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The effect of nucleus implant modulus on the mechanical behavior of lumbar functional spinal unit: A finite element study
Conference proceeding

The effect of nucleus implant modulus on the mechanical behavior of lumbar functional spinal unit: A finite element study

A Joshi, A Karduna and M Marcolongo
PROCEEDINGS OF THE IEEE 29TH ANNUAL NORTHEAST BIOENGINEERING CONFERENCE, v 2003-
01 Jan 2003

Abstract

Computer Science Computer Science, Artificial Intelligence Engineering Engineering, Biomedical Instruments & Instrumentation Life Sciences & Biomedicine Radiology, Nuclear Medicine & Medical Imaging Science & Technology Technology
Low back pain is one of the most expensive health care issues today. Origin of the low back pain is often the degenerated lumbar intervertebral disc. Current treatment options include discectomy and/or spinal fusion, both of which relieve pain, but are ineffective in terms of restoring the normal biomechanics of the spine to a normal physiological state. We are investing replacing the nucleus pulposus of the intervertebral disc with polymeric hydrogel implant. The present study reports a validated axisymmetric finite element model of the lumbar functional spinal unit to determine the material properties of the hydrogel implant as a substitute for nucleus pulposus. Effect of hydrogel implant moduli on the mechanical behavior of the lumbar functional spinal unit is observed. Variation of intradiscal pressure with hydrogel implant moduli is predicted. The finite element model gives the range of hydrogel implant modulus as a replacement for degenerated nucleus pulposus.

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#3 Good Health and Well-Being

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Web of Science research areas
Computer Science, Artificial Intelligence
Engineering, Biomedical
Instruments & Instrumentation
Radiology, Nuclear Medicine & Medical Imaging
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