2022
DOI: 10.1111/os.13537
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The Impact of Coronal Configuration of the Proximal Femur on its Mechanical Properties and the Validation of a New Theoretical Model: Finite Element Analysis and Biomechanical Examination

Abstract: Objective: This study aims to establish the coronal configuration of the proximal femur as an independent factor for its mechanical properties and provide validation for the theoretical model "fulcrum-balance-reconstruction." Methods:The digital 3D femur model constructed with the lower extremity high-resolution computed tomography of a senior subject was applied with the axial compression of 2100N under 5 different α angles of 10 , 5 , 0 , À5 , À10 . The equivalent stress distribution of the femoral geometric… Show more

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Cited by 3 publications
(2 citation statements)
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“…When the stress cannot be balanced, the internal fixation system faces the risk of failure. We preliminarily verified our theory through the mechanical analysis of different coronal posture of femur and the finite element analysis of proximal femoral bionic nail (PFBN) which simulates the structure of tension and pressure trabeculae of the femur 39,40 . Lateral wall fracture destroys the stable mechanical conduction system of the lateral femoral cortex (Figure 1, lower right) and also loses the support of the secondary trabeculae, so we designed the PFTBN which can reconstruct the mechanical conduction of the lateral wall.…”
Section: Methodsmentioning
confidence: 74%
See 1 more Smart Citation
“…When the stress cannot be balanced, the internal fixation system faces the risk of failure. We preliminarily verified our theory through the mechanical analysis of different coronal posture of femur and the finite element analysis of proximal femoral bionic nail (PFBN) which simulates the structure of tension and pressure trabeculae of the femur 39,40 . Lateral wall fracture destroys the stable mechanical conduction system of the lateral femoral cortex (Figure 1, lower right) and also loses the support of the secondary trabeculae, so we designed the PFTBN which can reconstruct the mechanical conduction of the lateral wall.…”
Section: Methodsmentioning
confidence: 74%
“…We preliminarily verified our theory through the mechanical analysis of different coronal posture of femur and the finite element analysis of proximal femoral bionic nail (PFBN) which simulates the structure of tension and pressure trabeculae of the femur. 39 , 40 Lateral wall fracture destroys the stable mechanical conduction system of the lateral femoral cortex (Figure 1 , lower right) and also loses the support of the secondary trabeculae, so we designed the PFTBN which can reconstruct the mechanical conduction of the lateral wall. On the basis of the traditional PFNA design, there are five components of PFTBN: the pressure screw simulating primary pressure trabeculae replaced the helical blade (purple neck screw), the tension screw (light blue neck screw) simulating primary tension trabeculae which is perpendicular to the main nail and is placed from the lateral side of the greater trochanter, the lateral wall screw (blue oblique screw) simulating lateral wall added from the tail of the pressure screw perpendicularly passing through the lateral cortex and anchored to the medial cortex and distal locking screw (Figure 2 ).…”
Section: Methodsmentioning
confidence: 99%