Infinite models in scoliosis: a review of the literature and analysis of personal experience

Biomedizinische Technik. Biomedical Engineering
Wen-Zhong NieZhen-Yu Wang

Abstract

The purpose of this study was to introduce infinite models in scoliosis and to analyze personal experience. Based on a three-dimensional patient-specific finite element model of the spine, rib cage, pelvis and abdomen, a parametric individual model of a thoracolumbosacral orthosis was built. Three standard strap tensions (20, 40, 60 N) were loaded on the back of the brace to simulate the strap tension. The I-Scan distribution pressure measurement system was used to measure the pressure of the different regions and the equivalent forces in these regions were calculated. The spinal curve changes and the forces acted on the brace generated by the strap tension were evaluated and compared with the measurement results. The reduction of the coronal curvature was approximately 60% for a strap tension of 60 N. The sacral slope and the lordosis were partially reduced in this case. The brace modified the axial rotation at the deformed vertebrae. The forces generated in finite element analysis were in good agreement with the measurement. The findings supported the feasibility of such an approach to analyze individual bracing biomechanics, which may be useful in the design of more effective individual braces.

References

Jan 1, 1979·Journal of Biomechanics·S T TakashimaA B Schultz
Jan 1, 1977·Journal of Biomechanics·S H Sundaram, C C Feng
Jan 1, 1976·Journal of Biomechanics·H C Wu, R F Yao
Jan 1, 1991·Journal of Biomechanics·G T Wynarsky, A B Schultz
Apr 1, 1996·The Journal of Bone and Joint Surgery. American Volume·K J NoonanL A Dolan
Jul 25, 2000·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·D GignacH Labelle
Mar 29, 2001·Clinical Biomechanics·T ZanderG Bergmann
Sep 21, 2001·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·A RohlmannH J Wilke
Aug 24, 2002·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·J A A M van den HoutA van Ooy
Sep 5, 2003·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Anne PolikeitTracy E Orr
Feb 18, 2004·Clinical Biomechanics·Delphine PériéJ Dansereau
Mar 21, 2007·Medical & Biological Engineering & Computing·Julien ClinHubert Labelle

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Citations

Dec 4, 2009·Briefings in Bioinformatics·Maxwell Lewis Neal, Roy Kerckhoffs
Jan 6, 2016·International Orthopaedics·Eric BerthonnaudJoannes Dimnet
Feb 27, 2018·Prosthetics and Orthotics International·Simon Sw Li, Daniel Hk Chow
Dec 10, 2020·Computer Methods in Biomechanics and Biomedical Engineering·Claudio VergariWafa Skalli
Jan 14, 2010·Current Opinion in Pediatrics

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