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common cephalic root. A left atrial catheter was placed for the injection of microspheres for spinal cord blood flow measurement. A fogarty arterial embolectomy balloon catheter was inflated directly onto the spinal cord to create crush injury. The fiber optic probe was placed via percutaneous (16-G Touhy needle) & open (laminectomy) approaches. Spinal cord blood flow and oxygenation responses to pharmacologic interventions (phenylephrine and nitroprusside) and aortic occlusion were measured at multiple levels. Results Data from this and previous experiments

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, Gloria Lin , PhD , and William R. Taylor , MD 3 2017 42 3 Peripheral Nerve A9 A9 Copyright held by the American Association of Neurological Surgeons. You may not sell, republish, or systematically distribute any published materials without written permission from JNSPG. 2017 Introduction: Prior histopathologic studies have demonstrated that injection of Polymethyl-Methacrylate-Microspheres (PMMA) into injured inter-vertebral discs may curtail the degenerative and inflammatory processes. The purpose of this study is to