Fixing device and method for fractures of anterior and posterior columns of acetabulum

Abstract

The invention discloses a fixing device for fractures of anterior and posterior columns of acetabulum and a use method for the fixing device. The fixing device comprises an arcus marginalis steel plate, a pubis steel plate and a posterior column side wall, wherein the integral shape is matched with anatomical structures of the inner sides of the anterior and posterior columns of acetabulum; the arcus marginalis steel plate is matched with the structure of arcus marginalis, and extends toward fossa iliaca to form the posterior column side wall; the pubis steel plate is matched with the anatomical structure of the inner side of superior pubic ramus; a pubis side wall extends toward the upper surface of the superior pubic ramus at a position near pubic tubercle; a plurality of screw holes are formed in the arcus marginalis steel plate and the pubis steel plate; the arcus marginalis steel plate and the pubis steel plate are fixed at the acetabular dissection positions by planting screws. According to the fixing device and the method disclosed by the invention, the fractures of the upper parts of the anterior and posterior columns and a quadrilateral area of acetabulum can be stably fixed, so the quality of fracture reduction and internal fixation is improved.

Description

technical field [0001] The invention relates to the field of orthopedic medical instruments, more specifically, it relates to a fixation device for fractures of the anterior and posterior columns of the acetabulum. The invention also relates to the use method of the fixing device, which solves the technical problem of how to fix the fracture of the anterior and posterior columns of the acetabulum. Background technique [0002] Acetabular comminuted fractures have always been a difficult problem in trauma orthopedic treatment. The acetabulum is supported by an anterior column and a posterior column in an inverted "Y" shape. The two columns hug the acetabulum like a cradle and meet on the medial side to form the medial wall of the acetabulum, the quadrilateral area of ​​the acetabulum, also known as the narrow third Column, the role is to prevent the medial displacement of the hip joint. The purpose of acetabular surgery or non-surgical treatment is to restore the concentric...

AI Technical Summary

Problems solved by technology

However, there is a mechanical mismatch between the placement position of the steel plate and the displacement direction of the anterior and posterior column fractures, limited resistance to the quadrangular area of ​​the acetabulum, and difficulty in bending and shaping the plate when placed on the upper surface of the arcuate edge, resulting in large surgical trauma and postoperative potential There are many problems such as many complications, and it is urgent to develop better internal fixation devices

Images