Femoral positioning method, personalized osteotomy guide plate and personalized prosthesis for total knee replacement

Abstract

The invention discloses a femoral positioning method, personalized osteotomy guide plate and personalized prosthesis for total knee replacement and relates to the technical field of total knee replacement. The femoral positioning method includes: detecting whether a three-dimensional digital femoral model is introduced in, wherein the three-dimensional digital femoral model is established based onscanning data of a patient's knee; if yes, using chromatography to position the three-dimensional digital femoral model to obtain at least one femoral distal osseous marker point. The femoral positioning method, personalized osteotomy guide plate and personalized prosthesis for total knee replacement can precisely position multiple osseous marker points at the distal end of the femur, and accuracy and repeatability are high; the personalized osteotomy guide plate is established according to the characteristics of femoral epicondylar axis and the three-dimensional reconstructed femoral distalsurface; the prosthesis is established by precise matching according to the characteristics of the femoral distal end after the personalized osteotomy guide plate is used to perform simulation osteotomy, and the prosthesis is applied to implementing of personal design.

Description

technical field [0001] The invention relates to the technical field of total knee replacement, in particular to a femur positioning method for total knee replacement, an individualized osteotomy guide plate and a prosthesis. Background technique [0002] Digital orthopedics is a new digital medical discipline that is based on orthopedic clinical practice and is closely integrated with computer image processing technology and digital technology. Through individualized surgical design and surgical simulation, it can improve clinical orthopedic surgical treatment effects, thereby promoting orthopedic technology to individuals. Development in the direction of automation, precision, minimally invasive and remote. In the past, the image data of bones and joints could only be obtained through computer X-ray tomography (CT) or magnetic resonance imaging (MRI) and other imaging equipment to obtain two-dimensional tomographic images, and such images are difficult to form a whole and c...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a femur positioning method for total knee arthroplasty, an individualized osteotomy guide plate and a prosthesis to solve the problem of inability to accurately locate the bony marker points of the distal end of the femur during preoperative design and operation. Especially the technical issues of a series of anatomical points that have an important reference role for the operation

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