Observations of pressures within normal discs in the lumbar spine

As a result of performing pressure standardised lumbar discography, in vivo pressure measurements within lumbar discs have been recorded. Our results support the theory that for normal discs, the internal pressure within the nucleus pulposus increases when the subject changes from lying prone to sta...

Full description

Saved in:
Bibliographic Details
Published in:Spine (Philadelphia, Pa. 1976) Pa. 1976), 1983-03, Vol.8 (2), p.166-169
Main Authors: Quinnell, R C, Stockdale, H R, Willis, D S
Format: Article
Language:English
Subjects:
Biomechanical Phenomena
Humans
Hydrostatic Pressure
Intervertebral Disc - diagnostic imaging
Intervertebral Disc - physiology
Lumbar Vertebrae - diagnostic imaging
Lumbar Vertebrae - physiology
Movement
Posture
Radiography
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:As a result of performing pressure standardised lumbar discography, in vivo pressure measurements within lumbar discs have been recorded. Our results support the theory that for normal discs, the internal pressure within the nucleus pulposus increases when the subject changes from lying prone to standing and thence to sitting. However, when comparing our results with other published data, we consistently show a reduction in the absolute values recorded. We discuss the possible reasons for this discrepancy. Arguments have been advanced in the literature both for and against the nucleus in a normal disc behaving hydrostatically. An hypothesis which occupies the middle ground between these two concepts is proposed which could well be consistent with all the published data including our own.
ISSN:0362-2436
DOI:10.1097/00007632-198303000-00007