Fixation devices for acetabular anterior and posterior column fractures

Abstract

The invention discloses a fixation device and method for acetabular anterior and posterior column fractures. The fixing device comprises an arcuate edge steel plate and a trapezoidal steel plate, both of which are combined into one; the arcuate edge steel plate is strip-shaped and horizontally arranged, and the back is curved to match the anatomical structure of the inner side of the arcuate edge; the trapezoidal edge steel plate is There are at least three groups of fixed arms extending between the middle of the top and the bottom middle of the arcuate edge steel plate; the trapezoidal steel plate is arranged transversely at the lower part of the arcuate edge steel plate, and the whole is curved to match the upper ischia and the quadrangular area of ​​the acetabulum Medial anatomy of the upper half. The invention can stably reduce and fix the acetabular fracture, 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 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 comminuted fractures or severe displacement of the quadrilateral area of ​​the acetabulum....

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

Patent CN201831946U discloses an anatomical steel plate in the square area of ​​the acetabular region of the pelvis, including a long plastic steel plate and an integrated baffle, which can prevent fractures of the anterior column of the acetabulum to a certain extent, but there is a displacement of the square area of ​​the acetabulum. Mechanics mismatch in direction, limited blocking force, cannot be fixed at the same time

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