Customized far-end dissect type bone plate design method based on patient femur parameter

Abstract

The invention discloses a customized far-end dissect type bone plate design method based on patient femur parameters; the method comprises the following steps: leading in a patient fracture model, and measuring effective femur model parameters; using the effective femur parameters to build up a patient femur curved surface characteristic model, projecting a main fracture line to the femur model, restoring main fracture traces, and building up a femur fracture reset curved surface model; drafting a customized contour sketch on a femur sagittal surface, projecting the contour to the femur reset model, obtaining a local curved surface to form a femur binding surface, parameterizing the binding surface contour, and building up mapping between the femur parameters and the binding surface parameters; extending the binding surface outwards at unequal pitchs in a sagittal surface direction so as to build up a bone plate entity, defining entity characteristics, building up mapping between the binding surface and entity characteristic parameters, and forming bone plate characteristics; leading out the characteristics so as to generate a customized bone plate. The customized far-end dissect type bone plate design method uses patient femur parameters to directly and accurately build up the customized dissect type bone plate, can fast generate a same kind bone plate according to parametric modification, thus providing important meanings for customized design of the patient bone plate in a bone surgery.

Description

technical field [0001] The invention relates to a design technology of a personalized femoral bone plate, in particular to a method for quickly constructing a personalized distal anatomical bone plate based on femoral parameters, and the invention belongs to the field of computer-aided design. Background technique [0002] With the rapid development of computer digital technology and medical imaging technology, computer-assisted orthopedic surgery has become the fastest-growing field, and the research and application of orthopedic implant and prosthesis design using related computer technology has received widespread attention at home and abroad. The anatomy of the surface of the distal femur is complex, and the existing series of bone plates are difficult to fit the characteristics of the patient's femur fracture, which affects the treatment effect of the fracture; the personalized bone plate is specially designed and manufactured for a certain individual, with specific anat...

AI Technical Summary

Problems solved by technology

Its shortcomings mainly include: the design process is complicated; when the femoral part data is defective or severely comminuted, the normal femoral model cannot be accurately reset; it is difficult to express the relationship between the patient's femoral characteristic parameters and the personalized bone plate parameters

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