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Fixation device and method for acetabular anterior and posterior column fractures

A fixation device, anterior and posterior column technology, applied in the direction of fixator, internal bone synthesis, outer plate, etc., can solve the problems of limited blocking force in the acetabular quadrilateral area, many potential complications, and difficulty in bending and shaping. Less potential complications, less traumatic arthritis of the hip, and wider blocking effect

Inactive Publication Date: 2017-03-08
郭晓东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Fixation device and method for acetabular anterior and posterior column fractures
  • Fixation device and method for acetabular anterior and posterior column fractures
  • Fixation device and method for acetabular anterior and posterior column fractures

Examples

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Embodiment 1

[0041] Such as figure 2 As shown, the fixation device for anterior and posterior column fractures of the acetabulum according to the present invention includes: an arcuate border plate 1 and a pubic plate 2, both of which are plate-shaped structures with concavities and convexities of substantially the same thickness, made of medical stainless steel or titanium alloy become.

[0042] The arcuate edge steel plate 1 is an arc-shaped steel plate of equal width, which is bent to match the inner physiological curvature of the arcuate edge 13 . Both ends of the arcuate edge steel plate 1: one end is provided with the first screw hole D1 close to the superior pubic ramus 10 with the arcuate edge 13;

[0043] The arcuate edge steel plate 1 is provided with A hole, B hole, C hole and first screw hole D1 from outside to inside. The holes A, B and C are combined screw holes, and the first screw hole D1 is a connecting screw hole.

[0044] The side arm 3 of the posterior column is ben...

Embodiment 2

[0053] Such as image 3 As shown, the fixation device for anterior and posterior acetabular column fractures of the present invention is installed on the hip bone. The fixation devices for anterior and posterior column fractures of the acetabulum include: arcuate border plate 1 and pubic plate 2. Among them, the shapes of the arcuate border plate 1 and the pubic plate 2 are matched with the quadrangular area 9 of the acetabulum, the anterior column 7, and the posterior column 6, especially the physiological radians of the superior pubic ramus 10 and the medial surface of the arcuate border 13, and there is no need to carry out Pre-curved, easy to operate.

[0054] Referring to the physiological curvature between the inner side of the arcuate border 13 and the iliac fossa 5 , the arcuate border plate 1 is positioned on the inner side of the arcuate border 13 . Referring to the physiological radian of the inner side of the superior pubic ramus 10 , the pubic plate 2 is positio...

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Abstract

The invention discloses a fixation device for acetabular anterior and posterior column fractures and a use method thereof. The device consists of an arcuate border plate, a pubic plate, and a posterior column lateral arm. The overall shape matches the anatomy of the medial anterior and posterior columns of the acetabulum. The arcuate border plate matches the structure of the arcuate border and extends the lateral arm of the posterior column toward the iliac fossa. The pubic plate cooperates with the anatomical structure of the medial side of the superior pubic ramus, and a pubic side arm extends from the proximal pubic tubercle to the upper surface of the superior pubic ramus. There are multiple screw holes on the arcuate edge plate and the pubic plate, and screws are implanted to fix them at the anatomical position of the acetabulum. The invention can stably fix the fractures of the anterior and posterior columns of the acetabulum and the upper part of the quadrangular area, and improve the quality of fracture reduction and internal fixation.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/80
CPCA61B17/80A61B17/8066
Inventor 郭晓东
Owner 郭晓东
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