Femoral prosthesis for retaining femoral head

Abstract

The invention provides a femoral prosthesis for retaining a femoral head, and belongs to the technical field of medical instruments. The femoral prosthesis comprises an extramedullary entity, the upper end face of the extramedullary entity makes contact with the osteotomy face of the proximal femur, an intramedullary entity is arranged at the upper end of the extramedullary entity, and the intramedullary entity is inserted in a medullary cavity of the proximal femur and matched with the shape of the medullary cavity of the proximal femur. A thighbone outer side plate is arranged on the outer side of the extramedullary entity, and the thighbone outer side plate is fixed to the outer side of the thighbone near end through a lock pin; the lower end of the extramedullary entity is connected with a broach, and the broach is fixed to the inner side of the femoral shaft cortex. According to the scheme, for proximal femur bone defects, the femur prosthesis can retain the femur head and hip joints of a patient and recover the length and function of the femur, so that various complications are reduced, meanwhile, a long-term revision opportunity is added for the patient, and a good bone foundation is provided for revision operations of the patient.

Description

[0001] This application is a divisional application with application number 202010880527.3, application date 20200827, and invention name "A Femoral Prosthesis for Retaining the Femoral Head". technical field [0002] The invention relates to the technical field of medical instruments, in particular to a femoral prosthesis for retaining a femoral head. Background technique [0003] The femur is the most important bone in the human body, and the femoral head is even more important. People's upright walking, activities, and labor all rely on the support of the femoral head. In the face of proximal femoral bone defects caused by tumors, comminuted fractures, etc. (excluding femoral head and femoral neck, which are also facing damage), total hip replacement is mostly used at present, and the basic method of hip replacement surgery is Cut off the femoral head, femoral neck and necrotic diaphysis together, and then implant the artificial femoral stem, artificial acetabulum and fem...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a femoral prosthesis for retaining the femoral head to solve the problem that the existing total hip replacement gives up part of the femoral head and femoral neck in a healthy state, which will cause patients to be unable to undergo revision surgery in the future. Problems keeping the proximal femur intact

Images