Morphogenesis of the spinal canal, normal and stenotic

Area of Science:

• Developmental biology
• Neuroscience
• Orthopedics

Background:

• The axial skeleton's development is intricately linked to the growth of intraspinal nervous structures.
• Vertebroneural development involves a size decrease in embryonic nervous structures and a corresponding increase in skeletogenic tissues.

Purpose of the Study:

• To discuss the morphogenesis of normal and tight lumbar spinal canals.
• To explore the developmental interrelations between the cauda equina complex and lumbar vertebrae.

Main Methods:

• Analysis of roentgen features of vertebrae and the vertebral column.
• Review of experimental evidence on tissue development balance.
• Discussion of developmental interrelations.

Main Results:

• The nervous substance plays a crucial role in maintaining developmental balance between bony and skeletogenic tissues.
• A tight spinal canal may result from impaired neural function, leading to bony overgrowth and encroachment on neural contents.

Conclusions:

• The close developmental dependence of the axial skeleton on neural structures is evident in vertebral morphology.
• Understanding these interrelations is key to comprehending spinal canal development and abnormalities.