Artificial femoral head nested in femoral neck

Abstract

The invention relates to artificial femoral head nested in femoral neck. The artificial femoral head is provided with a spherical articular surface and a femoral neck trepanning hole; the surface of the femoral neck trepanning hole is integrally molded with an inner three-dimensional net body; the surface of the inner three-dimensional net body is provided with a plurality of pores from outside to inside; the inside of the inner three-dimensional net body is provided with a transverse pore canal communicated with the partial or total pores; and the transverse pore canal of the inner three-dimensional net body is a single-layer pore canal or a multilayer pore canal. In operation, firstly, the necrotic part of the femoral head is removed; the femoral neck is remained as long as possible; then, a special surgical instrument is used for trimming the head end of the femoral neck into the shape inosculated with the femoral neck trepanning hole; and the artificial femoral head is sleeved at the head end of the femoral neck and pressed. After the artificial femoral head is mounted, when the articular surface needs an artificial hip joint renovation surgery after being worn for certain time, a product can be continuously used or an artificial femoral stem is implanted by a femoral neck resection according to the prior prevailing method; therefore, the artificial femoral head can increase more than one long-term renovation opportunity for patients.

Description

technical field [0001] The invention relates to an artificial femoral head embedded in the femoral neck. Background technique [0002] Femoral head necrosis is a common orthopedic disease. At present, the basic method of hip replacement surgery is to cut the necrotic femoral head and femoral neck from the greater trochanter to the lesser trochanter, and then implant artificial femoral stem and artificial hip. The disadvantage of this approach is that most of the femoral neck that is still in good health is abandoned, and at the same time, the opportunity to keep the proximal femur intact in future revision surgery is lost. Contents of the invention [0003] The object of the present invention is to provide an artificial femoral head nested in the femoral neck which can preserve the healthy femoral neck. [0004] To achieve the above object, the present invention takes the following design scheme: [0005] An artificial femoral head nested in the femoral neck is character...

AI Technical Summary

Problems solved by technology

[0002] Femoral head necrosis is a common orthopedic disease. At present, the basic method of hip replacement surgery is to cut the necrotic femoral head and femoral neck from the greater trochanter to the lesser trochanter, and then implant artificial femoral stem and artificial hip. acetabulum and femoral head, the drawback of this approach is to give up a large part of the femoral neck that is still in good health, and at the same time lose the opportunity to keep the proximal femur intact in future revision surgery

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