_STP_1008
1989
STP 1008 Intramedullary Rods:Clinical Performance and Related Laboratory Testing J.Paul Harvey,Jr.,A.U.Daniels,and Robert F.Games,editors 1916 Race Street Philadelphia,PA 19103 Copyright by ASTM Intl(all rights reserved);Thu Dec 31 15:24:02 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.ASTM Publication Code Number(PCN):04-010080-54 Library of Congress Number:89-58 SBN:0-8031-1181-9 Copyright?9 by AMERICAN SOCIETY FOR TESTING AND MATERIALS 1989 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Peer Review Policy Each paper published in this volume was evaluated by three peer reviewers,The authors addressed all of the reviewers comments to the satisfaction of both the technical editor(s)and the ASTM Committee on Publications.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 ef-fort on behalf of ASTM.Printed in Ann Arbor.MI March 1989 Copyright by ASTM Intl(all rights reserved);Thu Dec 31 15:24:02 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword The papers in this publication,Intramedullary Rods:Clinical Performance and Related Lab-oratory Testing,were presented at the symposium on Femoral lntramedullary Rods:Clinical Performance and Related Laboratory Testing held 12-13 May 1987 in Cincinnati,Ohio.The symposium was sponsored by ASTM Committee F-4 on Medical and Surgical Materials and Devices and the Committee on Biomedical Engineering of the American Academy of Orthope-dic Surgeons.J.P.Harvey,Jr.,USC School of Medicine,A.U.Daniels,University of Utah,and R.F.Games,Richards Medical Company,Inc.,presided as symposium chairmen and are editors of this publication.Copyright by ASTM Intl(all rights reserved);Thu Dec 31 15:24:02 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Overview Mechanical Properties of Kiintscher Nali Sections-A.u.DANIELS,NORMAN R.BAYNE,AND AARON A.HOFMANN Calculation and Experimental Analysis of Forces and Stresses in Intramedullary Nail Models-FRANK BAUMGART AND H.I.BECKER Testing Method for Evaluating Bending Stiffness and Torsional Stability of Femurs Implanted with Intrameduilary Nails-MICHAEL X.BUTTS,JOAN E.BECHTOLD,DAVID A.HOELTZEL,RICHARD F.KYLE,AND RAMON B.GUSTILO Testing of Intramedullary Nails Using Physiological Loading-LANCE L.BEAR,JAMES J.HAMILTON,ABDUL A.SUKERE,GARY LYNCH,AND JAMES A.DAVIDSON Modeling the Insertion of a Ziekel Rod into the Femur-ALLEN H.HOFPMAN,ANN-MARIE DALY,STEVEN A.OLIVIERI,AND THOM A.TARQUINIO Mechanics of Distal Locking in Intramedullary Rods:Comparison in Osteoporotle and Normal Femurs-LOREN LATTA,GREGORY A.ZYCH,PHILIP GREENBARG,AND TED MILNE A Method to Evaluate Motion at the Bone Fracture Interlace on Intramedullary Nailing-GARY E.LYNCH AND JAMES A.DAVIDSON Comparison of Interlocking and Nonlnterloeking Intramedullary Nails in Bending and Torsion-JOAN E.BECHTOLD,JAMES M.SCHAFFHAUSEN,RICHARD F.KYLE,AND RAMON B.GUSTILO Stability o Subtrochanteric Femoral Fractures Fixed with Interlocking Intrameduilary Rods-HARRY MCKELLOP,EDWARD EBRAMZADEH,JOHN FORTUNE,AND AUGUSTO SARMIENTO Initial Mechanical Stability of Three Distally Locked Intramedullary Nail Systems-A.u.DANIELS,AARON A.HOFMANN,HUGH S.WEST,AND JAMES M.MORGAN Biomechanical Variables Affecting Stability and Stresses in the Fractured Femur During Intrameduilary Nailing-MICHAEL C.SHERMAN,ALLAN F.TENCER,AND KENNETH D.JOHNSON 10 20 26 34 44 53 60 65 80 87 Copyright by ASTM Intl(all rights reserved);Thu Dec 31 15:24:02 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.The Role of Medullary Reaming in Closed Nailing of Femur Fractures-JAMES A.AMIS,DONALD J.FRANK,JR.,WAYNE Z.BURKHEAD,JR.,AND ROBERT W.BUCHOLZ 108 The Brooker-Wills Femoral Nail:Technical Difficulties and Their Avoidance-KALMAN D.BLUMBERG,GREGORY A.HANKS,WILLIAM C.FOSTER,AND JOHN A.CARDEA 119 Distal Locking for Unstable Femoral Fractures:Is It Necessary?A Preliminary Report-FRED BEHRENS AND JAY JOHNSON 130 Intramedullary Fixation of Unstable Trochanteric Fractures of the Hip-STEPHEN L.HENRY,THOMAS KOENIG,SHARI ROSENBERG,AND DAVID SELIGSON 137 Intramedullary Nailing of Femoral Shaft Fractures Using the Hansen-Street Nail-DANIEL STEIN,FABIAN FROANO,PAUL JOHANSON,WILLIAM STRYKER,AND WILLIAM KIM 152 Intramedullary Nailing for Treatment of Diaphysial Nonunions of the Femur-GUALTIERO GUALTIERI,ITALO GUALTIERI,STEFANO GAGLIARDI,AND MATTHIAS HENDRIKS 154 Ender Nail Fixation i