An axisymmetric model of acetabular components in total hip arthroplasty

Pedersen, Douglas R.<sup>1</sup>; Crowninshield, Roy D.<sup>1</sup>; Brand, Richard A.<sup>1</sup>; Johnston, Richard C.<sup>1</sup>

Affiliations

¹Biomechanics Laboratory, Department of Orthopaedic Surgery, University of Iowa Hospitals, Iowa City, Iowa 52242, U.S.A.

Abstract

An axisymmetric finite element model with nonaxisymmetric loading of an acetabular arthroplasty and the surrounding pelvic bone is presented. Model variations include ultra high density polyethylene acetabular components of varying wall thicknesses and metal backed ultra high density polyethylene components. Each of the two component types is modeled as implanted within an acetabulum with intact subchondral bone and within an acetabulum without subchondral bone. Thin wall polyethylene acetabular prostheses are predicted to increase, relative to thick wall components, maximum stresses in the cement-bone composite. Trabecular bone stresses are predicted to increase with the removal of subchondral bone. Stiffer metal-backed acetabular components are predicted to reduce maximum cement and bone stresses and to abridge the effects of altered component wall thickness and of subchondral bone removal.

Links

DOI: 10.1016/0021-9290(82)90176-2

PubMed: 7096385

WoS: A1982NS39100008

History

Received: 1981-03-9

Revised: 1981-10-14

Cited Works (3)

Year	Entry
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Cited By (13)

Year	Entry
1983	Huiskes R, Chao EYS. A survey of finite element analysis in orthopedic biomechanics: the first decade. J Biomech. 1983;16(6):385-409.
1984	Brown TD, DiGioia AM III. A contact-coupled finite element analysis of the natural adult hip. J Biomech. 1984;17(6):437-448.
1993	Dalstra M, Huiskes R, Odgaard A, van Erning L. Mechanical and textural properties of pelvic trabecular bone. J Biomech. April–May 1993;26(4-5):523-535.
1995	Dalstra M, Huisker R. Load transfer across the pelvic bone. J Biomech. June 1995;28(6):715-724.
1995	Dalstra M, Huiskes R, van Erning L. Development and validation of a three-dimensional finite element model of the pelvic bone. J Biomech Eng. August 1995;117(3):272-278.
2005	Anderson AE, Peters CL, Tuttle BD, Weiss JA. Subject-specific finite element model of the pelvis: development, validation and sensitivity studies. J Biomech Eng. June 2005;127(3):365-373.
2010	Madry H, van Dijk CN, Mueller-Gerbl M. The basic science of the subchondral bone. Knee Surg Sports Traumatol Arthrosc. April 2010;18(4):419-433.
2017	Webster CE. The Blast Pelvis [PhD thesis]. Imperial College London; October 2017.
1994	Levenston ME. Simulation of Functional Adaptation in Trabecular and Cortical Bone [PhD thesis]. Stanford University; September 1994.
1989	Anderson DD. Finite Element Analyses of the Impulsively Loaded Extension-Splinted Rabbit Knee [PhD thesis]. University of Iowa; December 1989.
1997	Maxian TA. Development and Application of a Finite Element Formulation for Estimating Sliding Wear in Total Hip Arthroplasty [PhD thesis]. University of Iowa; 1997.
1999	Scifert CF. A Finite Element Investigation Into the Biomechanics of Total Artificial Hip Dislocation [PhD thesis]. University of Iowa; May 1999.
2007	Anderson AE. Computational Modeling of Hip Joint Mechanics [PhD thesis]. University of Utah; April 2007.