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Hip joint prosthesis for use in femoral neck retention operation

A hip joint prosthesis and hip joint technology, applied in the field of hip joint replacement, can solve the problems of difficult second-stage revision and difficult revision surgery, and achieve the effect of improving comfort

Inactive Publication Date: 2020-10-30
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large amount of bone resected during the operation, the second-stage revision is often more difficult. Therefore, retaining the femoral neck artificial joint replacement has become one of the trends in young patients with THR.
[0004] The above-mentioned existing technical solutions have the following defects: femoral neck preservation is rarely used in China, and traditional THA (total hip arthroplasty, hereinafter referred to as THA) requires partial resection of the femoral neck of the hip joint. When patients need revision surgery, it will be difficult for revision surgery to a certain extent due to less bone reserve

Method used

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  • Hip joint prosthesis for use in femoral neck retention operation
  • Hip joint prosthesis for use in femoral neck retention operation
  • Hip joint prosthesis for use in femoral neck retention operation

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Embodiment Construction

[0033] The application will be described in further detail below in conjunction with the accompanying drawings.

[0034] refer to figure 1 , is a hip joint prosthesis for femoral neck-retaining surgery disclosed in the present application, comprising a hip joint femoral stem 1 and a femoral stem neck 2; the hip joint femoral stem 1 is divided into a femoral stem proximal end 11 and a femoral stem distal end 12 Two parts, femoral stem neck 2 is fixedly connected to the end of femoral stem 11 proximal end away from femoral stem distal end 12; , lining, metal cup, etc., to complete the implantation of the prosthesis.

[0035] refer to figure 2 with image 3 , the neck-shaft angle α of the femoral stem 1 of the hip joint is 130°, and the anteversion angle β is 15°; according to the data analysis of 1290 cases of Chinese bone database, the degree of α is obtained, and according to the data of Chinese people, the anteversion β of Chinese bones is mapped The angle is more in lin...

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Abstract

The invention relates to a hip joint prosthesis for use in a femoral neck retaining operation, and belongs to the technical field of hip joint replacement. The hip joint prosthesis comprises a hip joint femoral stem and a femoral stem neck. The cross section of the hip joint femoral stem is oval, the hip joint femoral stem has double taper, and the height of the hip joint femoral stem is smaller than that of a conventional hip joint femoral stem. The product has the effect of preventing the prosthesis from sinking and loosening.

Description

technical field [0001] The present application relates to the technical field of hip joint replacement, in particular to a hip joint prosthesis used in femoral neck-retaining surgery. Background technique [0002] In recent years, with the popularization of hip replacement technology and the improvement of the stem design of biological femoral prosthesis, the clinical application of biological short-stem prosthesis is increasing day by day. [0003] Total hip replacement remains the only effective treatment for young patients with end-stage hip disease. However, due to the large amount of bone resected during the operation, the second-stage revision is often difficult. Therefore, artificial joint replacement with femoral neck retention has become one of the trends in THR for young patients. [0004] The above-mentioned existing technical solutions have the following defects: femoral neck preservation is rarely used in China, and traditional THA (total hip arthroplasty, here...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/36
CPCA61F2/3609A61F2002/3625A61F2002/365A61F2002/3652A61F2002/3093
Inventor 解凤宝史春宝王昆博郝孟娟
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR
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