Biomechanical and Neurological Response of the Spinal Cord of a Puppy to Uniaxial Tension

[+] Author and Article Information
Tin-Kan Hung, Guan-Liang Chang

Departments of Civil Engineering and Neurosurgery, University of Pittsburgh, Pittsburgh, PA 15261

J Biomech Eng 103(1), 43-47 (Feb 01, 1981) (5 pages) doi:10.1115/1.3138244 History: Received April 28, 1980; Revised October 29, 1980; Online June 15, 2009


An in-vivo experimental method was developed to measure the stress-strain relationship of a spinal cord segment of anesthetized puppies. A pseudo Young’s modulus was defined for the linear region followed by a nonlinear rheological behavior for finite strain. Both the sensory response and motor function of the puppies were fully recovered within 5 days after the spinal cord segment in the first lumbar region was elongated once by 50 percent or less. The usefulness of the in-vivo experiments was further elaborated by demonstrating the large artifacts that could be associated in an in-vitro experiment.

Copyright © 1981 by ASME
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