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

A technology of total knee replacement and positioning method, which is applied in the field of total knee replacement, can solve problems such as the inability to accurately locate the bony marker points of the distal femur, and achieve high accuracy and repeatability

Inactive Publication Date: 2018-09-04
THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY
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  • Abstract
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  • Application Information

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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 ac...

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

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Embodiment Construction

[0054] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the implementation examples in the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0055] At present, in total knee arthroplasty (Total knee arthroplasty, TKA), there is a lack of relevant methods for the precise positioning of the bony marker points of the distal femur, especially on the inner femur, which is very important for determining the rotational force line of the distal femur. The location of the most concave point of the condyle and the highe...

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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...

Claims

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Application Information

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IPC IPC(8): A61B17/16A61B17/17A61B34/10A61B90/11A61F2/38A61F2/30
CPCA61B17/1657A61B17/1675A61B17/1732A61B17/1764A61B34/10A61B90/11A61B2034/104A61B2034/105A61B2034/108A61F2/30771A61F2/30942A61F2/3859A61F2/3877A61F2/389A61F2002/30011A61F2002/30784A61F2002/30985
Inventor 黄伟向柄彦吴向东徐伟田冕贺尧刘尊翰李飞龙陶宇章秦磊磊
Owner THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY
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