Multifunctional thighbone femoral stem prosthesis

Abstract

The invention discloses a multifunctional thighbone femoral stem prosthesis. The multifunctional thighbone femoral stem prosthesis comprises an upper base, a hollow body and a lower cone, and the whole is an 'inversed' cone-shaped body from top to bottom; the hollow body is composed of four metal vertical bars and metal vertical nets, the tops of the four metal vertical bars are all fixed to the bottom edge of the upper base, and the bottoms of the four metal vertical bars are all fixed to the top edge of the lower cone; crushed bone blocks are placed in the hollow body; a vertical interval isformed between every two adjacent metal vertical bars, and the vertical intervals are internally provided with the metal vertical nets. It is known from the structure of the multifunctional thighbonefemoral stem prosthesis that the prosthesis is provided with the hollow body, and the broken bone blocks are placed in the hollow body to achieve postoperative healing of the crushed bone blocks andproximal femur bones, play the role of bone graft healing, and prevent the prosthesis from loosening and sinking; the bilaterally opposite two intervals are internally set to be hollow, which can be helpful for pasting a steel plate to the outer side of a fracture after the secondary injury fractures, and then screwing the bilaterally opposite two intervals for locking to achieve reliable reduction fixation and later long-term firm fixation.

Description

technical field [0001] The invention relates to the medical field, in particular to a multifunctional femoral stem prosthesis. Background technique [0002] Recently, there are more than 1 million hip replacements worldwide every year. Complications such as femoral stem prosthesis loosening and sinking, periprosthetic fractures, and postoperative dislocation often require reoperation, which increases the physical and psychological trauma and economic burden of patients. The shape of the femoral stem prosthesis is similar, but the material and surface structure are different. The stem is mostly made of microporous, coral surface and other structures to promote bone ingrowth, and the purpose is to prevent the prosthesis from loosening and sinking. However, through decades of domestic and foreign clinical experience, it has been found that as time goes on, the above-mentioned artificial femoral stem still loosens and sinks to varying degrees in the bone marrow cavity. [0003]...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multifunctional femoral stem prosthesis, which overcomes the defects of the prior art, solves the problem of loosening and subsidence of the femoral stem prosthesis after surgery, and solves the fracture around the femoral stem prosthesis after the secondary injury. Effective internal fixation of the proximal femur, easy loosening and prolapse of single cortical plate fixation

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