Reference : Experimental and numerical assessment of two reconstructive techniques for the fragil...

	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Mechanical engineering
	To cite this reference:	http://hdl.handle.net/10993/55768

Title :	Experimental and numerical assessment of two reconstructive techniques for the fragility fractures of the pelvis type Ia
Language :	English
Author, co-author :	Soliman, Ahmed Abdelsalam Mohamed [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
	Kedziora, Slawomir [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
	Kelm, Jens [Chirurgisch Orthopädisches Zentrum Illingen, Illingen, Deutschland]
	Maas, Stefan [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
	Gerich, Torsten [Centre Hospitalier de Luxembourg, Luxembourg, Luxembourg]
Publication date :	Jul-2024
Journal title :	Medical Engineering and Physics
Publisher :	Elsevier
Volume :	119
Peer reviewed :	Yes
Audience :	International
ISSN :	1350-4533
e-ISSN :	1873-4030
City :	Oxford
Country :	United Kingdom
Keywords :	[en] Pelvic ring ; Fragility fractures ; Pelvic stabilization
Abstract :	[en] Anterior pelvic ring fractures are common in geriatric patients. The Supraacetabular External Fixator (SEF) is a relatively simple and effective surgical procedure. On the other hand, there is the option of a Subcutaneous Iliopubic Plate (SIP) osteosynthesis. Only limited comparative biomechanical data of these two devices are available. Therefore, this biomechanical study’s objective was to compare the stabilizing effect of the SEF versus the SIP in a model of Fragility Fractures of the Pelvis (FFP) type Ia. A test stand for pelvic biomechanics testing that emulates the gait loading cycle with physiological relevance was used. The osteotomy on the right pelvic ring was stabilized either with the SEF or the SIP. Strain gauges were used to measure strain in the pelvic ring. The osteotomy’s spatial interfragmentary displacement (SID) was monitored using a 3D digital image correlation system. The SEF stabilization reduced the SID by approximately 10%, whereas the locking SIP could reduce displacement by about 62%. Additionally, the SIP reduced the stress/strain levels by 67% in the posterior pelvic ring. We could demonstrate that the SIP is superior to SEF in treating FFP type Ia as it significantly reduced the osteotomy’s SID and the strain in the posterior pelvic ring.
Funders :	This research is funded by the Department of Engineering of the University of Luxembourg.
Target :	Researchers ; Professionals ; Students ; General public
Permalink :	http://hdl.handle.net/10993/55768
DOI :	10.1016/j.medengphy.2023.104026

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