_STP_1535-2012.pdf

Journal of ASTM International Selected Technical Papers STP1535Static and Dynamic Spinal Implants:Are We Evaluating Them Appropriately?JAI Guest Editors:Laura M.JensenDavid B.SpencinerJove GrahamPaul A.AndersonASTM International100 Barr Harbor DrivePO Box C700West Conshohocken,PA 19428-2959Printed in the U.S.A.ASTM Stock#:STP1535 Library of Congress Cataloging-in-Publication DataStatic and dynamic spinal implants:are we evaluating them appropriately?/guest editors,Laura M.Jensen et al.p.cm.-(JAI;STP 1535)Includes bibliographical references and indexes.ISBN 978-0-8031-7521-1(alk.paper)I.Jensen,Laura M.,1974-II.ASTM International.III.Series:Journal of ASTM International.Selected technical papers;STP 1535.DNLM:1.Spine-surgery.2.Device Approval.3.Implants,Experimental.4.Prosthesis Design.WE 725617.4 710592-dc23 2012013744Copyright 2012 ASTM INTERNATIONAL,West Conshohocken,PA.All rights reserved.This material may not be reproduced or copied,in whole or in part,in any printed,mechanical,electronic,fi lm,or other distribution and storage media,without the written consent of the publisher.Journal of ASTM International(JAI)ScopeThe JAI is a multi-disciplinary forum to serve the international scientifi c and engineering community through the timely publication of the results of original research and critical review articles in the physical and life sciences and engineering technologies.These peer-reviewed papers cover diverse topics relevant to the science and research that establish the foundation for standards development within ASTM International.Photocopy RightsAuthorization to photocopy items for internal,personal,or educational classroom use,or the internal,personal,or educational classroom use of specifi c clients,is granted by ASTM International provided that the appropriate fee is paid to ASTM International,100 Barr Harbor Drive,P.O.Box C700,West Conshohocken,PA 19428-2959,Tel:610-832-9634;online:http:/www.astm.org/copyright.The Society is not responsible,as a body,for the statements and opinions expressed in this publication.ASTM International does not endorse any products represented in this publication.Peer Review PolicyEach paper published in this volume was evaluated by two peer reviewers and at least one editor.The authors addressed all of the reviewers comments to the satisfaction of both the technical editor(s)and the ASTM International Committee on Publications.The quality of the papers in this publication refl ects not only the obvious efforts of the au-thors and the technical editor(s),but also the work of the peer reviewers.In keeping with long-standing publication practices,ASTM International maintains the anonymity of the peer reviewers.The ASTM International Committee on Publications acknowledges with appreciation their dedication and contribution of time and effort on behalf of ASTM International.Citation of PapersWhen citing papers from this publication,the appropriate citation includes the paper authors,“paper title”,J.ASTM Intl.,volume and number,Paper doi,ASTM International,West Conshohocken,PA,Paper,year listed in the footnote of the paper.A citation is provided as a footnote on page one of each paper.Printed in Baltimore,MDMay,2012 ForewordTHIS COMPILATION OF THE JOURNAL OF ASTM INTERNATIONAL(JAI),STP1535 Static and Dynamic Spinal Implants:Are We Evaluating Them Appropriately?contains papers that were presented at a symposium in San Antonio,TX,on November 16,2010 and sponsored by ASTM Committees F04 on Medical and Surgical Materials and Devices and F04.25 on Spinal Devices.The Symposium Chairs and JAI Guest Editors are Laura M.Jensen,MS,Zimmer Spine,Minneapolis,MN,David Spenciner,PE,ScM,MBA,DePuy Mitek(Johnson&Johnson),Raynham,MA,Jove Graham,PhD,Geisinger Center for Health Research,Danville,PA,and Paul Anderson,MD,Univer-sity of Wisconsin-Madison,Madison,WI.ContentsOverview.viiAcknowledgments.xiInterbody Fusion DevicesKinematic Stability Evaluation of Spinal Fusion Devices by Synthetic FSU ModelT.Hansen.3Comparison of Two Bone Surrogates for Interbody Device Subsidence TestingA.K.Aiyangar,A.G.Au,P.A.Anderson,and H.-L.Ploeg .15Symposium on Static and Dynamic Spinal Implants:Are We Evaluating Them Appropriately?C.W.Metheny.25ErrataTitle Correction,ASTM F2077-03 Static CompressionShear Fixture Variations.33Disc and Nucleus DevicesComparison of Daily Motion of the Cervical and Lumbar Spine to ASTM F2423-11 and ISO 18192-1.2011 Standard TestingD.Cobian,B.Heiderscheit,N.Daehn,and P.A.Anderson .37Wear Simulation of Total Disc Arthroplasties:Sensitivity to Device Design and Test ParametersP.Hyde,R.Vicars,J.Fisher,and R.Hall .51How Frequency Affects Fatigue Testing of an Artifi cial Disc With a Viscoelastic Polymer CoreR.L.Blice,K.B.Zimmers,and R.Linovitz .66Derivation of Clinically Relevant Boundary Conditions Suitable for Evaluation of Chronic Impingement of Lumbar Total Disk Replacement:Application to Standard DevelopmentS.A.Rundell,J.S.Day,J.Isaza,R.Siskey,D.MacDonald,and S.M.Kurtz .73In vi