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International Orthopaedics

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Open Access 19-10-2023 | Acetabular Fracture | Original Paper

The optimal fluoroscopic views to rule out intra-articular screw penetration during acetabular fracture fixation

Authors: Aissam Elmhiregh, Ashraf T. Hantouly, Osama Alzoubi, Bivin George, Mohsen Ahmadi, Ghalib Ahmed

Published in: International Orthopaedics | Issue 1/2024

Abstract

Purpose

To determine the ideal view(s) and the minimum number of intraoperative fluoroscopic views required to rule out any intra-articular screw violation in acetabular fractures fixation.

Methods

This study was conducted using a series of fluoroscopic examinations of pelvic synthetic models with screws positioned in different planes around the acetabulum. Ten screws were placed in the synthetic pelvis models in different planes of the acetabulum. Seven views were taken for each screw. Radiographic images were evaluated by 14 orthopaedic surgeons who were asked to assess joint violation and the view(s) required for assessment.

Results

The observers’ accuracy rate in identifying joint violation was 82.1% for the anterior part of the anterior column and the superior part of the posterior column, 89.3% for the posterior part of the anterior column and the inferior part of the posterior column, and 92.9% for the quadrilateral plate. The sensitivity was 100% for the anterior and posterior parts of the anterior column and the inferior part of the posterior column, 87.5% for the superior part of the posterior column, and 85.7% for the quadrilateral plate. The specificity was 100% for the quadrilateral plate, 80% for the superior part of the posterior column and the posterior part of the anterior column, 78.6% for the inferior part of the posterior column, and 66.7% for the anterior part of the anterior column. There was a strong overall interobserver and intra-observer agreement with intraclass correlation coefficient (ICC) of 0.709 and 0.86, respectively.

Conclusions

This study confirms the hypothesis that in a concave surface/joint fixation, such as the acetabulum, the probability of joint violation is unlikely if there is no evidence of it within a single fluoroscopic view. In acetabulum fracture fixation with a screw violating the joint, the screw’s presence was evident within the joint space in all fluoroscopic views. However, the absence of joint violation in one fluoroscopic view was adequate to rule out joint penetration.

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Title: The optimal fluoroscopic views to rule out intra-articular screw penetration during acetabular fracture fixation
Authors: Aissam Elmhiregh
Ashraf T. Hantouly
Osama Alzoubi
Bivin George
Mohsen Ahmadi
Ghalib Ahmed
Publication date: 19-10-2023
Publisher: Springer Berlin Heidelberg
Keyword: Acetabular Fracture
Published in: International Orthopaedics / Issue 1/2024
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI: https://doi.org/10.1007/s00264-023-06002-6

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Springer Medicine

The optimal fluoroscopic views to rule out intra-articular screw penetration during acetabular fracture fixation

Abstract

Purpose

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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