Annulus fibrosus and adjacent vertebral bone

The annulus fibrosus and adjacent vertebral bone constitute a critical functional unit of the spine, responsible for maintaining structural integrity and facilitating movement. The annulus fibrosus is a fibrocartilaginous ring that encases the nucleus pulposus, while the adjacent vertebral bone and its cartilaginous endplates provide the mechanical foundation and nutrient pathways for the disc (StatPearls: Anatomy, Back, Intervertebral Discs). Pathological changes in these structures, including annular tears and endplate microfractures, are strongly associated with degenerative disc disease and chronic discogenic low back pain (PubMed: PMCID PMC4932820). While this anatomical region is not a single molecular target, it is the primary site for various therapeutic strategies, including the localized injection of anti-inflammatory biologics or regenerative stem cell therapies (PubMed: PMCID PMC3489239). Consequently, it is a focal point for orthopedic and rheumatological research aimed at restoring spinal biomechanics and reducing inflammation. Understanding the complex biomechanical and biochemical environment of this interface is essential for developing treatments for degenerative disc disease.

Other names

Intervertebral discVertebral endplateSpinal motion segmentDisc-vertebra interface

Not applicable as this is an anatomical structure rather than a molecular target.