3D Models of Fractured Pelvic Bones for Analysis of Symmetry and Deviation

Alberta Academic Review

View Publication Info
 
 
Field Value
 
Title 3D Models of Fractured Pelvic Bones for Analysis of Symmetry and Deviation
 
Creator Polege, Samantha
McClelland, Sarah
Ead, Maha
Li, David
Duke, Kajsa
Westover, Lindsey
 
Subject Pelvic bone
pelvic
fractures
3D model
deviation
symmetry
geomagic
CT scans
3D modelling
bone fracture
surgery
 
Description Pelvic fractures are a fairly common result of falls, automobile collisions, or other direct impact incidents. Most fractures are relatively mild and not life-threatening, but severe damage may have debilitating effects on the victim's health and quality of life. Pelvic breakage often requires surgery to alleviate, but procedures may be difficult given the complex anatomical structure of the area and the specific location of the fractures. This project aimed to make the planning stage easier for surgeons by analyzing left-right symmetry of the pelvis and using this property to create, in cases where one side is fractured and the other remains intact, 3D models of reconstructed pelvic fractures. Pelvic bone has been proven to be highly symmetrical. This method would provide surgeons with a clearer idea of how to best reassemble and otherwise correct fractures in the pelvis. First, various one-sided pelvic fractures from a batch of anonymized subjects obtained from the University of Alberta Hospital were digitized in medical imaging software. Data from six subjects in total was used in the collection of results. The digitized pelvises were then used to construct 3D models. The fractured pieces were aligned in best-fit with a mirrored intact side. Colour deviation maps, which differentiated between areas of high and low symmetry by measuring the degree of point deviance against a scale, were then generated. Deviance was generally more prevalent along the fracture lines. The predefined threshold considered a maximum of 2 mm of deviation as highly symmetrical. The average RMS value was found to be 1.65 mm and the average percentage of points within 2 mm of difference was 85.1%, indicating that the pelvic bones studied possessed a reasonably high degree of left-right symmetry. The results from this study suggest that this virtual reconstruction method is reliable for use in surgical planning for one-sided pelvic fractures.
 
Publisher Alberta Academic Review Ltd
 
Date 2019-09-18
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Special Conference Issue (Non-peer review)
 
Format application/pdf
 
Identifier https://albertaacademicreview.com/index.php/aar/article/view/66
10.29173/aar66
 
Source Alberta Academic Review; Vol 2 No 2 (2019): WISEST special edition; 61-62
2561-5335
2561-5327
 
Language eng
 
Relation https://albertaacademicreview.com/index.php/aar/article/view/66/35
 
Rights Copyright (c) 2019 Samantha Polege, Sarah McClelland, Maha Ead, David Li; Kajsa Duke; Lindsey Westover
https://creativecommons.org/licenses/by/4.0
 

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