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Femoral condyle measuring device used for unicompartmental knee arthroplasty

A technology of unicompartmental replacement and femoral condyle, which is applied in the direction of joint implants and joint implants, can solve the problems of high requirements for radiography and inaccurate results, and achieve the effect of accurate measurement and simple and convenient operation

Active Publication Date: 2014-05-07
SHANGHAI YANGPU CENT HOSPITAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has high requirements for filming, and is usually affected by the quality of filming, zoom ratio, and operator experience, and the results are very inaccurate

Method used

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  • Femoral condyle measuring device used for unicompartmental knee arthroplasty
  • Femoral condyle measuring device used for unicompartmental knee arthroplasty
  • Femoral condyle measuring device used for unicompartmental knee arthroplasty

Examples

Experimental program
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Embodiment Construction

[0026] ginseng figure 1 , a femoral condyle measuring instrument for unicondylar replacement, the femoral measuring instrument includes a positioning part 1 and a measuring part 2; the positioning part 1 and the measuring part 2 are detachably connected through a connecting part 3;

[0027] The positioning part 1 is provided with a first positioning protrusion 11 and a second positioning protrusion 12;

[0028] The measuring part 2 is in the shape of an arc hook; when the positioning part 1 is connected to the measuring part 2, the protruding direction of the first positioning protrusion 11 is parallel to and facing the same direction as the radial direction at the midpoint of the arc hook of the measuring part 2;

[0029] This Femoral Condyle Gauge is used with Guide 4 for Unicompartmental Replacement, see figure 2 , The guide 4 is provided with a first positioning hole 41 for installing the prosthesis, and a second positioning hole 42 is also provided thereon. Such as f...

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Abstract

The invention relates to a femoral condyle measuring device used for unicompartmental knee arthroplasty. The femoral condyle measuring device is matched with a guider of the unicompartmental knee arthroplasty for use; the femoral condyle measuring device comprises a positioning part and a measuring part; the positioning part is connected with the measuring part in a detachable manner. The femoral condyle measuring device used for the unicompartmental knee arthroplasty can be directly used for intraoperative measurement; compared with traditional preoperative photograph indirect measurement, the intraoperative measurement is not affected by the quality of the photographs and other factors, so that the measurement is more precise; moreover, according to the requirement of operations, different measuring parts can be arranged corresponding to different radiuses of prostheses; the measuring part is directly inserted in the femoral condyle, so that the operation is simple and convenient.

Description

technical field [0001] The invention relates to a femoral condyle measuring device for unicompartmental replacement. Background technique [0002] Osteoarthritis is a common chronic joint disease that occurs mostly in the heavily loaded knee joint. The knee joint is divided into three compartments, the medial compartment, the lateral compartment, and the patella compartment. Arthritis of the knee can affect any of these compartments. [0003] Unicondylar knee arthroplasty (UKA) is a surface replacement of the diseased compartment only, but currently it is mainly for medial condyle replacement. [0004] Unicompartmental Knee Arthroplasty (UKA) refers to the surface replacement of only the medial or lateral compartment of the knee joint, and its main purpose is to replace the damaged cartilage surface of the tibiofemoral knee joint. However, early reports of its surgical outcomes were unsatisfactory, and its use was gradually neglected by many surgeons due to the poor resul...

Claims

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Application Information

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IPC IPC(8): A61F2/46
Inventor 涂意辉马童薛华明蔡珉巍文涛
Owner SHANGHAI YANGPU CENT HOSPITAL
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