Man-Yong Han
Mun-Sik Ko
Man-Gil Han
Tong-Won Mun
Sung-Chol Ri
Tae-Bom Choe
Abstract
Even though intramedullary nailing of femoral shaft fracture is
the standard surgical treatment as it is in tibial fracture, plate fixation might be a choice when
the fracture involves open growth plate, patients are of shorter stature or have narrow canals.
In these cases, fixation techniques with plate and screws, for example, percutaneous
procedures involving wave plate, are useful thanks to minimal invasion and preservation of
biological environment surrounding the fractures. However, this shape results in restricted
weight bearing for postoperative 2 to 3 months and no availability to poor soft-tissue situation
due to prominence. The purpose of the present study was to recommend optimal angle of
central curved segment of wave plate when sustained fixation of femoral shaft fractures with
wave plating by comparing biomechanical stability provided by fixations of wave plates with
different angles of central curved segment. Method: Based on CT scans of the femur of
human and wave plate, 3D-finite element models of femoral shaft fractures stabilized by wave
plating were built to be analyzed for their biomechanical characteristics with ANSYS
WORKBENCH programme when applied 3 types of loads including axial compression,
antero-posterior bending and torsion. Results: The wave plate with 15° of central curved
segment presented minimum stiffness of 122.0MPa, 52.2MPa, and displacements of 4.0mm,
2.0mm compared with those measured in fixations by wave plates with 10°, 20° and 25° of
central curved segments under axial compression and antero-posterior bending. Torsion loads,
however, produced stiffness which increase and displacements which decrease according to
increase of the angles. Conclusion: It is biomechanically the most stable to choose a wave
plate with 15° of central curved segment, when treated femoral shaft fractures with wave
plating.
Keywords: wave, plate, fracture, stiffness, deformity
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Research & Reviews : Journal of Surgery
| Volume | |
| Received | February 27, 2024 |
| Accepted | February 28, 2024 |
| Published | March 30, 2024 |