular fracture. This fixation system may reduce many of the risks and limitations associated with other fixation systems.
Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, 79 Yingze West Street, Taiyuan 030024, China.
Yanping
Y
Fan
Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, 79 Yingze West Street, Taiyuan 030024, China.
Jianyin
J
Lei
Bioengineering Center, Wayne State University, Detroit, MI 48201, USA.
Feng
F
Zhu
Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, 79 Yingze West Street, Taiyuan 030024, China.
Zhiqiang
Z
Li
Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, 79 Yingze West Street, Taiyuan 030024, China.
Weiyi
W
Chen
Department of Orthopedics, Wuhan General Hospital of Guangzhou Command, 627 Wuluo Road, Wuhan 430070, China.
Ximing
X
Liu
D000077:Acetabulum / Q000293:injuries* / Q000473:pathology / Q000601:surgery; D001696:Biomechanical Phenomena; D001860:Bone Plates; D001863:Bone Screws; D020342:Finite Element Analysis; D005593:Fracture Fixation, Internal / Q000295:instrumentation* / Q000706:statistics & numerical data; D050723:Fractures, Bone / Q000503:physiopathology* / Q000601:surgery*; D006801:Humans; D021621:Imaging, Three-Dimensional; D008953:Models, Anatomic; D008954:Models, Biological; D015233:Models, Statistical