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Biomechanical Measurement Error Can Be Caused by Fujifilm Thickness: A Theoretical, Experimental, and Computational Analysis
Joint Authors
Schemitsch, Emil H.
Sarwar, Ahmed
Srivastava, Simli
Chu, Chris
Machin, Alan
Bagheri, Zahra S.
Zdero, Radovan
Bougherara, Habiba
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-16
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
This is the first study to quantify the measurement error due to the physical thickness of Fujifilm for several material combinations relevant to orthopaedics.
Theoretical and experimental analyses were conducted for cylinder-on-flat indentation over a series of forces (750 and 3000 N), cylinder diameters (0 to 80 mm), and material combinations (metal-on-metal, MOM; metal-on-polymer, MOP; metal-on-bone, MOB).
For the scenario without Fujifilm, classic Hertzian theory predicted the true line-type contact width as WO={(8FDcyl)/(πLcyl)[(1-νcyl2)/Ecyl+(1-νflat2)/Eflat]}1/2, where F is compressive force, Dcyl is cylinder diameter, Lcyl is cylinder length, νcyl and νflat are cylinder and flat Poisson’s ratios, and Ecyl and Eflat are cylinder and flat elastic moduli.
For the scenario with Fujifilm, experimental measurements resulted in contact widths of WF=0.1778×F0.2273×D0.2936 for MOM tests, WF=0.0449×F0.4664×D0.4201 for MOP tests, and WF=0.1647×F0.2397×D0.3394 for MOB tests, where F is compressive force and D is cylinder diameter.
Fujifilm thickness error ratio WF/WO showed a nonlinear decrease versus cylinder diameter, whilst error graphs shifted down as force increased.
Computational finite element analysis for several test cases agreed with theoretical and experimental data, respectively, to within 3.3% and 1.4%.
Despite its wide use, Fujifilm’s measurement errors must be kept in mind when employed in orthopaedic biomechanics research.
American Psychological Association (APA)
Sarwar, Ahmed& Srivastava, Simli& Chu, Chris& Machin, Alan& Schemitsch, Emil H.& Bougherara, Habiba…[et al.]. 2017. Biomechanical Measurement Error Can Be Caused by Fujifilm Thickness: A Theoretical, Experimental, and Computational Analysis. BioMed Research International،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1136969
Modern Language Association (MLA)
Sarwar, Ahmed…[et al.]. Biomechanical Measurement Error Can Be Caused by Fujifilm Thickness: A Theoretical, Experimental, and Computational Analysis. BioMed Research International No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1136969
American Medical Association (AMA)
Sarwar, Ahmed& Srivastava, Simli& Chu, Chris& Machin, Alan& Schemitsch, Emil H.& Bougherara, Habiba…[et al.]. Biomechanical Measurement Error Can Be Caused by Fujifilm Thickness: A Theoretical, Experimental, and Computational Analysis. BioMed Research International. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1136969
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1136969