한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제23권3호
  • /
  • Pages.187-194
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  • 2006
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

정상 척추체 모델을 이용한 척추측만증 모델 자동 생성 프로그램 개발

Development of a Special Program for Automatic Generation of Scoliotic Spine FE Model with a Normal Spine Model

  • 유한규 (단국대학교 기계공학과 대학원) ;
  • 김영은 (단국대학교 기계공학과)
  • 발행 : 2006.03.01
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초록

Unexpected postoperative changes, such as growth in rib hump and shoulder unbalance, have been occasionally reported after corrective surgery for scoliosis. However there has been neither experimental data fer explanation of these changes, nor the suggestion of optimal correction method. Therefore, the numerical study was designed to investigate the post-operative changes of vertebral rotation and rib cage deformation after the corrective surgery of scoliosis. A mathematical finite element model of normal spine including rib cage, sternum, both clavicles, and pelvis was developed with anatomical details. In this study, we also developed a special program which could convert a normal spine model to a desired scoliotic spine model automatically. A personalized skeletal deformity of scoliosis model was reconstructed with X-ray images of a scoliosis patient from the normal spine structures and rib cage model. The geometric mapping was performed by translating and rotating the spinal column with an amount analyzed from the digitized 12 built-in coordinate axes in each vertebral image. By utilizing this program, problems generated in mapping procedure such as facet joint overlapping, vertebral body deformity could be automatically resolved.

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참고문헌

  1. Lonstein, J. E., Bradford, D. S., Winter, R. B. and Ogilvie, J. W., 'Patient evaluation In : Moe ed,' Textbook of scoliosis and other spinal deformities, 3rd ed. Philadelphia. W. B. Saunders, p. 45, 1995
  2. Andre, B., Dansereau, J. and Labelle, H., 'Effect of Radiographic Landmark identification errors on the accuracy of three-dimensional reconstruction of the human spine,' Med. & BioI. Eng. & Comput., Vol. 30, pp. 569-575, 1992 https://doi.org/10.1007/BF02446787
  3. Petit, Y., Dansereau, J., Labelle, H. and Guise, J. A., 'Estimation of 3D Location and Orientation of Human Vertebral Facet Joints from Standing Digital Radiographs,' Med. & BioI. Eng. & Comput., Vol. 36, pp. 389-394, 1998 https://doi.org/10.1007/BF02523204
  4. Taleb, A. and Gautier, L., 'On information fusion to improve segmentation of MRI sequences,' Information Fusion, Vol. 3, pp. 103-117, 2002 https://doi.org/10.1016/S1566-2535(02)00052-0
  5. Kim, Y. E., Son, C. K., Lee, K. H., Choi, H. Y. and Lee, C. K., 'Analysis of Scoliosis Correction Effects according to Instrumentation Devices using a Finite Element Model, ' J. of the KSPE, Vol. 21, No.8, pp. 157-163, 2004
  6. Kanayama, M., Tadano, S., Ukai, T. and Abumi, K., 'A Mathematical Expression of Three-Dimensional Configuration of the Scoliotic Spine,' J. Biomechanical Engineering, Vol. 118, pp. 247-252, 1996 https://doi.org/10.1115/1.2795967