From the *Research Center, Sainte-Justine University Hospital Center, Montréal, Québec, Canada; †Department of Orthopaedic Surgery, Université de Montréal, Montréal, Québec, Canada; and ‡Department of Mechanical Engineering, École Polytechnique, Montréal, Québec, Canada.
Acknowledgment date: January 30, 2009. Revision date: May 4, 2009. Acceptance date: May 7, 2009.
The legal regulatory status of device(s)/drug(s) that is/are the subject of this manuscript is not applicable in the author's country.
Corporate/Industry funds were received in support of this work. One or more of the author(s) has/have received or will receive benefits for personal or professional use from a commercial party related directly or indirectly to the subject of this manuscript: e.g., honoraria, gifts, consultancies.
Supported by MENTOR, a strategic training program of the Canadian Institutes of Health Research, FREOM (fondation de recherche et d'éducation en orthopédie de Montréal) and in part by the Spinal Deformity Study Group and an educational noncommercial research grant from Medtronic Sofamor Danek.
Address correspondence and reprint requests to Hubert Labelle, MD, Division of Orthopaedics, Sainte-Justine University Hospital Center, 3175 Côte-Sainte-Catherine, Montréal, Québec, Canada H3T 1C5; E-mail: [email protected]