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European Journal of Orthopaedic Surgery & Traumatology

20-04-2024 | Acetabular Fracture | Technical Note

Novel implant design for comminuted posterior wall acetabular fractures

Authors: Carlos Domínguez-Barrios, Marco Antonio Altamirano-Cruz, Jorge Enrique Velarde-Bouche, Vincenzo Giordano

Published in: European Journal of Orthopaedic Surgery & Traumatology

Abstract

Background

In recent years, the medical community has witnessed a notable increase in high-energy traumatic injuries, leading to a surge in complex fracture patterns that challenge existing treatment methodologies. Among these, the posterior approach to acetabular fractures stands out for offering direct visualization of the retro-acetabular surface, with current fixation methods relying on 3.5 mm low-profile reconstruction plates and various other implants. Despite the effectiveness of these methods, there is a burgeoning demand for a singular, adaptable implant that not only streamlines the surgical process but also optimizes patient outcomes.

Methods

In an innovative approach to address this need, three-dimensional (3D) models of the posterior acetabular wall were meticulously crafted using AutoCAD® software. The chosen material for the implant was 316L surgical steel for its durability and strength. The design of the implant featured a low-profile mesh structure, which was instrumental in facilitating osteosynthesis. This design allowed for the placement of screws of varying lengths in multiple directions, ensuring the initial reconstruction of the joint in an anatomical position without hindering the placement of the definitive implant. The primary objective was to secure the fixation and stabilization of the fracture by specifically targeting the smaller bone fragments. A comparative analysis was then conducted between this novel plate and a conventional 316L surgical steel, seven-hole, 3.5 mm reconstruction plate through finite element analysis.

Results

The comparative analysis unveiled that both plates demonstrated comparable deformation capacities, with no significant differences in load-bearing capabilities observed. This finding suggests that the innovative plate can match the performance of traditional plates used in such surgeries.

Conclusions

The finite element analysis revealed that the newly developed anatomical plate for posterior wall acetabular fractures meets the necessary physical and mechanical criteria for permanent implementation in patients with these fractures. This breakthrough represents a promising advancement that could simplify surgical procedures and potentially elevate patient outcomes.

Level of Evidence II

This study is classified as a Level II, diagnostic study.

Available only for authorised users

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Title: Novel implant design for comminuted posterior wall acetabular fractures
Authors: Carlos Domínguez-Barrios
Marco Antonio Altamirano-Cruz
Jorge Enrique Velarde-Bouche
Vincenzo Giordano
Publication date: 20-04-2024
Publisher: Springer Paris
Keyword: Acetabular Fracture
Published in: European Journal of Orthopaedic Surgery & Traumatology
Print ISSN: 1633-8065
Electronic ISSN: 1432-1068
DOI: https://doi.org/10.1007/s00590-024-03951-5

2024 ASCO Annual Meeting

Springer Medicine

Novel implant design for comminuted posterior wall acetabular fractures

Abstract

Background

Methods

Results

Conclusions

Level of Evidence II

2024 ASCO Annual Meeting

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

Level of Evidence II

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