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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 29, 2026

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

Tissue engineering for intervertebral disk degeneration.

Victor Y L Leung1, Vivian Tam, Danny Chan

  • 1Department of Orthopaedics & Traumatology, The University of Hong Kong, Hong Kong SAR, China.

The Orthopedic Clinics of North America
|September 28, 2011
PubMed
Summary
This summary is machine-generated.

Intervertebral disk bioengineering faces challenges due to complexity and stress. Advances in understanding disk properties and engineering techniques offer promise for treating degeneration and restoring spine function.

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Last Updated: May 29, 2026

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Published on: July 8, 2021

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Area of Science:

  • Biomedical Engineering
  • Regenerative Medicine
  • Spine Biomechanics

Background:

  • Intervertebral disk degeneration is a significant clinical problem.
  • Current treatments often fail to restore native disk function or correct spinal kinematics.
  • The complexity and high-stress environment of the intervertebral disk present unique engineering challenges.

Purpose of the Study:

  • To review the current progress and challenges in intervertebral disk bioengineering.
  • To discuss strategies for fabricating functional intervertebral disk replacements.
  • To explore the translation of these advancements toward clinical applications.

Main Methods:

  • Review of existing literature on intervertebral disk bioengineering.
  • Analysis of current techniques in tissue engineering and biomaterials.
  • Discussion of challenges related to disk mechanics and biological integration.

Main Results:

  • Significant progress has been made in understanding intervertebral disk properties.
  • Various bioengineering approaches show promise for disk regeneration.
  • Key challenges remain in replicating native disk function and achieving long-term clinical success.

Conclusions:

  • Intervertebral disk bioengineering is advancing rapidly.
  • Further research and technological sophistication are needed for successful clinical translation.
  • Functional motion segment reconstruction holds potential for treating disk degeneration.