The effect of cup outer sizes on the contact mechanics and cement fixation of cemented total hip replacements

Medical Engineering & Physics
Xijin HuaZhongmin Jin

Abstract

One important loosening mechanism of the cemented total hip arthroplasty is the mechanical overload at the bone-cement interface and consequent failure of the cement fixation. Clinical studies have revealed that the outer diameter of the acetabular component is a key factor in influencing aseptic loosening of the hip arthroplasty. The aim of the present study was to investigate the influence of the cup outer diameter on the contact mechanics and cement fixation of a cemented total hip replacement (THR) with different wear penetration depths and under different cup inclination angles using finite element (FE) method. A three-dimensional FE model was developed based on a typical Charnley hip prosthesis. Two acetabular cup designs with outer diameters of 40 and 43 mm were modelled and the effect of cup outer diameter, penetration depth and cup inclination angle on the contact mechanics and cement fixation stresses in the cemented THR were studied. The results showed that for all penetration depths and cup inclination angles considered, the contact mechanics in terms of peak von Mises stress in the acetabular cup and peak contact pressure at the bearing surface for the two cup designs were similar (within 5%). However, the peak von...Continue Reading

References

Dec 1, 1993·Acta Orthopaedica Scandinavica·R Huiskes
Apr 1, 1993·Journal of Biomechanics·M DalstraL van Erning
Aug 1, 1995·Journal of Biomechanical Engineering·M DalstraL van Erning
Dec 16, 1998·The Journal of Bone and Joint Surgery. British Volume·R M HallA Unsworth
May 18, 1999·Journal of Biomechanics·B A McCormack, P J Prendergast
Jun 19, 2001·Journal of Biomechanics·G BergmannG N Duda
Sep 1, 2004·Journal of Biomechanics·Do-Gyoon KimKenneth A Mann
Oct 12, 2004·Biomaterials·Eileen Ingham, John Fisher
Nov 16, 2004·The Orthopedic Clinics of North America·Klaus-Dieter KuehnUdo Gopp
Aug 5, 2005·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·D ArolaD T Yang
Dec 6, 2005·Journal of Biomechanics·Phillip Heaton-AdegbileJie Tong
Jun 6, 2006·Acta Orthopaedica·Mikael SundfeldtChristina Gretzer
Apr 28, 2007·The Journal of Bone and Joint Surgery. British Volume·I UdofiaP Grigoris
Sep 6, 2007·The Journal of Bone and Joint Surgery. British Volume·B M WroblewskiP A Fleming
Apr 17, 2008·Journal of Biomechanical Engineering·N P ZantJ Tong
Feb 17, 2009·Computer Methods in Biomechanics and Biomedical Engineering·J-M S LamvoheeJ K Dowell
Mar 28, 2009·International Journal of Fatigue·J TongJ G Hussell
Jul 1, 2007·International Journal of Fatigue·Nikolaus P ZantJie Tong
Apr 2, 2009·The Journal of Bone and Joint Surgery. British Volume·B M WroblewskiP A Fleming
Jul 2, 2009·The Journal of Bone and Joint Surgery. British Volume·B M WroblewskiP A Fleming
Nov 4, 2009·The Journal of Bone and Joint Surgery. American Volume·John J CallaghanRichard C Johnston

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Citations

May 19, 2018·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Teresa Alonso-RasgadoTim N Board
Jan 17, 2020·International Journal for Numerical Methods in Biomedical Engineering·Irwan S M MoideenDesmond Y R Chong

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