Restoring device of femoral prosthesis in hip arthroplasty

Abstract

The invention provides a restoring device of femoral prosthesis in hip arthroplasty. The restoring device comprises a hook pressure part, a prying part and a fixing part, a change-over part is arranged between the hook pressure part and the prying part, and the hook pressure part, the prying part, the fixing part and the change-over part are structurally assembled and connected with a lateral crossbeam of a surgical bed, so that the femoral prosthesis can be restored into the acetabular conveniently in the hip arthroplasty. The restoring device is simple in structure, easy to restore and convenient in surgical operation, and thereby saving the physical strength of operators.

Description

technical field [0001] The invention belongs to the technical field of prosthesis reduction in artificial hip joint replacement, in particular to a femoral prosthesis reduction device in artificial hip joint replacement. Background technique [0002] Total hip arthroplasty is currently the best way to treat end-stage diseases of the hip joint such as avascular necrosis of the femoral head, rheumatoid arthritis, osteoarthritis and other diseases. It is often difficult for the operator to reduce the femoral prosthesis into the artificial acetabulum or into the anatomical acetabulum more conveniently and effectively. The reason can be attributed to the fact that the soft tissue around the hip joint has been in abnormal mechanical environment for a long time, or formed scars after repeated operations, a large number of bone hyperplasia or soft tissue contracture, poor ductility, scar hyperplasia and many other reasons. Prosthesis reduction is difficult, especially in patients w...

AI Technical Summary

Problems solved by technology

[0002] Artificial total hip replacement is currently the best way to treat end-stage diseases of the hip joint, such as avascular necrosis of the femoral head, rheumatoid arthritis, osteoarthritis, etc. It is more convenient and effective to reset the femoral prosthesis into the artificial acetabulum or the anatomical acetabulum, and the surgeon often faces difficulties

The reason is that the soft tissue around the hip joint has been in an abnormal mechanical environment for a long time, or scars have been formed by multiple operations, a large number of bone hyperplasia or soft tissue contracture, poor ductility, scar hyperplasia and many other reasons, resulting in femoral fractures in artificial total hip replacement. Prosthesis reduction is difficult, especially in patients with moderate to severe congenital dysplasia of the hip, how to reduce the femoral prosthesis is a big problem

In order to reset the femoral prosthesis during the operation, while causing a lot of physical exertion for the operator, the soft tissue has to be loosened, stripped, and cut more extensively, which affects the postoperative rehabilitation process and increases the risk of complications

At present, there is no instrument device that can assist the operator to perform labor-saving, convenient and effective reduction of the femoral prosthesis in total hip arthroplasty.

Images