Intraoperative Neurophysiological Monitoring in Spine Deformity Surgery

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Although the incidence of neurologic injury in deformity surgery is low, the repercussions are devastating; therefore, every measure available should be adopted to minimize that risk. Advances in instrumentation have been paralleled by the development and improved understanding of intraoperative neurophysiological monitoring which enables lower morbidity in increasingly complex surgeries. Currently, multimodality intraoperative neurophysiological monitoring includes somatosensory-evoked potentials, transcranial motor–evoked potentials, triggered electromyographic stimulation, and mixed neurogenic evoked potentials. The combination of these monitoring modalities provides the greatest sensitivity in detecting impending neurologic compromise during deformity surgery.






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Hwang, SW, NR Malhotra, CI Shaffrey and AF Samdani (2012). Intraoperative Neurophysiological Monitoring in Spine Deformity Surgery. Spine Deformity, 1(1). pp. 64–70. 10.1016/j.jspd.2012.05.006 Retrieved from

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Christopher Ignatius Shaffrey

Professor of Orthopaedic Surgery

I have more than 25 years of experience treating patients of all ages with spinal disorders. I have had an interest in the management of spinal disorders since starting my medical education. I performed residencies in both orthopaedic surgery and neurosurgery to gain a comprehensive understanding of the entire range of spinal disorders. My goal has been to find innovative ways to manage the range of spinal conditions, straightforward to complex. I have a focus on managing patients with complex spinal disorders. My patient evaluation and management philosophy is to provide engaged, compassionate care that focuses on providing the simplest and least aggressive treatment option for a particular condition. In many cases, non-operative treatment options exist to improve a patient’s symptoms. I have been actively engaged in clinical research to find the best ways to manage spinal disorders in order to achieve better results with fewer complications.

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