Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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FEM Analysis of Lumbar Interbody Fusion using the Cage and Screw in Relation to Bone Mineral Density

골밀도 변화에 따른 cage와 나사를 이용한 추체간 유합술의 유한요소 해석

  • Kim H. S. (Dept. of Mechanical Engineering, Dong-A University) ;
  • Park J. H. (Dept. of Mechanical Engineering, Graduate school, Dong-A University)
  • 김현수 (동아대학교 기계공학과) ;
  • 박정호 (동아대학교 기계공학과 대학원)
  • Published : 2004.12.01
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Abstract

Three dimensional finite element models of lumbar interbody fusion using rage and screws were constructed for the simulation of stress distribution and maximum displacement. It is also performed to investigate the efforts of osteoporosis and the location of cage on the stress distribution. It is known from the results that the increase of the strength of trabecular bone causes to decrease the stress of cortical bone and to increase the stress of trabecular bone. And it is found that the trend of stress distribution is changed by the change of location of cage and proper location of cage enhances the rate of operational success.

Cage와 나사를 이용하여 유합된 추체의 3차원 유한 요소 모델을 제작하여, 골밀도의 변화에 따른 골다공증과 cage의 위치 변화에 대해, Von-Mites 최대 응력과 최대 변형량을 살펴보았다. 그 결과 해면골의 강도가 증가함에 따라서, 피질골의 응력은 감소하고, 해면골에서의 응력은 증가하였다. 또한 cage의 위치의 변화에 따라서 추체의 응력 분포의 양상이 달라짐을 알 수 있었으며, 이를 통해 수술의 성공도를 높이고자 한다.

Keywords

References

  1. D.S. Brodke, J.C. Dick, D.N. Kunz,R. Mc Cabe ,T.A Zdeblick, 'Posterior lumbar interbody fusion. A biochemical comparison including a new threaded cage', Spine, Vol. 22, pp. 26-31, 1997
  2. J. Harms, 'Cage interbody fusion with pedicle screw system', personal communication, 1999
  3. P.C. McAfee, 'Current concept review : Interbody fusion cages in reconstructive operation on the spine', J Bone Joint Surg., 81-A, pp. 859-880, 1999
  4. B.K. Weiner, R.D. Fraser, 'Spine update lumbar interbody cage', Spine, Vol 23, pp. 634-740, 1998
  5. Y. Kim, 'The mechanical sensitivity at interfaces between bone and interbody cage of lumbar spine segments'. J.Biomed.Eng.Res., Vol.21, No.3 , pp.295-301, 2000
  6. Thomas Zander, Antonius Rohlmann, Constantin Klockner, Georg Bergmann, 'Effect of bone graft characteristics on the mechanical behavior of the lumbar spine', Journal of Biomechanics, Vol 35, pp. 491-497, 2002
  7. J.L Wang, M. Parniampaur, A. Shirazi-Adl, A. E. Engin, 'Rate effect on sharing of passiνe lumbar motion segment under load -controlled sagittal flexion: viscoelastic finite element analysis', Thearical and applied fracture mechanics, Vol 32, pp. 119-128, 1999
  8. 박기훈, 김현수, '나사 및 cage가 삽입된 추체의 유한요소해석', 동아대학교 석사학위논문, 2001
  9. M.M. Panjabi,V. Goel, T. Oxland, K. Takata, J. Duranceau, M. Krag, M. Price, 'Human lumbar vertebrae. Quantitative three dimensional anatomy', Spine, Vol 17, pp. 299-306, 1992
  10. M.M. Panjabi, T. Oxland, K. Takata, V. Gael, J. Duranceau, M. Krag, 'Articular facets of the human spine. Quantitative three -dimensional anatomy', Spine, Vol 18, pp. 1298-1310, 1993
  11. A. Shirazi-Adl , M. Dammak , Paiement , 'Experimental Determination of Friction Characteristics at the trabecular bone / Porous-coded Metal Interface in Cementless Implant', Journal of Biomedical Materials Research, Vol 27, pp. 167-175, 1993
  12. A. Alonso Vazquez, H. Lange-Pedersen, L. Lidgren, M. Taylor, 'Stability of Ankle Arthrodesis with Internal Fixation. A Preliminary Finite Element Study' Bioengineering Science, School of Engineering Science, University of SouthHampton, Department of Orthopaedics, Lund University Hospital, Sweden
  13. T.J. Shin, S.J. Lee, J.W. Shin, H. Chang, 'Analysis of biomechanical responses for the anterior cervical plate fixation in relation to bone mineral density', J.Biomed.Eng.Res., Vol. 22, No.1, pp. 69-80, 2001
  14. Stephan C. Cowin, 'Bone Mechanics Handbook ' second edition, pp.16-3, 2001
  15. Myer kurz, 'Standard handbook of biomedical engineering and design', pp. 8-1-9-9, 2003
  16. H.J. Lee, H.5. Choi , M.H. Ahn, J.I. Song, 'Mechanical characterization of the pedicle screw system for thoracolumbar spine', J.Biomed.Eng.Res., Vol. 23, No.1, pp. 17-26, 2002
  17. J.5. Thalgott, J.M. Giuffre, Z. KIezl, M. Timlin, 'Anterior lumbar interbody fusion with titanium mesh cages, coralline hydroxyapatite, and demineralized bone matrix as part of a circumferential fusion', The Spine Journal, Vol 2, pp. 63-69, 2002
  18. A. Rohlmann, G. Bergmann, F. Graichen, H-M. Mayer, 'Placing a bone graft more posteriorly may reduce the risk of pedicle screw breakage : analysis of an unexpected case of pedicle screw breakage', Journal of biomechanics, Vol 31, pp. 763-767, 1998
  19. L. Mosekilde, C.C.Danielsen, 'Biomechanical competence of vertebral trabecular bone in relation to ash density and age in normal individuals', Bone, Vol.8, pp.79-85, 1987
  20. T. Zander, A. Rohlmann, J. Calisse, G. Bergmann, 'Estimation of muscle force in the lumbar spine during upper body inclination', Clinical Biomechanics, No 1, pp.73-80, 2001