Fixing plate for type II HOFFA bone fracture for lateral condyle of thighbone

A technology of fixing plate and femoral condyle, applied in the field of medical devices, can solve the problems of inconvenient fixation and unreliable fixation, and achieve the effects of convenient fixation operation, reliable fixation and good fit.

Active Publication Date: 2020-07-03
上海市第四人民医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a type II HOFFA fracture fixation plate of the femoral condyle in order to overcome the above-mentioned prior art defects of unreliable and inconvenient fixation of type II HOFFA fractures

Method used

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  • Fixing plate for type II HOFFA bone fracture for lateral condyle of thighbone
  • Fixing plate for type II HOFFA bone fracture for lateral condyle of thighbone
  • Fixing plate for type II HOFFA bone fracture for lateral condyle of thighbone

Examples

Experimental program
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Effect test

Embodiment 1

[0033] A kind of femoral condyle II type HOFFA fracture fixation plate, such as figure 1 As shown, it includes a fixed plate body with an integral structure and matches the anatomical shape of the lateral surface of the distal femoral condyle. The fixed plate body is "sickle-shaped" and made of a bendable titanium alloy plate with a thickness of 1.0 mm. The strength and tissue compatibility of the titanium alloy plate are reliable, and it can be cut, bent and shaped arbitrarily. It adapts well to the shape of the femoral condyle, can effectively maintain the fracture reduction of the femoral condyle, and at the same time protect the lateral collateral ligament from compression, stimulation, and wear.

[0034] Such as figure 1 As shown, the fixation plate body includes a head 1 that matches the shape of the side of the femoral condyle, a tail 3 that matches the shape of the side of the femoral shaft near the femoral condyle, and an intermediate connecting portion 2 that connec...

Embodiment 2

[0038] A kind of femoral condyle II type HOFFA fracture fixation plate, such as figure 1 As shown, it includes a fixed plate body with an integral structure and matches the anatomical shape of the lateral surface of the distal femoral condyle. The fixed plate body is "sickle-shaped" and made of a bendable titanium alloy plate with a thickness of 1.2 mm. The strength and tissue compatibility of the titanium alloy plate are reliable, and it can be cut, bent and shaped arbitrarily. It adapts well to the shape of the femoral condyle, can effectively maintain the fracture reduction of the femoral condyle, and at the same time protect the lateral collateral ligament from compression, stimulation, and wear.

[0039] Such as figure 1 As shown, the fixation plate body includes a head 1 that matches the shape of the side of the femoral condyle, a tail 3 that matches the shape of the side of the femoral shaft near the femoral condyle, and an intermediate connecting portion 2 that connec...

Embodiment 3

[0041] A kind of femoral condyle II type HOFFA fracture fixation plate, such as figure 1 As shown, it includes a fixed plate body with an integral structure and matches the anatomical shape of the lateral surface of the distal femoral condyle. The fixed plate body is "sickle-shaped" and made of a bendable titanium alloy plate with a thickness of 1.5 mm. The strength and tissue compatibility of the titanium alloy plate are reliable, and it can be cut, bent and shaped arbitrarily. It adapts well to the shape of the femoral condyle, can effectively maintain the fracture reduction of the femoral condyle, and at the same time protect the lateral collateral ligament from compression, stimulation, and wear.

[0042] Such as figure 1 As shown, the fixation plate body includes a head 1 that matches the shape of the side of the femoral condyle, a tail 3 that matches the shape of the side of the femoral shaft near the femoral condyle, and an intermediate connecting portion 2 that connec...

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Abstract

The invention relates to a fixing plate for a type II HOFFA bone fracture for lateral condyle of thighbone. The fixing plate comprises a fixing plate body, which is of an integrated structure and is matched with a side face of the lateral condyle of the thighbone in shape, wherein the fixing plate body comprises a head matched with a side face of a femoral condyle in shape, a tail matched with a side face, close to the femoral condyle, of a femoral stem in shape and a middle connecting part connecting the head and the tail; and the head is of an arc-shaped hooked structure, and a plurality offirst screw fixing holes are formed in the hooked structure and comprise vertical holes, which are formed in the surface of the hooked structure in a scattered manner, and inclined holes formed in thebottom of an arc. Compared with the prior art, the fixing plate has the advantages of safety, effectiveness, convenience in operation, and the like.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a type II HOFFA fracture fixation plate for the lateral femoral condyle. Background technique [0002] Fractures of the distal femur that are designed to reach the femoral condyle account for about 5%, of which cumulative femoral condyle fractures (ie HOFFA fractures) account for about 2%. This type of fracture is more common in high-energy injuries such as traffic accidents and high-altitude falls. The fracture end is unstable in the vertical and horizontal directions, which seriously affects the weight-bearing and walking functions of the knee joint. If the treatment is not good, the disability rate is extremely high. Except for cracked fractures, open reduction and internal fixation surgery is required. Since type II HOFFA fractures are small, close to the articular surface, and lack special fixation plates, plates or hollow nails in other parts are often used for fixa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/80
CPCA61B17/8057A61B17/8061A61B17/808
Inventor 李孟军王世强陆沛骅周斌华王骏
Owner 上海市第四人民医院
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