Reduction support assembly for treating femoral fracture

Abstract

The invention belongs to the field of medical instruments, and discloses a reduction support assembly for treating femoral fracture. The reduction support assembly comprises: an intramedullary cavitysupport assembly, an internal femoral neck support assembly, and an external femoral neck support assembly, wherein the intramedullary cavity support assembly extends along a first direction and includes a proximal end portion of a first support assembly insertable into femoral tuberosity and a distal end portion of the first support assembly insertable into femoral shaft; the internal femoral neck support assembly extends along a second direction and includes a proximal end portion of a second support assembly insertable into the femoral neck and a distal end portion of the second support assembly insertable into the femoral tuberosity; and the external femoral neck support assembly extends along the second direction and includes a distal end portion of the external support assembly and aproximal end portion of the external support assembly; wherein the distal end portion of the second support assembly is inserted on the proximal end portion of the first support assembly, the distalend portion of the external support assembly is used to penetrate peripheral wall of the femoral shaft to be inserted into the intramedullary cavity support assembly, and the proximal end portion of the external support assembly is used to support a bottom outer wall of the femoral neck. The reduction support assembly can stably maintain a reduction state of a fracture site of femur so as to better promote healing of the fracture site.

Description

technical field [0001] The invention relates to the technical field of medical instruments. Background technique [0002] Proximal femoral fracture is a common osteoporotic fracture, which is more common in the elderly population. For unstable proximal femoral fractures, intramedullary nails are commonly used for reduction and support treatment. Among them, there is relative sliding between the main nail inserted into the femoral shaft and the internal cervical lag screw or helical blade inserted into the femoral neck due to mutual insertion, so it will form dynamic pressure on the fracture end, and this sliding pressure is considered effective. conducive to fracture healing. [0003] However, in recent years, the complications of intramedullary nailing have also been increasing. For example, in the process of forming dynamic pressure on the fracture end, the adverse stress produced by the eccentric movement of the intramedullary nail is obvious in the case of osteoporosi...

AI Technical Summary

Problems solved by technology

For example, in the process of forming dynamic pressure on the fracture end, the adverse stress produced by the eccentric movement of the intramedullary nail is obvious in the case of osteoporosis, often causing the cutting of the internal cervical lag screw or helical blade and the failure of fracture reduction. loss, especially in cases such as severe osteoporosis, leading to the need for a second revision surgery

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