Anatomical femoral neck fracture extramedullary fixing steel plate and fixing system

Abstract

The embodiment of the invention relates to an anatomical femoral neck fracture extramedullary fixing steel plate and a fixing system. The fixing system comprises a fixing steel plate, femoral neck fixing nails, femoral neck lag screws and locking screws. The anatomical femoral neck fracture extramedullary fixing steel plate comprises a first fixing part and a second fixing part which are connected, wherein the first fixing part comprises a first positioning hole, a first oblique insertion screw hole, a second oblique insertion screw hole, a third oblique insertion screw hole, a combined tension screw hole and a second positioning hole, and the first fixing part, the femoral neck fixing nails and the femoral neck lag screws are used in cooperation; the second fixing part comprises a fixingscrew hole and is used in cooperation with the locking screws. The near end of the fixing steel plate can ensure that at least three screws are placed into the femoral neck, the designed lag screw holes are used for pressurizing the fracture end, the designed positioning screw holes are used for avoiding screw retreating and plate retreating, two kirschner wire holes are used for rapid positioningand temporary fixing, surgical operation is faster, more reliable and more reasonable, and fracture healing is promoted to the maximum extent.

Description

technical field [0001] The invention relates to the field of orthopedic medical devices, in particular to an anatomical femoral neck fracture extramedullary fixation plate and a fixation system. Background technique [0002] Proximal femoral fractures include femoral neck fractures, intertrochanteric fractures, and subtrochanteric fractures, accounting for about 7.3% of adult systemic fractures, and up to 23.8% of elderly fractures. With the aging of the global population, the incidence of femoral neck fractures is increasing year by year. After the femoral neck fracture occurs, the intramedullary blood perfusion of the femoral head is destroyed, and the blood supply of the joint capsule is also damaged with the increase of intra-articular pressure. Therefore, postoperative nonunion and necrosis of the femoral head remain happens sometimes. The increasing treatment demands of femoral neck fractures and the high quality of life of patients have become a challenge for orthop...

AI Technical Summary

Problems solved by technology

The disadvantage of the locking plate is that, firstly, its shape design does not conform to the anatomical and morphological characteristics of the proximal femoral border of the Chinese population, which makes the matching between the plate and the lateral femoral border poor, and a large gap is likely to occur, leading to complications such as congestion and infection. Moreover, due to the difficulty of placement, the operation time is increased; secondly, there is no well-designed Kirschner wire opening for accurate positioning, so it is difficult to quickly and accurately determine the position of the plate and the boundary of screw insertion, and the single opening makes the plate stable during fluoroscopy. Third, the location and direction of the screw holes are unreasonable, and at least three screws cannot be inserted into the femoral neck; fourth, the screws are all fixed in parallel, so it is difficult to ensure that the screws will not be withdrawn or withdrawn together with the plate; fifth, the model is single , lack of plates of different widths and lengths, it is difficult to achieve a better match with the proximal lateral wall of the femur in men and women

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