Mechanical and neurological response of cat spinal cord under static loading

Tin Kan Hung, Hsin Sun Lin, Leonid Bunegin, Maurice S. Albin

Research output: Contribution to journalArticle

38 Scopus citations

Abstract

The force/deformation relationship of the exposed spinal cord of cats was studied when the force was gradually applied posteriorly at T10. A linear elastic behavior was identified for deformation less than 0.5 mm, but it was not observed when the static force was no longer supported by the dural sheath. Nonlinear force/deformation relationships were observed for larger deformation, along with a strong hysteresis during a cycle of compression and decompression. The mechanical behavior remained practically the same in a repeated loading if the deformation was less than 2 mm. The motor function of cats did not recover after the cord had been compressed to 4 mm. The associated static force was about 15% of the dynamic force producing the same deformation.

Original languageEnglish (US)
Pages (from-to)213-217
Number of pages5
JournalSurgical Neurology
Volume17
Issue number3
DOIs
StatePublished - Mar 1982
Externally publishedYes

Keywords

  • compression
  • deformation
  • elastic behavior
  • hysteresis
  • spinal cord
  • trauma

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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