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http://dx.doi.org/10.5762/KAIS.2011.12.4.1775

A Development and Estimation about Flexible Rod for Flexibility of Pedicle Screw System  

Yoon, Gil-Sang (Molding & Forming Technology R&D Group, Korea Institute of Industrial Technology)
Sohn, Jong-In (Molding & Forming Technology R&D Group, Korea Institute of Industrial Technology)
Kim, Gun-Hee (Molding & Forming Technology R&D Group, Korea Institute of Industrial Technology)
Seo, Tae-Il (Division of Mechanical System Engineering, University of Incheon)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.4, 2011 , pp. 1775-1780 More about this Journal
Abstract
In this paper, it is analyzed about the mechanical characteristics of pedicle screw system which is a artificial implant for surgery to treatment serious lumbar vertebra diseases. The disk of lumbar vertebra to be fixed by pedicle screw system shows regressive phenomena. But if flexible rod, to give a flexibility(under 6 degree) to fixable disk is applied, it can protect against the degeneration of disk. This research is carried out a mechanical characteristic of pedicle screw system used flexible rod through finite elements analysis, and then flexible rod system was verified about safe movement through compression, tension and torsion test which is the pedicle screw system official recognition test(ASTM F 1717).
Keywords
Pedicle screw system; Flexible rod; Mechanical characteristic; FEM Analysis;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 안면환, 한채형, 구자웅, 정승민, 조재호, " 한국인에서 축추경 나사못 삽입에 있어서 형태학적 특성", 대한정형외과학회지, 제 42권, pp. 255-263, 2007.
2 Kumar, M. N., Baklanov, A. and Chopin, D., "Correlation between sagittal plane changes and adjacent segment degeneration following lumbar spine fusion", Eur. Spine J., Vol. 10, No. 4, pp. 314-319, 2001.   DOI
3 Lee, C. K., "Accelerated degeneration of the segment adjacent to a lumbar fusion", Spine, Vol. 13, No. 3, pp. 375-377, 1988.   DOI
4 Lehmann, T. R., Spratt, K. F., Tozzi, J. E., Weinstein, J. N., Reinarz, S. J., el-Khoury, G. Y. and Colby. H., "Long-term follow-up of lower lumbar fusion patients", Spine, Vol. 12, No. 2, pp. 97-104, 1987.   DOI
5 박원만, "가상시험 기술을 이용한 척추 임플란트의 생체역학 성능평가" 박사학위 논문, pp. 11, 2010.
6 Antonius Rohlmann, Georg Bergmann, Friedmar Graichen, "loads on internal spinal fixation device during walking", Journal of Biomechanics, Vol. 30, No.1, pp. 41-47, 1997.   DOI
7 Cedric Y. Barry, Ravi K. Ponnappan, Jason Song and Alexander R. Vaccaro, "Biomechanical Evaluation of Pedicle Screw-Based Dynamic Stabilization Devices for the Lumbar Spine: A systematic Review", SAS Journal, Vol. 02, Issue 04, pp. 159-170, 2008.   DOI
8 Michael Hahn, Roman Nassutt, Gunter Delling, Oskar Mahrenholtz, Erich Schneider, Michael Morlock, "The influence of material and design features on the mechanical properties of transpedicular spinal fixation implants", Mechanical properties of spinal implants, pp. 354-362, 2002.
9 김성민, 양인철, 강호철, "척추경 고정 나사 시스템을 이용한 척추 유합 시술의 생체역학적 분석 모델 연구", 제 27권, 2호, pp. 137-144, 2월, 2010.   과학기술학회마을
10 Ching Chi Hsu, Ching Kong Chao, Jaw Lin Wang, Sheng Mou Hou, Ying Tsung Tsai, Jinn Lin, "Increase of pullout strength of spinal pedicle screws with conical core: biomechanical test and finite element analyses", Journal of Orthopaedic Research, Vol. 23, pp. 788-794, 2005.   DOI
11 박원만, 김윤혁, "다축 척추경 나사못의 고정나사 조임토크에 따른 나사못 시스템의 정적 특성 분석", 한국정밀공학회 2009년도 추계학술대회논문집, pp.619-620, 2009.   과학기술학회마을
12 박준식, 최진화, 조명우, 최길운, "생체공학용 척추경나사의 기계적 거동 예측", 한국기계가공학회지, 제 3권, pp. 72-78, 2004.
13 김성민, 양인철, 강호철, "척추경 고정 나사 시스템을 이용한 척추 유압 시술의 생체역학적 분석 모델 연구", 한국정밀공학회지, 제 27권, pp. 137-144, 2010.
14 이순욱, 송정일, 배성인, 안면환, "척추경 나사못 고정시스템의 피로하중 영향", 대한기계학회 2000년도 춘계학술대회논문집, pp. 375-380, 2000.   과학기술학회마을
15 남기우, 장성민, 이성희, 조명우, "척추경나사의 최적 설계를 위한 유한요소해석과 형상가공에 관한 연구", 한국정밀공학회 2001년도 추계학술대회, pp. 634-638, 2001.