Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)
- Volume 1998 Issue 11
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- Pages.155-156
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- 1998
Biomechanical analysis of pullout strength of the pedicle screws in relation to change bone mineral density
반복 하중 후 골밀도 감소에 따른 척추경 나사못의 고정력(Pullout Strength)감소 형태 분석
- Jung, D.Y. (Department of Biomedical Engineering Inje Univ.) ;
- Lee, S.J. (Department of Biomedical Engineering Inje Univ.) ;
- Kim, D.S. (Department of Orthopedic Sanggye Pack Hospital Inje Univ.) ;
- Shin, J.W. (Department of Biomedical Engineering Inje Univ.) ;
- Kim, W.J. (Seoul Spine Institute Inje Univ.) ;
- Suk, S.I. (Seoul Spine Institute Inje Univ.)
- 정덕영 (인제대학교 의용공학과) ;
- 이성재 (인제대학교 의용공학과) ;
- 김동수 (인제대학교 상계백병원 정형외과) ;
- 신정욱 (인제대학교 의용공학과) ;
- 김원중 (인제대학교 상계백병원 척추센터) ;
- 석세일 (인제대학교 상계백병원 척추센터)
- Published : 1998.11.20
Abstract
Screw loosening and subsequent pullout can be attributed to the reduction in bone mineral density in the vertebrae manifested by osteoporosis in which the decrease in fixation strength between the cancellous bone and screw threads are accelerated by repeated loads exerted by patients own weight and activities following the surgery. In this study, the change in pullout strength of the pedicle screws was investigated before and after repeated loads were imparted. For this purpose. Diapason pedicle screws
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