Pressure changes following constriction of the cauda equina. An experimental study in situ

During routine autopsies in 11 cadavers, the intact dural sac, including its nerve roots, was circumferentially constricted by a clamp while the pressure under the clamp among the nerve roots was recorded simultaneously. The first sign of a pressure increase--the critical size--occurred at a cross-s...

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Veröffentlicht in:	Spine (Philadelphia, Pa. 1976) Pa. 1976), 1988-04, Vol.13 (4), p.385-388
Hauptverfasser:	SCHONSTROM, N, HANSSON, T
Format:	Artikel
Sprache:	eng
Schlagworte:	Aged Biological and medical sciences Cadaver Cauda Equina - physiology Constriction Cranial nerves. Spinal roots. Peripheral nerves. Autonomic nervous system. Gustation. Olfaction Female Humans Male Medical sciences Nerve Compression Syndromes - physiopathology Nervous system (semeiology, syndromes) Neurology Pressure Spinal Stenosis - physiopathology
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container_title	Spine (Philadelphia, Pa. 1976)
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creator	SCHONSTROM, N HANSSON, T
description	During routine autopsies in 11 cadavers, the intact dural sac, including its nerve roots, was circumferentially constricted by a clamp while the pressure under the clamp among the nerve roots was recorded simultaneously. The first sign of a pressure increase--the critical size--occurred at a cross-sectional area of the cauda equina of 77 +/- 13 mm2. To achieve a pressure increase of 50 mm Hg, the cross-sectional area of the cauda equina had to be further constricted at an average of 19 +/- 8%. The corresponding constriction needed to achieve a pressure of 100 mm Hg was 26 +/- 8%. The results indicated that constriction of the cauda equina to a size less than 75 mm2 probably will affect the normal function of the nerve roots of the cauda.
doi_str_mv	10.1097/00007632-198804000-00001
format	Article
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The results indicated that constriction of the cauda equina to a size less than 75 mm2 probably will affect the normal function of the nerve roots of the cauda.</description><subject>Aged</subject><subject>Biological and medical sciences</subject><subject>Cadaver</subject><subject>Cauda Equina - physiology</subject><subject>Constriction</subject><subject>Cranial nerves. Spinal roots. Peripheral nerves. Autonomic nervous system. Gustation. 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source	MEDLINE; Journals@Ovid Complete
subjects	Aged Biological and medical sciences Cadaver Cauda Equina - physiology Constriction Cranial nerves. Spinal roots. Peripheral nerves. Autonomic nervous system. Gustation. Olfaction Female Humans Male Medical sciences Nerve Compression Syndromes - physiopathology Nervous system (semeiology, syndromes) Neurology Pressure Spinal Stenosis - physiopathology
title	Pressure changes following constriction of the cauda equina. An experimental study in situ
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