In this study, the
biomechanicaleffects of four different configurations (Parallel K wires,
Parallel Screw, Upper K wire-Lower Screw, Upper Screw-Lower K wire), which are
used for stabilizing Salter-Harris (SH) Type 4 epiphyseal fracture of distal
femur after reduction process, on the epiphyseal plate has been investigated
under axial, rotational and bendingforces in order to determine the most
advantageous configuration. The fourdifferent configurations have been modeled
by using SolidWorks and computer-aided numerical analyses were performed by
finite element analysis software. The mesh process, boundary conditions and
material model have been applied in finite element analysis software for each
configuration. In addition, von-Mises stress values on epiphyseal plate, screws
and K wires have been calculated. There is a general near trend on stress
values in all configurations on physis line under bending (varus-valgus
angulation, anterior-posterior angulation) and torsional forces in the frontal,
sagittal and transverse plane respectively. Considering the axial forces, the
highest stress was found on parallel K- wires configuration in physis while the
lowest stress was found in parallel screw configuration. It has been found
particularly advantageous to use fixation type in parallel screw configuration.
In addition, in SH type 4 epiphyseal fracture, fixation type is found to be
disadvantageous in K wire configuration.
Primary Language | English |
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Subjects | Engineering |
Journal Section | Research Article |
Authors | |
Publication Date | March 1, 2020 |
Submission Date | October 25, 2018 |
Published in Issue | Year 2020 Volume: 23 Issue: 1 |
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