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The Basic Theory Research in the Personalized Anatomic Plate of Distal Femoral Using Computer-aided Design and Manufacture

Author: ZhangYunPeng
Tutor: RenLongZuo
School: Shanxi Medical
Course: Surgery
Keywords: Three-dimensional reconstruction Digital technology Femur fractures , distal Fracture fixation, internal Individuation
CLC: R687.3
Type: Master's thesis
Year: 2010
Downloads: 31
Quote: 0
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Abstract


Objective: 1. Use CT raw data to establish a three-dimensional solid model of distal femoral fractures after analog reset. 2. Distal femoral fractures to establish the anatomic bone plate of the distal femur personalized three-dimensional solid model to simulate three-dimensional solid model after reset. Methods: one case of male distal femur fractures were treated by 64 rows of raw data obtained by thin slice CT scan. And save the output to Dicom format, imported into Mimics software for processing, three-dimensional solid model of the distal femur fracture simulation reset. Output in IGES format and save imported into Geomagic software, complete IGES point cloud data model to the multilateral model and grid structure, closed last conversion is to meet the requirements of NURBS surface models. The IGES format femur surface model file into UG software, select the best bone plate fitting surface, according to surgical experience and requirements in the femoral surfaces affixed together at the outer surface of the femur bone plate cutting down in accordance with the design requirements as this surface, wherein the surface modeling features, the design of the upper and side surfaces of the plates, forming a cavity of the bone plate model, the entity after the model data of the personalized plates. Save data in STL format file. Reference the Mimics software in the the bones reset circumstances determine the best position of the bone plate screws punch punch and screws direction. Determine the location of the screw holes in the UG software and design screw holes. Mimics software measurement results, the appropriate choice of screw UG software virtual assembly in accordance with the surgical requirements. Screws saved in STL format files. The bone plate and screws file import Mimics software, wherein after reset femur comparison, an operator may be according to the assembly diagram Check plates in Mimics software design, design of the screw holes, screw into the position and the orientation is reasonable. Designed Plates the UG software Plates CNC programming. Generate NC code is then input to the CNC machine tools. Anatomical bone plate the distal femur personalized design process, while the recovery distal femur bone processing. Processing a personalized anatomical bone plate assembly in the processing of the distal femur bones model contrast with standardized anatomical bone plate assembly effect. Results: 1. Complex fractures of distal three-dimensional solid model. 2. Complex distal femur fractures analog reset after the three-dimensional solid model. 3. Establishing three-dimensional solid model of a the anatomic bone plate of the distal femur personalized three-dimensional solid model and the distal femur personalized anatomical bone plate screw system assembly. 4. Processing a the distal femur personalized anatomical model of the bone plate and the distal femur bones model. Conclusion: CT raw data to establish the distal femur complex three-dimensional solid model reset after the fracture simulation, realistic appearance of the model, close to the real situation, preoperative planning guide clinical diagnosis and treatment. Anatomical bone plate of the distal femur personalized three-dimensional solid model established with good bone surface to fit and screw holes design, demonstrating the application space with good prospects for development.

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CLC: > Medicine, health > Surgery > Orthopaedic Surgery ( movement system diseases,orthopedic surgery ) > Orthopedic surgery and surgery > Bone surgery
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