Fixing device for fractures of anterior column, posterior column and square area of acetabulum and method

Abstract

The invention discloses a fixing device for fractures of an anterior column, a posterior column and a square area of an acetabulum and a use method thereof. The fixing device comprises a trapezoid main board and a pubic auxiliary board; the integral shape of the trapezoid main board and the pubic auxiliary board is matched with anatomical structures of the insides of the anterior column and the posterior column of the acetabulum and the square area of the acetabulum; an arcus marginalis steel plate positioned at an ilium arcus marginalis is arranged at the upper part of the trapezoid main board; a posterior column steel plate is arranged at one side edge of the trapezoid main board; after being crossed, the posterior column steel plate and the arcus marginalis steel plate are bent and extend towards the fossa iliaca to form a posterior column side wall; an ischium steel plate is arranged at the lower part of the trapezoid main board; a square area baffle is arranged among the arcus marginalis steel plate, the posterior column steel plate and the ischium steel plate; the pubic auxiliary board is matched with an anatomical structure of the inside of the superior pubic ramus, is bent near a pubic tubercle and extends towards the upper surface of the superior pubic ramus to form a pubic side wall; the trapezoid main board and the pubic auxiliary board are provided with a plurality of screw holes. By using the fixing device, the acetabulum fractures can be stably reduced and fixed and quality of fracture reduction and internal fixation is improved.

Description

technical field [0001] The invention relates to the field of orthopedic medical devices, more specifically, it relates to a fixation device for fractures of the anterior and posterior columns of the acetabulum, especially fractures of the quadrangular region. The invention also relates to the use method of the fixing device, which solves the technical problem of how to fix fractures of the anterior and posterior columns of the acetabulum, especially the quadrangular region fractures. Background technique [0002] Acetabular comminuted fractures have always been a difficult problem in trauma orthopedic treatment. The complex blood vessels and nerve structures around the pelvis, the difficulty of exposure, and the small number of screw placement areas all bring difficulties to the anatomical reduction of periacetabular fractures. For complex acetabular fractures, due to severe violence, comminuted fractures of the anterior column or posterior column are often combined with co...

AI Technical Summary

Problems solved by technology

[0004] There are many problems in the current commonly used surgical methods: difficult fracture reduction, difficulty in shaping and placing steel plates after reduction, unreliable fracture fixation, high possibility of soft tissue damage such as blood vessels and nerves, long operation time, large amount of bleeding, and many postoperative complications Wait

[0005] Patent CN201831946U discloses a pelvic acetabular quadrangular anatomical steel plate, including a long plastic steel plate and an integrated baffle, which can prevent fractures of the acetabular quadrangular region, but there is displacement of the quadrangular region fracture There are many problems such as the mechanical mismatch of the direction, the limited blocking force, and the inability to fix the front and rear columns at the same time. It is urgent to develop better internal fixation devices.

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