Acetabular bone deformity filler

Abstract

The invention relates to an acetabular bone deformity filler which comprises a bone deformity filler, a screw hole, reinforcing ribs and a reinforcing plate and is made into a three-dimensional porous dictyosome structure by adopting medical metals or biological ceramics. The surface and the interior of the three-dimensional porous dictyosome are provided with a plurality of mutually communicated pore canals, the acetabular bone deformity filler is provided with a screw hole in a suitable position and also provided with a bone-planting hole for containing bone-planting particles or bone meal in a suitable position, all or partial surface of the acetabular bone deformity filler is provided with a hydroxyapatite coating, and the acetabular bone deformity filler can be effectively prevented from loosening for a long time when external osseous tissue permeates and grows in the three-dimensional porous dictyosome and melts and grows with the bone-planting particles or the bone meal filled in the bone-planting hole into a whole after operational planting.

Description

technical field [0001] The invention relates to an implant for hip joint replacement surgery, in particular to an acetabular bone defect filler for bone defect filling. Background technique [0002] With the continuous advancement of medical technology, artificial hip replacement surgery has gradually become a relatively common surgical operation. The usual practice is to install a plastic device made of ultra-high molecular weight polyethylene or metal and ceramics on the side of the acetabulum of the hip joint. The acetabular cup prosthesis is used to replace the function of the damaged acetabulum, but it is often encountered during the operation that the acetabular side bone defect caused by various reasons makes the acetabular cup prosthesis unable to be stably fixed in the patient's acetabular position. On the bone bed, autologous bone grafting or allogeneic bone grafting is generally required at this time, which will cause problems such as increasing patient pain, prol...

AI Technical Summary

Problems solved by technology

[0002] With the continuous advancement of medical technology, artificial hip replacement surgery has gradually become a relatively common surgical operation. The usual practice is to install a plastic device made of ultra-high molecular weight polyethylene or metal and ceramics on the side of the acetabulum of the hip joint. The acetabular cup prosthesis is used to replace the function of the damaged acetabulum, but it is often encountered during the operation that the acetabular side bone defect caused by various reasons makes the acetabular cup prosthesis unable to be stably fixed in the patient's acetabular position. On the bone bed, autologous bone grafting or allogeneic bone grafting is generally required at this time, which will cause problems such as increasing patient pain, prolonging operation time, and increasing costs.

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