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Using an orthopaedic biomechanics project to reinforce solid mechanics principles

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Conference

2011 ASEE Annual Conference & Exposition

Location

Vancouver, BC

Publication Date

June 26, 2011

Start Date

June 26, 2011

End Date

June 29, 2011

ISSN

2153-5965

Conference Session

Teaching Mechanics

Tagged Division

Mechanics

Page Count

10

Page Numbers

22.1608.1 - 22.1608.10

DOI

10.18260/1-2--18872

Permanent URL

https://peer.asee.org/18872

Download Count

45

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Paper Authors

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Jennifer Kadlowec Rowan University

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Andrew D. Rosenthal Rowan University

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Patrick C. Leung Rowan University, Undergraduate Student

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Alexander Vincent Redfield Rowan University

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Abstract

Using an orthopaedic biomechanics project to reinforce solid mechanics principlesJennifer Kadlowec, Ph.D.Robert F. Ostrum, MDThe treatment of long bone fractures with an intramedullary nail has become an acceptedpractice with surgical techniques and implants being refined over the last 70 years.Comminution of the cortical bone and its concomitant lack of inherent stability have ledto the use of interlocking nails to control length and rotation in unstable fracture patterns.A clinical question of “what is the clinical significance of fracture comminution and post-operative cortical contact?”, provides a real-world example for reinforcing the conceptsfrom mechanics of materials.A team of junior and senior students investigate the stiffness of an interlocked IM nailand tibial Sawbone construct associated with increasing cortical comminution. Byemploying an 8mm nail with 4mm screws and an 11mm nail with 5 mm screws, withdifferent screw placement scenarios, the investigators hope to be able to makerecommendations for the clinical application of the implants. Cyclic axial loading in anonfailure mode will give stiffness results that can be extrapolated for use during theearly phases of fracture care when the stability of the limb is being provided solely by theimplant.This paper will report on the various design of experiment aspects and mechanics ofmaterials concepts employed by the students and the ability of the students to express thedesign and experimental processes and results in a final written report.

Kadlowec, J., & Rosenthal, A. D., & Leung, P. C., & Redfield, A. V. (2011, June), Using an orthopaedic biomechanics project to reinforce solid mechanics principles Paper presented at 2011 ASEE Annual Conference & Exposition, Vancouver, BC. 10.18260/1-2--18872

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