Biomechanical Fatigue Analysis of Cervical Plate Systems by using a Computer Simulation Based on Finite Element Method

유한요소법을 이용한 척추 삽입형 경추판 시스템에 대한 생체역학적 피로해석

  • 김성민 (건국대학교 의료생명대학 의학공학부) ;
  • 양인철 (건국대학교 일반대학원 신기술융합학과) ;
  • 조성윤 (유엔아이(주) 기술연구소)
  • Published : 2008.08.01

Abstract

In this study, we performed the biomechanical analysis of cervical plate systems by using a computer simulation based on finite element method to derive reliable model by analysis of design variables and fatigue behavior. To simulate the cervical spine movement in-vivo state by surgery, we modeled the cervical plate system which consisted of screws, rings, rivets, and plate and Ultra High Molecular Weight Polyethylene (UHMWPE) Block. The experiment of cervical plate system followed the ASTM F1717 standards that covered the materials and methods for the static and fatigue testing. The result of computer simulation is compared with experimented test. We expected this study is to derive reliable results by analysis of design variables and fatigue behavior for developing a new model.

Keywords

References

  1. KFDA, "Guidance for performance assessment of metallic orthopedic implant," 2006
  2. Heo, S., Son, K., Park, J. H. and Lee, S. J., "Biomechanical analysis of lumbar interspinous process fixators," Journal of KSPE, Vol. 23, No. 3, pp. 195-202, 2006
  3. Chuang, H. C., Cho, D. Y., Chang, C. S., Lee, W. Y., Chen, J. C., Lee, H. C. and Chen, C. C., "Efficacy and safety of the use of titanium mesh cages and anterior cervical plates for interbody fusion after anterior cervical corpectomy," Surgical Eurology, Vol. 65, No. 5, pp. 464-471, 2006 https://doi.org/10.1016/j.surneu.2005.12.021
  4. Hillard, V. H. and Apfelbaum, R. I., "Surgical management of cervical myelopathy: indications and techniques for multilevel cervical discectomy," The Spine Journal, Vol. 6, No. 6, pp. 242-251, 2006 https://doi.org/10.1016/j.spinee.2005.04.013
  5. Shirai, S., Kumuthini, K., Mutoh, Y. and Nagata, K., "Fretting Fatigue Characteristics of Titanium Alloy Ti-6Al-4V in Ultra High Cycle Regime," ASTM Special Technical Publication, Vol. 1425, pp. 353-368, 2003.
  6. ASTM International, "Medical and Surgical Materials and Devices," Annual Book of ASTM Standard, Vol. 03.01, 2002
  7. ASTM International, "Standard Specification for Wrought Titanium-6Aluminum-4Vanadium ELI (Extra Low Interstitial) Alloy for Surgical Implant Applications (UNS R56401)1," ASTM, F 136-02a, pp. 1-4, 2002
  8. ASTM International, "Spinal Devices," Annual Book of ASTM Standard, Vol. 08.01, 2002
  9. ASTM International, "Standard Test Methods for Spinal Implant Constructs in a Vertebrectomy Model1," ASTM, F 1717-01, pp. 1-16, 2002