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Nucleus implant parameters significantly change the compressive stiffness of the human lumbar intervertebral disc
Journal article   Peer reviewed

Nucleus implant parameters significantly change the compressive stiffness of the human lumbar intervertebral disc

Abhijeet Joshi, Samir Mehta, Edward Vresilovic, Andrew Karduna and Michele Marcolongo
Journal of biomechanical engineering, v 127(3), pp 536-540
Jun 2005
PMID: 16060361

Abstract

Intervertebral Disc - physiopathology Humans Middle Aged Intervertebral Disc - surgery Prosthesis Implantation - instrumentation Elasticity Male Treatment Outcome Compressive Strength Lumbar Vertebrae - surgery Joint Prosthesis Female Intervertebral Disc Displacement - surgery Prosthesis Implantation - methods In Vitro Techniques Intervertebral Disc Displacement - physiopathology Equipment Failure Analysis Lumbar Vertebrae - physiopathology
Nucleus replacement by a synthetic material is a recent trend for treatment of lower back pain. Hydrogel nucleus implants were prepared with variations in implant modulus, height, and diameter Human lumbar intervertebral discs (IVDs) were tested in compression for intact, denucleated, and implanted condition. Implantation of nucleus implants with different material and geometric parameters into a denucleated IVD significantly altered the IVD compressive stiffness. Variations in the nucleus implant parameters significantly change the compressive stiffness of the human lumbar IVD. Implant geometrical variations were more effective than those of implant modulus variations in the range examined.

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Collaboration types
Domestic collaboration
Web of Science research areas
Biophysics
Engineering, Biomedical
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