A mechanical model of human spinal motion segments

Biomedizinische Technik. Biomedical Engineering
H J WilkeLutz Claes

Abstract

A modular mechanical model of the spine was developed which can be adapted to approximate the mechanical properties of various spinal levels and pathologic conditions in single- or multi-segmental forms. The characteristics of the model were compared with those of human L4-5 specimens in flexion and extension, axial rotation and lateral bending. The model showed comparable ranges of motion to those of human specimens in all directions and likewise was characterized by increasing stiffness with increasing load as well as hysteresis. This model can be used as a standard for the comparison of different spine testers. As a substitute for cadaveric specimens in implant testing, these models provide the advantages of availability, consistent properties, and adaptability, and avoid the risks associated with handling human tissue.

References

Nov 1, 1994·Journal of Biomechanics·V K GoelJ N Weinstein
Jan 1, 1994·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·H J WilkeS Wolf
Dec 1, 1993·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·T P GreenP Dolan

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Citations

Dec 1, 2014·Journal of Experimental Orthopaedics·Tian WangWilliam R Walsh
Dec 18, 2015·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Luigi La BarberaTomaso Villa
Dec 19, 2015·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Luigi La Barbera, Tomaso Villa
Aug 7, 2003·Journal of Spinal Disorders & Techniques·W SchmoelzH J Wilke
Feb 11, 2011·Biomedizinische Technik. Biomedical Engineering·Frank HartmannPol Maria Rommens

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