Dear Spiral user, We’re pleased to introduce Helix, https://helix.imperial.ac.uk/ Imperial’s new repository for research datasets. Please use Helix for all future dataset deposits. There is no change to Spiral - continue depositing as usual. For queries, contact the Research Data Management team at rdm-enquiries@imperial.ac.uk. Kind regards, the Spiral Team. The Spiral team
Investigation of a trochanteric fi-nail intramedullary implant fixation using the finite element method
OA Location
Author(s)
Kaselouris, EN
Venetsanos, Demetrios
Provatidis, CG
Xypnitos, FN
Nikolaou, V
Type
Journal Article
Abstract
The efficiency of an intramedullary nail fixation device, used in cases of trochanteric and subtrochanteric fractures, is defined by several parameters, two of which are the location and the number of distal screws that are used. Towards this direction, the present paper investigated the effect of the two aforementioned characteristics implementing the finite element method (FEM). The left proximal femur of a 93-year old man was scanned and two series of full 3D models, introducing an intramedullary Fi-nail, were developed. The first series, consisting of five models, concerned the use of a single distal screw inserted in five different distal locations. The second series, consisting of four models, concerned the use of four different pairs of distal screws. Each model was analyzed with the FEM twice, first considering that the femur is fractured and then considering that the fracture is healed. The main conclusion derived from this investigation was that, for Fi-nails with a single distal screw, stresses around the nail hole were reduced with proximal placement of the distal screw but the area around the nail hole where the lag screw is inserted becomes more stressed. Furthermore, for Fi-nails with a pair of distal screws, placing the pair of distal screws at a specific location is most beneficial for the mechanical behavior of the femur/Fi-nail assembly.
Date Issued
2009-10-01
Date Acceptance
2009-10-01
Citation
Journal of Orthopaedics, 2009, 2009 (6)
URI
ISSN
0972-978X
Publisher
Elsevier
Journal / Book Title
Journal of Orthopaedics
Volume
2009
Issue
6
Copyright Statement
© Copyright of articles belongs to the respective authors unless otherwise specified.Verbatim copying, redistribution and storage of this article permitted provided no restrictions are imposed on the access and a hyperlink to the original article in Journal of Orthopaedics maintained. All opinion stated are exclusively that of the author(s). Journal of Orthopaedics upholds the policy of Open Access to Scientific literature.
Publication Status
Published
Article Number
e1
Date Publish Online
2009-10-01