Modularity of Orthopedic Implants

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2 STP 1301 Modularity of Orthopedic Implants Donald E. Marlowe, Jack E. Parr, and Michael B. Mayor, Editors ASTM Publication Code Number (PCN): ASTM 100 Barr Harbor Drive West Conshohocken, PA Printed in the U.S.A.

3 ISBN: ASTM Publication Code Number (PCN): Copyright AMERICAN SOCIETY FOR TESTING AND MATERIALS, West Conshohocken, PA. All rights reserved. This material may not be reproduced or copied, in whole or in part, in any printed, mechanical, electronic, film, or other distribution and storage media, without the written consent of the publisher. Photocopy Rights Authorization to photocopy items for internal, personal, or educational classroom use, or the internal, personal, or educational classroom use of specific clients, is granted by the American Society for Testing and Materials (ASTM) provided that the appropriate fee is paid to the Copyright Clearance Center, 222 Rosewood Dr., Danvers, MA 01923; Tel: ; online: ht.com/. Peer Review Policy Each 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 Committee on Publications. To make technical information available as quickly as possible, the peer-reviewed papers in this publication were prepared "camera-ready" as submitted by the authors. The quality of the papers in this publication reflects not only the obvious efforts of the authors and the technical editor(s), but also the work of these peer reviewers. The ASTM Committee on Publications acknowledges with appreciation their dedication and contribution of time and effort on behalf of ASTM. Printed in Philadelphia, PA March 1997

4 Foreword This publication, Modularity of Orthopedic Implants, contains papers presented at the Symposium on Modularity of Orthopedic Implants held 8 November 1995 in Norfolk, VA. The symposium was sponsored by ASTM Committee F4 on Medical and Surgical Materials and Devices. Donald E. Marlowe, of the FDA Center for Devices and Radiological Health in Rockville, MD; Jack E. Parr, with Wright Medical Technologies in Memphis, TN; and Michael B. Mayor, with the Dartmouth Hitchcock Medical Center in Lebanon, NH, presided as symposium chairmen and are editors of the resulting publication.

5 Contents Overview CLINICAL RELEVANCE A Review of the Use of Modularity in Total Shoulder Arthroplasty JOSEPH D. ZUCKERMAN, RUSSELL J. CAVALLO, AND FREDERICK J. KUMMER ISSUES OF CONCERN The Fibrous Tissue Interface Surrounding Well-Fixed, Revised, Cementless Acetabular Components for Hip Replacement ~ STUART B. GOODMAN, PHIL HUIE, YONG SONG, MIKE O'CONNOR, STEVEN T. WOOLSON, WILLIAM J. MALONEY, DAVID J. SCHURMAN, AND RICHARD SIBLEY 21 Characterization of Solid Products of Corrosion Generated by Modular-Head Femoral Stems of Different Designs and Materials m ROBERT M. URBAN, JOSHUA J. JACOBS, JEREMY L GILBERT, STEPHEN B. RICE, MURALI JASTY, CHARLES R. BRAGDON AND JORGE O. GALANTE 33 The Mechanical and Electrochemical Processes Associated with Taper Fretting Crevice Corrosion: A Review -- JEREMY L GILBERT AND JOSHUA J. JACOBS Wear of Non-Articulating Surfaces in Modular Acetabular Cups JEFFREY J. SHEA, RICHARD D. LAMBERT, AND TERRY W. McLEAN Marking of Ceramic Femoral Heads -- BERNARD J. CALI~S STATE OF THE ART IN PROPERTIES TESTING I Test Method for Fatigue of a Modular Posterior-Stabilized Tibial Component -- MARY E. ANTHONY, MICHAEL B. COOPER, AND JEFFREY A. HOLBROOK Test Method for Evaluating Motion Between the Polymeric Articulating Surface and the Tibial Tray of Modular Total Knee Systems LYNN A. KIRKPATRICK Test Method for the Assessment of Fretting at the Femoral Head and Neck Taper Interface m TERRY W. McLEAN AND RICHARD D. LAMBERT

6 Assessing Morse Taper Function: The Relationship Between Impaction Force, Disassembly Force, and Design Variables m ANDREW H. SCHMIDT DEB A. LOCH, JOAN E. BECHTOLD, AND RICHARD F. KYLE Influence of the Ball/Stem-Interface on the Load Bearing Capability of Modular Total Hip Endoprostheses -- HERBERT G. RICHTER, GERD WILLMAN, MARTIN WIMMER, AND FRANK G. OSTHUES STATE OF THE ART IN PROPERTIES TESTING II Fatigue Integrity Test of a Modular Tibial Stem Extension MICHAEL B. COOPER, MARY E. ANTHONY, ABRAHAM B. SALEHI, AND JEFF A. HOLBROOK Fretting Corrosion Fatigue Study of Modular Joints in Total Hip Replacements by Accelerated In Vitro Testing -- SUSHIL K. BHAMBRI AND LESLIE N. GILBERTSON Corrosion Testing of Modular Hip Implants --JAY R. GOLDBERG, CHRISTINE A. BUCKLEY, JOSHUA J. JACOBS, AND JEREMY L. GILBERT Test Method Comparing Torsional Fatigue of Modular Acetabular Components m RICHARD D. LAMBERT AND TERRY W. McLEAN Effects of Neck Extension, Coverage, and Frequency on the Fretting Corrosion of Modular THR Bore and Cone Interface STANLEY A. BROWN, ALULA ABERA, MARK D'ONOFRIO, AND CURT FLEMMING The Importance of Fatigue Loading When Assessing Liner/Shell Distraction Resistance and Congruency for Modular Acetabular Components DOMINIC R. FOSCO AND DENNIS J. BUCHANAN Fretting Corrosion Mechanisms at Modular Implant Interfaces -- SHILESH C. JANI, WILLARD L. SAUER, TERRY W. McLEAN, RICHARD D. LAMBERT AND PAUL KOVACS Femoral Stem Fatigue Characteristics of Modular Hip Designs -- CHRISTINE S. HEIM, PAUL D. POSTAK, AND A. SETH GREENWALD Author Index Subject Index

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