Browse > Article
http://dx.doi.org/10.3795/KSME-B.2012.36.11.1099

Mechanical Evaluation of Posterior Dynamic Omega-wire Stabilization System  

Lee, Yeon-Soo (Dept. of Biomedical Engineering, Catholic Univ. of Daegu)
Song, Geun-Soo (Dept. of Biomedical Engineering, Catholic Univ. of Daegu)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.36, no.11, 2012 , pp. 1099-1104 More about this Journal
Abstract
The study investigates the mechanical deformation of a newly developed screwless omega-wire dynamic system for stabilization of the spine. The omega-wire spring stabilization system was tested under tension, compression, and dynamic compressive fatigue loads. In addition, its bending deformation was compared to that of a spiral-wire spring system using FEA. A model whose hanger inter-center distance is 60 mm showed an ultimate tensile stress of 3981.7 N at a displacement of 3.61 mm and an ultimate compressive load of 535.6 N at a displacement of 2.16 mm. Under fatigue loading of 5 Hz with 10 N/1 N, it did not show any failure over 5 million cycles, and the displacement was restricted to 8-9 mm. In the FEA, the omega-wire spring system showed more flexible bending features than did the spiral-wire spring system.
Keywords
Posterior Spinous Process; Omega-Wire Spring; Dynamic Stabilization System;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 Lee, C. K., 1988, "Accelerated Degeneration of the Segment Adjacent to a Lumbar Fusion," Spine, Vol. 13, No. 3, pp. 375-377.   DOI   ScienceOn
2 Lemann, T. R., Spratt, K F., Tozzi, J. E., Weinstein, J. N., Reinarz, S. J., el-Khoury, G. Y. and Colby, H., 1987, "Long-Term Follow-up of Lower Lumbar Fusion Patients," Spine, Vol. 12, No 2, pp. 97-104.   DOI   ScienceOn
3 Roh, J. H., 2010, "Thermomechanical Characteristrics of SMAs with Strain-Rate Dependence," KSAS J., Vol. 38, No. 2, pp. 129-134.
4 Lee, J. D., Cheong, S. H., Choi, S. D., Kim, H. M., 2006, "Effect of $\gamma$-Ray Irradiation on Mechanical Properties of Ultra-High Molecular Weight Polyethylene," Transactions of the Korean Society of Machine Tool Engineers, Vol. 17, No. 3, pp. 108-114.   과학기술학회마을
5 Kang, K. T., Chun, H. J., Son. J. H., Kim, H. J., Moon, S. H., Lee, H. M. and Kim, K. Y., 2009, "The Comparison of Biomechanical Changes Between Spinous Process Osteotomy and Conventional Laminectomy," Trans. of the KSME (A), Vol. 33, No. 7, pp. 645-651.   과학기술학회마을   DOI   ScienceOn
6 Park, J. H., Heo, S., Son, K., Lee, S. J., 2006, "Biomechanical Analysis of Lumbar Interspinous Process Fixators and Design of Miniaturization and Advanced Flexibility," Trans. of the KSME (A), Vol. 30, No. 12, pp. 1509-1517.   과학기술학회마을   DOI   ScienceOn
7 Kim, J. W., Jeong, J. H., Park, Y. S., Lee, K. C. and Lee, Y. B., 2006, "Surgical Considerations in Posterior Stabilization of the Cervicothoracic Junction," Dongguk Journal of Med., Vol. 13, No. 2, pp. 43-51.
8 Kumar, M. N., Baklanov, A. and Chopin, D., 2001, "Correlation Between Sagittal Plane Changes and Adjacent Segment Degeneration Following Lumbar Spine Fusion," Eur. Spine J., Vol. 10, No. 4, pp. 314-319.   DOI   ScienceOn
9 Kim, S. M., I. C. Y. and Kang, H. C., 2010, "A Study of Bio-mechanical Simulation Model for Spinal Fusion using Spinal Fixation System," KSPE J., Vol. 27, No. 2, pp. 137-144.
10 Kim, Y. H., Park, W. M., Kim, K., Park, H. K., Joo, J. W. and Park, K. W., 2006, "Biomechanical Evaluation of SMA Dynamic Stabilization for Spinal Fusion," 2006 KSPE spring Conference, Gyong-ju J., Vol. 2006, No. 5, pp. 517-518.