About the Authors

Michael G. Fehlings

michael.fehlings@uhn.on.ca

Affiliation Divisions of Neurosurgery and Orthopedic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada

Alexander Vaccaro

Affiliation Division of Spinal Disorders, Department of Neurosurgery and Orthopedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, United States of America

Jefferson R. Wilson

Affiliation Divisions of Neurosurgery and Orthopedic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada

Anoushka Singh

Affiliation Divisions of Neurosurgery and Orthopedic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada

David W. Cadotte

Affiliation Divisions of Neurosurgery and Orthopedic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada

James S. Harrop

Affiliation Division of Spinal Disorders, Department of Neurosurgery and Orthopedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, United States of America

Bizhan Aarabi

Affiliation Department of Neurosurgery, University of Maryland, Baltimore, Maryland, United States of America

Christopher Shaffrey

Affiliation Departments of Neurosurgery and Orthopedic Surgery, University of Virginia, Charlottesville, Virginia, United States of America

Marcel Dvorak

Affiliation Department of Orthopedic Surgery, University of British Columbia, Vancouver, British Columbia, Canada

Charles Fisher

Affiliation Department of Orthopedic Surgery, University of British Columbia, Vancouver, British Columbia, Canada

Paul Arnold

Affiliation Department of Neurosurgery, University of Kansas, Kansas City, Kansas, United States of America

Eric M. Massicotte

Affiliation Divisions of Neurosurgery and Orthopedic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada

Stephen Lewis

Affiliation Divisions of Neurosurgery and Orthopedic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada

Raja Rampersaud

Affiliation Divisions of Neurosurgery and Orthopedic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada

Competing Interests

No direct funding was received by the authors from Medtronic Inc and there are no financial ties between authors and the company. The logistics of the study were supported by PhDx through an unrestricted grant to the Spine Trauma Study Group by Medtronic Inc. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MGF AV JRW AS DWC JSH BA CS MD CF PA EMM SL RR. Performed the experiments: MGF AV JRW AS DWC JSH BA CS MD CF PA EMM SL RR. Analyzed the data: MGF JRW. Wrote the paper: MGF JRW.