Arc-shaped steel plate for fixation of fracture of femur

Abstract

The invention relates to an arc-shaped steel plate for fixation of intertrochanteric fracture and subtrochanteric fracture, belonging to the technical field of implants in human bodies. The arc-shaped steel plate for fixation of fracture is composed of a main plate and an arc-shaped plate, wherein the arc-shaped plate is manufactured at one side of the main plate, the main plate and the arc-shaped plate are integrated through arc transition, and the main plate and the arc-shaped plate are laminated and fixed with the femur through screws. According to the invention, by additionally arranging the arc-shaped plate at one side of the main plate, a screw implanting area at the front outer side or front side of the femur can be effectively utilized, six or more than six lock holes fixed to the femoral head through the femoral neck can be selected, neck built-in screws are dispersed, and the arc-shaped plate shares the stress of the main plate, so that the fracture reduction and fixation effect and plate support degree of the inner rear side of intertrochanteric fracture are improved; and the arc-shaped steel plate for fixation is wide in range of application, can be used for all stable and unstable intertrochanteric fracture and subtrochanteric fracture, splintered fracture of the medial femoral calcar and lesser trochanter as well as fracture of the femoral neck, is capable of effectively reducing the risks of coxa vara, coxa rotation, screw breaking and plate breaking, and is simple and convenient to install as well as safe and stable in use.

Description

technical field [0001] The invention relates to a femoral arc-shaped bone plate for femoral intertrochanteric and subtrochanteric fractures, which belongs to the technical field of implants in human body. Background technique [0002] Intertrochanteric and subtrochanteric fractures are common clinical orthopedic diseases, often resulting in disability or fatal complications due to improper treatment resulting in coxa varus and hip rotation deformity. At present, surgical internal fixation is mostly used for the treatment of intertrochanteric fractures at home and abroad. The internal fixation materials include intramedullary fixation system and extramedullary fixation nail-plate system. Among them, the intramedullary fixation system requires high surgical operation accuracy and will damage and It hinders the blood supply in the femoral medullary cavity, leading to a high incidence of complications such as fat embolism, high risk, and difficult removal in the later stage, whi...

AI Technical Summary

Problems solved by technology

To solve the problem that the existing technology cannot be half-wrapped and fitted to the femur for support and fixation, the nail cannot be placed through the plate from the anterior outer edge of the femur or from the front of the femur, the plate and the bone are poorly attached, the compressive stress on the implant is too concentrated, and the stability is poor , the built-in cervical screws are not too scattered, the anti-rotation ability is weak, and there are often problems such as screw loosening, plate distortion and fracture, screw cutting of the femoral head, coxa varus, and hip rotation deformity.

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