Vertebral end-plate changes with aging of human vertebrae

Area of Science:

• Anatomy
• Gerontology
• Histology

Background:

• Vertebral end-plates are crucial for spinal health and nutrient exchange.
• Understanding age-related changes in these structures is vital for geriatric care.

Purpose of the Study:

• To investigate sequential age-related changes in human vertebral end-plates.
• To analyze alterations in growth and articular cartilage layers throughout the lifespan.

Main Methods:

• Histological examination of human vertebral end-plates from birth to 73 years.
• Observation of cellular and vascular changes in cartilage and adjacent bone.

Main Results:

• Growth cartilage width decreases until age 16-20.
• Adult and aged end-plates feature calcified articular cartilage, resorbed and replaced by bone.
• Vascular changes in nutrient canals and calcification of articular cartilage were noted in older specimens.

Conclusions:

• Age-related calcification and vascular changes in vertebral end-plates can impede nutrient transport to intervertebral discs.
• Collagen fibers from aged end-plates extend into the disc, potentially altering disc mechanics.