Design and Analysis of Customized Fixation Plate for Femoral Shaft
Tóm tắt
In the recent years, several techniques have been used to treat femur diaphyseal fracture. Among all the traditional fixation techniques, unstable fixation remains the biggest challenge for orthopedists. Researchers have recommended new approaches to deal with diaphyseal femur fracture. However, solely few had been successful in getting some better results. In the present work, a methodology comprising of design and finite-element analysis of a counter fit customized fixation plate has been suggested to provide a stable fixation. In the present work, reverse engineering (RE) approach has been invoked to create a 3D model of a fresh fractured femur diaphysis bone using the computed tomography (CT) scan data available in digital imaging and communications in medicine (DICOM) format. To provide stable fixation, a counter fit customized fixation plate at medial side has been designed and simulated under static physiological loading conditions for three different biocompatible materials, viz., titanium alloy (Ti6Al4V), stainless steel (SS-316L), and cobalt–chromium–molybdenum alloy (Co–Cr–Mo). Static stress distribution and deformation analysis of the clinical setup have been performed for the aforementioned materials. It has been observed that the stresses and deformation developed in all the materials are quite low. It implies that customized fixation plates will provide stable fixation resulting in improved fracture union. The proposed work will assist the medical practitioners regarding the design and analysis of customized implants. This will reduce the post surgical failures and residual pain due to non-union fractured region.
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