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  • Title: Spinal cord monitoring using evoked potentials recorded from feline vertebral bone.
    Author: Nordwall A, Axelgaard J, Harada Y, Valencia P, McNeal DR, Brown JC.
    Journal: Spine (Phila Pa 1976); 1979; 4(6):486-94. PubMed ID: 515839.
    Abstract:
    A new recording method for continuous spinal cord monitoring has been developed at Rancho Los Amigo Hospital. Using peripheral nerve stimulation, spinal evoked potentials (SEPs) are recorded from cancellous bone of spinous processes. This neurologically noninvasive technique provides a highly reproducible and consistent signal, unaffected by biologic noise and surgical handling of the spinal column. Moreover, the evoked response is extremely sensitive to changes in functional integrity of the spinal cord. In experimental spinal cord injuries, produced by localized distraction of the spine, changes of the evoked responses were well correlated with the change in spinal cord function.
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