Abstract
ABSTRACTObjective:The aim of the present study was to determine whether the side of application of the plate itself affects the mechanical stability of the fixation. The specific question addressed is whether or not a lateral or medial plate application is biomechanically better, for the treatment of distal diaphysis fractures of the femur.Methods:Stability and stiffness of medial sided plating relative to the conventional lateral sided plating in distal diaphysis of the femur were measured by analyzing axial loading forces leading to implant failure. Sixty synthetic femurs were tested in physiological bending, to calculate the yield and ultimate load to displacement following fixation of distal diaphysis fractures of the femur by either medial or lateral sided plating. Axial loading was applied to samples using a uniaxial testing machine.Results:There was more implant deformation in the lateral sided plating group – a difference with statistical significance.Conclusion:Medial sided plating was found to be as stiff as lateral plating. Medial plating may be a reasonable treatment option that can be used safely in selected cases. Level of Evidence I, Therapeutic Studies Investigating the Results of Treatment
Highlights
The standard treatment for femoral shaft fractures is intramedullary nailing.[1]
A plate osteosynthesis is advantageous in certain situations
It was noted that there was a significant difference in yield displacement values between medial sided plating and the conventional lateral sided plating in the distal diaphysis of the femur specimens (Figure 6)
Summary
The standard treatment for femoral shaft fractures is intramedullary nailing.[1]. a plate osteosynthesis is advantageous in certain situations. It is known that the tension side of the femur, which is the lateral side, transfers to the anterior side at the distal part.[8,9] the compression side of the femur is the medial aspect proximally, whereas it is the dorsal aspect distally. Based on this information we hypothesized that a plate applied to the lateral or medial side of the femur in distal diaphyseal femoral fractures acts as a compression device. The purpose of this study was to compare the biomechanical behaviors of medial and lateral sided plating in synthetic femurs with fractured distal diaphysis, by analyzing axial loading forces leading to implant failure
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