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Related Concept Videos

Degenerative Disc Disease I: Introduction01:27

Degenerative Disc Disease I: Introduction

Degenerative disc disease is a chronic condition in which intervertebral discs gradually lose structure and function. It is not infectious or autoimmune; rather, it results from age-related biochemical and mechanical changes, influenced by genetic, metabolic, and environmental factors.Structure and Function of DiscsThe spine contains 23 intervertebral discs that absorb load, distribute forces, maintain spacing, and allow flexibility. Each disc consists of a nucleus pulposus, a gel-like core...
Degenerative Disc Disease ll: Pathophysiology01:23

Degenerative Disc Disease ll: Pathophysiology

The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...
Herniated Intervertebral Disc l: Introduction01:29

Herniated Intervertebral Disc l: Introduction

Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...

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Related Experiment Video

Updated: May 8, 2026

An In Vitro Organ Culture Model of the Murine Intervertebral Disc
08:03

An In Vitro Organ Culture Model of the Murine Intervertebral Disc

Published on: April 11, 2017

Modeling the nutrientsbehavior in intervertebral discs: a boundary integral simulation.

Y González1, F Nieto, M Cerrolaza

  • 1National Institute for Bioengineering, Central University of Venezuela, Caracas, Venezuela.

Molecular & Cellular Biomechanics : MCB
|September 10, 2013
PubMed
Summary
This summary is machine-generated.

This study models nutrient effects on intervertebral discs using the Boundary Element Method (BEM). The Boundary Element Method (BEM) minimizes numerical efforts and analyzes disc calcification and nutrient behavior under loading.

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A Proinflammatory, Degenerative Organ Culture Model to Simulate Early-Stage Intervertebral Disc Disease.
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Related Experiment Videos

Last Updated: May 8, 2026

An In Vitro Organ Culture Model of the Murine Intervertebral Disc
08:03

An In Vitro Organ Culture Model of the Murine Intervertebral Disc

Published on: April 11, 2017

A Proinflammatory, Degenerative Organ Culture Model to Simulate Early-Stage Intervertebral Disc Disease.
05:46

A Proinflammatory, Degenerative Organ Culture Model to Simulate Early-Stage Intervertebral Disc Disease.

Published on: February 14, 2021

Area of Science:

  • Computational Biomechanics
  • Mechanobiology
  • Biomedical Engineering

Background:

  • Intervertebral disc (IVD) degeneration is a significant health concern.
  • Nutrient transport and metabolic byproducts influence IVD health and function.
  • Previous models often require extensive computational resources.

Purpose of the Study:

  • To develop and validate a numerical model for nutrient transport in intervertebral discs.
  • To investigate the impact of nutrient (glucose, oxygen, lactate) dynamics on disc behavior.
  • To analyze the effects of disc calcification and associated vascularization loss.

Main Methods:

  • Utilized the Boundary Element Method (BEM) for numerical modeling.
  • Developed an axisymmetric model of the intervertebral disc.
  • Modeled the concentration and production of lactate and oxygen using BEM.
  • Simulated a mixed loading-unloading process to analyze component behavior.

Main Results:

  • BEM model results showed good agreement with finite element method (FEM) findings.
  • BEM significantly minimized numerical efforts in domain and boundary discretization.
  • Analyzed the influence of calcification-induced vascularization loss on nutrient transport.
  • Quantified disc-height variations resulting from nutrient degradation.

Conclusions:

  • The Boundary Element Method (BEM) offers an efficient approach for modeling nutrient transport in intervertebral discs.
  • The model successfully captures the complex interplay between nutrient dynamics, calcification, and disc degeneration.
  • Findings provide insights into the biomechanical consequences of metabolic changes in the intervertebral disc.