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[Intradiscal pressure forces on cervical intervertebral discs in physiologic and pathologic conditions. In vitro
J Pospiech1, H J Wilke, L E Claes
1Neurochirurgische Universitätsklinik, Essen.
Langenbecks Archiv Fur Chirurgie
|January 1, 1996
Summary
This study investigated cervical spine biomechanics, finding that muscle forces increase intradiscal pressure. Ventral cervical fusion significantly impacts pressure in adjacent segments, potentially accelerating degeneration.
Area of Science:
- Biomedical Engineering
- Orthopedic Surgery
- Spinal Biomechanics
Context:
- Intradiscal pressure research has primarily focused on the lumbar spine.
- Degenerative disc disease and external loads affect lumbar intradiscal pressure.
- The relevance of these factors for cervical discs remains less understood.
Purpose:
- To investigate intradiscal pressure in human cervical spine specimens.
- To assess the biomechanical effects of muscle force simulation and ventral cervical fusion on cervical intradiscal pressure.
Summary:
- In vitro biomechanical testing of human cervical spine specimens was performed.
- Intradiscal pressure was recorded in two cervical discs under various conditions.
- Muscle force simulation significantly increased intradiscal pressure.
- Ventral cervical fusion demonstrated a significant impact on intradiscal pressure in adjacent segments.
Impact:
- Confirms in vivo intradiscal pressure findings in the cervical spine.
- Enhances understanding of cervical spine biomechanics.
- Provides insights into accelerated degeneration adjacent to ventral cervical fusion sites.