Acetabular Fracture Fixation Device for Quadrilateral Plate Stability
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Solution Overview
Problem
Current surgical methods for fixing acetabular fractures involving the quadrilateral plate are challenging due to difficulties in fracture reduction, unstable fixation, risk of damaging blood vessels and nerves, long operative times, and high postoperative complications, especially in comminuted and displaced fractures, with existing devices failing to simultaneously fix both anterior and posterior columns effectively.
Innovation Solution
A fixation device comprising an iliopectineal plate and a pubic plate, designed to match anatomical structures, with screw holes and Kirschner wire temporary fixing holes, allowing for precise alignment and secure attachment to the acetabulum's quadrilateral plate and posterior column, enabling simultaneous fixation of both anterior and posterior columns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current surgical methods are used to fix acetabular fractures involving the quadrilateral plate, then fracture fixation can be achieved, but the fixation is unstable and surgical complications are high
Solution Approach 1:
The fixation device is divided into multiple functional components: an iliopectineal plate for anterior column fixation, a pubic plate for superior pubic ramus fixation, and a posterior column arm for posterior column fixation. This segmentation allows each component to address specific fracture patterns and provide stable fixation without interfering with surrounding neurovascular structures, thereby reducing surgical complications while maintaining fixation stability.
2Manufacturing precision
If current surgical methods are used to fix comminuted and displaced fractures, then fracture reduction can be attempted, but the reduction is unsatisfactory and malunion occurs
Solution Approach 1:
The device incorporates pre-designed screw holes and Kirschner wire temporary fixing holes that enable preliminary reduction and temporary fixation before final plate application. This preliminary action allows surgeons to achieve accurate fracture reduction and maintain it during subsequent fixation steps, preventing malunion in comminuted and displaced fractures.
3Productivity
If current surgical methods are used for acetabular fracture fixation, then the procedure can be completed, but operative time is long
Solution Approach 1:
The device merges multiple fixation functions into a single integrated construct that can be applied through one surgical approach. The iliopectineal plate, pubic plate, and posterior column arm work together as a unified system, eliminating the need for separate fixation procedures and significantly reducing operative time while maintaining comprehensive fracture stabilization.
4Adaptability or versatility
If current surgical methods are used to fix the quadrilateral plate, then some fixation can be achieved, but the fixation is limited and cannot simultaneously fix anterior and posterior columns
Solution Approach 1:
The fixation device is designed with multi-functionality to address various fracture patterns simultaneously. The iliopectineal plate component provides anterior column fixation, the pubic plate addresses superior pubic ramus fractures, and the posterior column arm stabilizes posterior column fractures. This universal design allows a single device to fix anterior and posterior columns along with the quadrilateral plate, enhancing adaptability without excessive complexity.
Data Source
AI summary
Disclosed are a device for fixing acetabular fractures involving the anterior/posterior column and acetabulum quadrilateral plate and a usage method thereof. The device includes an iliopectineal plate and an trapezoidal plate or a pubic plate. The iliopectineal plate and the pubic plate are integrally bent to match with a medial anatomic structure of an iliopectineal line and a superior pubic ramus. The shape of trapezoidal plate matches with the acetabular quadrilateral plate, the anterior column and the posterior column to fix the posterior column, an ischium and the acetabulum quadrilateral plate from inside to outside. The device is at the medial surface of the iliopectineal line, which fixes the fragments of the acetabulum quadrilateral plate in an opposite direction and fixes the acetabular fracture stably for improving the quality of reduction and fixation.