Plum blossom guide steel plate for femoral neck fracture

Abstract

The invention discloses a plum blossom guide steel plate for femoral neck fracture. The steel plate comprises a steel plate body, the steel plate body comprises an upper end part, a middle main body, a first side end part, a second side end part, a first lower end part and a second lower end part, and the upper end part, the middle main body, the first side end part, the second side end part, the first lower end part and the second lower end part are of an integrated structure; the upper end is arranged at the upper end of the middle body, the first lower end is arranged at the lower end of the middle body, the second lower end is arranged at the lower end of the first lower end, the first side end is arranged on one side of the middle body, and the second side end is arranged on the other side of the middle body. The upper end part, the middle main body, the first side end part, the second side end part, the first lower end part and the second lower end part are all clung to the femur; a first nail placing hole is formed in the end part of the first side; and a second nail placing hole is formed in the end part of the second side. Through the application of the device, the parallel hollow nails can be accurately nailed, the most stable fixing effect is achieved, repeated operation is avoided, the operation and fluoroscopy duration is shortened, and iatrogenic fractures are avoided.

Description

technical field [0001] The invention relates to the technical field of femoral steel plates, in particular to a quincunx guiding steel plate for femoral neck fractures. Background technique [0002] With the frequent occurrence of traffic accidents, femoral neck fractures in young and middle-aged people tend to increase year by year. Unlike the elderly, young patients are often treated with hip-preserving surgery, and are generally fixed with several hollow nails arranged in parallel. The biomechanical environment of the femoral neck is relatively complex. The femoral head bears the pressure of 237.7% of the body weight, and the blood vessels around the femoral neck are easily interrupted by fracture displacement. Therefore, the clinical prognosis of femoral neck fracture is not satisfactory, the femoral head necrosis rate is 14.3%, the nonunion rate is 9.3%, and the reoperation rate is 13.0%. If this type of fracture is not properly treated, it can leave lifelong disabili...

AI Technical Summary

Problems solved by technology

[0004] However, in actual operation, orthopedic surgeons operate with bare hands, and it is difficult to achieve the best fixed position

Secondly, due to the narrow space of the femoral neck, the insertion of the fourth screw is likely to conflict with the other three screws, resulting in extremely difficult insertion

Due to the inability to operate under direct vision, it is often necessary to insert the guide pin repeatedly, which not only causes bone loss and reduces stability, but also causes damage to the intraosseous vascular network and increases the risk of femoral head necrosis

Due to the need for repeated operations under fluoroscopy, this further increases the operation time and X-ray exposure time, causing potential X-ray damage to doctors and patients

In addition, for patients with osteoporosis, hollow nails are difficult to obtain sufficient pressure, and even iatrogenic fractures of the lateral wall and subtrochanter may occur

At present, there is still a lack of implantable guide plate, which can realize the precise positioning of screws, increase the pressure of screws, and prevent iatrogenic fractures.

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