Femoral prosthesis and using method

Abstract

The invention discloses a femoral prosthesis and a using method, wherein the femoral prosthesis is used for repairing femoral of an infected joint; and the method comprises the following steps: implementing computed tomography reconstruction and three-dimensional printing on femoral of a patient to make a femoral prosthesis model, so as to simulate the status of the femoral of the patient on the femoral prosthesis model; conducting excision to a part in the femoral prosthesis model, which is equal to the infected joint, according to an acquired bone part three-dimensional image and born boundary of the infected joint of the patient; making a filling part for filling the femoral infected joint of the patient according to the femoral prosthesis model that the infected joint is excised, wherein the filling part is matched with the femoral of the patient; and immobilizing the filling part on the femoral of the patient, wherein the filling part can be made from a titanium alloy material or a polyethylene material. The femoral prosthesis and the using method disclosed by the invention are good in abrasion resistance, biocompatibility and stability; and a femoral prosthesis highly consistent with a patient can be customized.

Description

technical field [0001] The invention relates to a femoral head prosthesis, in particular to a femoral head prosthesis for repairing necrotic and collapsed femoral heads. Background technique [0002] The femoral head prosthesis is a surgical implant of the femoral head of the human hip joint, which is used to repair the necrotic and collapsed femoral head and is used as an excessive joint. [0003] The above-mentioned hip joint is progressive, but in actual use, it is found that there are still some shortcomings in its structure, which lead to limitations of the femoral head prosthesis. The shortcomings include: [0004] 1) The patient population is small, and the existing hip joint prosthesis is a single structure and serialized product. The proportion of the femoral head shape is fixed and cannot be adjusted, but in fact the femoral head of the patient has the characteristics of diversity, so One type of hip joint prosthesis can only satisfy patients with one type of femo...

AI Technical Summary

Problems solved by technology

[0004] 1) The patient population is small, and the existing hip joint prosthesis is a single structure and serialized product. The proportion of the femoral head shape is fixed and cannot be adjusted, but in fact the femoral head of the patient has the characteristics of diversity, so One type of hip joint prosthesis can only satisfy patients with one type of femoral head shape, and its application range will be greatly limited

[0005] 2) The trauma area is large, destroying the existing good bone tissue;

[0006] 3) The femoral head according to the personalized setting needs to be accurately installed and fixed, and the osteotomy position needs to be matched during installation, otherwise excessive wear and wear particles will occur. For most cases of femoral head necrosis and collapse, the personalized femoral head cannot be used

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