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A Biomechanical Study Comparing Helical Blade with Screw Design for Sliding Hip Fixations of Unstable Intertrochanteric Fractures
Joint Authors
Leung, Frankie
Yuen, Grace
Lau, Tak-Wing
Yeung, Kelvin
Luo, Qiang
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-02-19
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Dynamic hip screw (DHS) is a well-established conventional implant for treating intertrochanteric fracture.
However, revision surgery sometimes still occurs due to the cutting out of implants.
A helical blade instead of threaded screw (DHS blade) was designed to improve the fixation power of the osteoporotic intertrochanteric fracture.
In this study, the biomechanical properties of DHS blade compared to the conventional DHS were evaluated using an unstable AO/OTA 31-A2 intertrochanteric fracture model.
Fifty synthetic proximal femoral bone models with such configuration were fixed with DHS and DHS blade in five different positions: centre-centre (CC), superior-centre (SC), inferior-center (IC), centre-anterior (CA), and centre-posterior (CP).
All models had undergone mechanical compression test, and the vertical and rotational displacements were recorded.
The results showed that DHS blade had less vertical or rotational displacement than the conventional DHS in CC, CA, and IC positions.
The greatest vertical and rotational displacements were found at CP position in both groups.
Overall speaking, DHS blade was superior in resisting vertical or rotational displacement in comparison to conventional DHS, and the centre-posterior position had the poorest performance in both groups.
American Psychological Association (APA)
Luo, Qiang& Yuen, Grace& Lau, Tak-Wing& Yeung, Kelvin& Leung, Frankie. 2013. A Biomechanical Study Comparing Helical Blade with Screw Design for Sliding Hip Fixations of Unstable Intertrochanteric Fractures. The Scientific World Journal،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-1032808
Modern Language Association (MLA)
Luo, Qiang…[et al.]. A Biomechanical Study Comparing Helical Blade with Screw Design for Sliding Hip Fixations of Unstable Intertrochanteric Fractures. The Scientific World Journal No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-1032808
American Medical Association (AMA)
Luo, Qiang& Yuen, Grace& Lau, Tak-Wing& Yeung, Kelvin& Leung, Frankie. A Biomechanical Study Comparing Helical Blade with Screw Design for Sliding Hip Fixations of Unstable Intertrochanteric Fractures. The Scientific World Journal. 2013. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-1032808
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1032808