A Finite Element Analysis of Stress on the Femoral Stem with Resorption of Proximal Medial Femur after Total Hip Replacement

대퇴골 근위부 골흡수가 인공 고관절 대퇴 stem에 미치는 응력에 관한 연구-FEM을 이용한 분석

  • 김성곤 (고려대학교 의과대학 정형외과학교실)
  • Published : 1994.06.01

Abstract

In clinical orthopaedics, bone resoption in the cortex is often seen post operatively on X-rays or bone densitometry after total hip replacement (THR) in the form of cortical osteoporosis or atropy. Stress shielding of bone occurs, when a load, normally carried by the bone alone, is shared with an implant as a result, the bone stresses are abnormal and with remodelling analysis this may cause extensive proximal bone resoption, possibly weakening the bone bed to the point of failure. The author made finite element models of the cemented and non-cemented type implanted femoral stem with bone resorption of the proximal medial femur and studied the feed back effect of the various degree of bone resoption to THR system by parametric analysis on the stress of the femoral stem and interface. The results of the present finite element analysis implied that the extent of proximal bone resorption has the effect of more increasing stress on the distal stem tip, cement mantle and interface in both type of femoral stem and this high distal stress possibly can cause the mechanical failure of loosening or failure after THR.

Keywords

References

  1. J. Orthop. Res. v.85 An approach for time-dependent bone modeling and remodeling-application : A preliminary remodeling simulation Beaupre',G.S.;Orr,T.E.;Carter,D.R.
  2. Clin Orthop v.261 The effect of stem stiffness on femoral bone rasorption after canine porous-coated total hiparthroplasty Bobyn,J.D.;Glassman,A.H.;Goto,H.;Krygier,J.J.;Miller,J.E.;Brooks,C.E.
  3. Acta orthop Scand v.43 A new method to analyse the mechanical behaviour of skeletal parts Brekelmans,W.A.M.;Poort.H.W.;Slooff,T.J.J.H.A
  4. J Bone Joint Surg v.69B Porous coated hip replacement : The factors governing bone ingrowth, stress shielding, and clinical results Engh,C.A.;Bobyn,J.D.;Glassman,A.H.
  5. J. Biomechanics v.21 Limitations of the continuum assumption in cancellous bone Harrigan,T.P.;Jasty,M.;Mann,R.W.;Harris,W.H.
  6. J. Biomechanics v.16 A surver of finite element analysis in orthopaedic bimechanics : the first decade Huiskes,R.;Chao,E.Y.S.
  7. J. Biomech v.20 no.11;12 Adaptive bone remodeling theory applied to prosthetic-design analysis Huiskes,R.;Weinans,H.;Grootenboer,H.J.(et al.)
  8. Clin. Orthop. Rel Res. v.261 The various stress patterns of press-fit, ingrown. and cemented femoral stems Huiskes,R.
  9. Clin. Orthop. v.274 The relationship between stress shielding and bone resorption around total hip stems and the effects of flexible materials Huiskes,R.;Weinans,H.;Rietbergens,B.van
  10. J. Biomechanics Effects of porous coating and collar support on early load transfer for a cementless hip prosthesis Keaveny,T.M.;Bartel,D.L.
  11. J. Biomechnics v.25 A finite element model for evaluation of tibial prosthesis-bone interface in total knee replacement Rakotomanana,R.L.;Leyvraz,P.F.;Curnier,A.;Heegard,J.H.;Rubin,P.J.
  12. J. Biomechanics v.21 A nonlinear finite element analysis of interface conditions in porous coated hip endoprostheses Rohlmann,A.;Cheal,E.J.;mHayes,W.C.;Bergmann,G.
  13. J. Biomech. v.26 no.11/12 Frictional interface micromotions and anisotropic stress distribution in a femoral total hip component Rubin,P.J.;Rakotomanana,R.L.;Leyvraz,P.F.;Zysset,P.K.;Curnier,A.;Heegard,J.H.
  14. J Bone Joint Surg v.68A A Comparative study of porous coating in a weight-bearing total hip-arthroplasty model Turner,T.M.;Summer,D.R.;Urban,R.M.(et al.)
  15. Proc. 7th Meeting of the Europe Society Biomechanics FEM analyses of hip prostheses:validity of the 2-D side-plate model and the effects of torsion Verdonschot,N.;Huiskes,R.
  16. J. orthop. Res Adaptive bone remodeling around bonded noncemented THA : a comparison between animal experiments and computer simulation Weinans,H.;Huiskes,R.;van Rietbergen,B.;Summer,D.R.;Turner,T.M.;Galante,J.O.