Stress-strain measurement of the spinal cord of puppies and their neurological evaluation.

An in-vivo experiment was developed to identify the biorheological properties of the spinal cord of puppies under uriaxial deformation. For strain less than 4.5%, the ratio between stress and strain was about 2.65 x 106 dyne/limbs of the puppies were recoverable after the spinal cord segment at L1 was stretched once by 10-50%.