Biomechanical responses to open experimental spinal cord injury

T. K. Hung; M. S. Albin; T. D. Brown; L. Bunegin; R. Albin; P. J. Jannetta

Biomechanical responses to open experimental spinal cord injury

T. K. Hung, M. S. Albin, T. D. Brown, L. Bunegin, R. Albin, P. J. Jannetta

Research output: Contribution to journal › Article › peer-review

Abstract

This study evaluates the dynamic biochemical responses of the cat spinal cord during experimental impact injury. Temporal deformations of the laminectomized spinal cord were recorded by a high speed camera (1500-3000 frames/sec). The cinematograph revealed large deformations, the cord being compressed to half its posterior anterior diameter 7 msec after the onset of the impact. Peak impact force produced by a 20 gm mass falling from 15 cm height (300 GCF) averaged about 1.2 pounds, and the corresponding stress acting on the dural surface reached 42 pounds per square inch (or 2200 mm Hg). Both positive and negative pressure waves were found to be propagated in the cerebrospinal fluid.

Original language	English (US)
Pages (from-to)	271-276
Number of pages	6
Journal	Surgical Neurology
Volume	4
Issue number	2
State	Published - 1975
Externally published	Yes

ASJC Scopus subject areas

Surgery
Clinical Neurology

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abstract = "This study evaluates the dynamic biochemical responses of the cat spinal cord during experimental impact injury. Temporal deformations of the laminectomized spinal cord were recorded by a high speed camera (1500-3000 frames/sec). The cinematograph revealed large deformations, the cord being compressed to half its posterior anterior diameter 7 msec after the onset of the impact. Peak impact force produced by a 20 gm mass falling from 15 cm height (300 GCF) averaged about 1.2 pounds, and the corresponding stress acting on the dural surface reached 42 pounds per square inch (or 2200 mm Hg). Both positive and negative pressure waves were found to be propagated in the cerebrospinal fluid.",

author = "Hung, {T. K.} and Albin, {M. S.} and Brown, {T. D.} and L. Bunegin and R. Albin and Jannetta, {P. J.}",

year = "1975",

language = "English (US)",

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AU - Hung, T. K.

AU - Albin, M. S.

AU - Brown, T. D.

AU - Bunegin, L.

AU - Albin, R.

AU - Jannetta, P. J.

PY - 1975

Y1 - 1975

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AB - This study evaluates the dynamic biochemical responses of the cat spinal cord during experimental impact injury. Temporal deformations of the laminectomized spinal cord were recorded by a high speed camera (1500-3000 frames/sec). The cinematograph revealed large deformations, the cord being compressed to half its posterior anterior diameter 7 msec after the onset of the impact. Peak impact force produced by a 20 gm mass falling from 15 cm height (300 GCF) averaged about 1.2 pounds, and the corresponding stress acting on the dural surface reached 42 pounds per square inch (or 2200 mm Hg). Both positive and negative pressure waves were found to be propagated in the cerebrospinal fluid.

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JO - World Neurosurgery

JF - World Neurosurgery

SN - 1878-8750

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Biomechanical responses to open experimental spinal cord injury

Abstract

ASJC Scopus subject areas

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