The biomechanical effect of anteversion and modular neck offset on stress shielding for short-stem versus conventional long-stem hip implants

Medical Engineering & Physics
Peter GoshulakEmil H Schemitsch

Abstract

Short-stem hip implants are increasingly common since they preserve host bone stock and presumably reduce stress shielding by improving load distribution in the proximal femur. Stress shielding may lead to decreased bone density, implant loosening, and fracture. However, few biomechanical studies have examined short-stem hip implants. The purpose of this study was to compare short-stem vs. standard length stemmed implants for stress shielding effects due to anteversion-retroversion, anterior-posterior position, and modular neck offset. Twelve artificial femurs were implanted with either a short-stem modular-neck implant or a conventional length monolithic implant in 0° or 15° of anteversion. Three modular neck options were tested in the short-stem implants. Three control femurs remained intact. Femurs were mounted in adduction and subjected to axial loading. Strain gauge values were collected to validate a Finite Element (FE) model, which was used to simulate the full range of physiologically possible anteversion and anterior-posterior combinations (n = 25 combinations per implant). Calcar stress was compared between implants and across each implant's range of anteversion using one and two-way ANOVA. Stress shielding was define...Continue Reading

References

May 1, 1992·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·E J ChealW C Hayes
Jun 19, 2001·Journal of Biomechanics·G BergmannG N Duda
Sep 19, 2001·International Journal of Rehabilitation Research. Internationale Zeitschrift Für Rehabilitationsforschung. Revue Internationale De Recherches De Réadaptation·S J Mulholland, U P Wyss
Mar 24, 2004·Medical Engineering & Physics·G CheungM Papini
Nov 4, 2008·The Journal of Bone and Joint Surgery. British Volume·E T DavisE H Schemitsch
Dec 24, 2008·Clinical Biomechanics·Sune H PettersenBjørn Skallerud
Oct 19, 2010·Medical Engineering & Physics·Habiba BougheraraEmil H Schemitsch
Aug 3, 2012·The Journal of the American Academy of Orthopaedic Surgeons·Gregory G PolkowskiJohn C Clohisy
Nov 28, 2012·Journal of the Mechanical Behavior of Biomedical Materials·Hamid EbrahimiRad Zdero
Apr 5, 2013·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Ralf BiegerLutz Dürselen
Feb 4, 2014·BMC Musculoskeletal Disorders·Mohd Yusof BaharuddinAb Saman Abd Kader
Apr 1, 2015·Orthopedics·Gabriela von Lewinski, Thilo Floerkemeier

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Citations

Jun 16, 2014·Journal of Shoulder and Elbow Surgery·Christoph SpormannChristoph Kolling
Mar 19, 2020·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·David A CrawfordAdolph V Lombardi
Aug 20, 2020·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Ievgen LevadnyiYaodong Gu
Oct 1, 2019·Computer Methods in Biomechanics and Biomedical Engineering·Reza Rahchamani, Reza Soheilifard
Mar 23, 2017·Australasian Physical & Engineering Sciences in Medicine·Talip ÇelikYasin Kişioğlu
Oct 11, 2019·Australasian Physical & Engineering Sciences in Medicine·Talip Çelik, Yasin Kişioğlu
Oct 21, 2020·The Journal of Bone and Joint Surgery. American Volume·Pablo A SlullitelPaul E Beaulé
Jul 9, 2018·ACS Biomaterials Science & Engineering·Peng QinLai-Chang Zhang
Aug 25, 2021·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Musa GüngörürlerHasan Havıtçıoğlu

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