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Shortening cemented femoral implants. An in vitro investigation to quantify exeter femoral implant rotational stability vs simulated implant length

Wilson, Lance J., Roe, John A., Pearcy, Mark J., & Crawford, Ross W. (2012) Shortening cemented femoral implants. An in vitro investigation to quantify exeter femoral implant rotational stability vs simulated implant length. Journal of Arthroplasty, 27(6), pp. 934-939.

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Abstract

The Exeter stems vary in length from 90 to 150 mm. The shorter stems generally have lower offsets. The purpose of this study was to determine if length of stem, with fixed offset, affected rotational stability. Mechanical testing was carried out on 10 implant-cement constructs with 2 loading profiles, rising from chair and stair climbing, at different simulated implant lengths using purpose-built apparatus. This paper presents a mechanism for clinically observed rotational stability and explains the mechanical characteristics required for rotational stability in Exeter femoral stems. © 2012.

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3 citations in Scopus
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3 citations in Web of Science®

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ID Code: 50913
Item Type: Journal Article
Keywords: Femoral implant, Implant design, Preclinical testing, Rotational stability, bone cement, article, biomechanics, bone prosthesis, climbing, daily life activity, femur, in vitro study, mechanical torsion, rotation, torque, treatment outcome
DOI: 10.1016/j.arth.2011.10.012
ISSN: 0883-5403
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 18 Jun 2012 08:48
Last Modified: 14 May 2013 16:16

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