Observational Study
Copyright ©The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Orthop. Dec 18, 2015; 6(11): 983-990
Published online Dec 18, 2015. doi: 10.5312/wjo.v6.i11.983
Postural spinal balance defined by net intersegmental moments: Results of a biomechanical approach and experimental errors measurement
Benjamin Blondel, Elke Viehweger, Bertrand Moal, Patrick Tropiano, Jean-Luc Jouve, Virginie Lafage, Raphael Dumas, Stéphane Fuentes, Gérard Bollini, Vincent Pomero
Benjamin Blondel, Elke Viehweger, Patrick Tropiano, Jean-Luc Jouve, Stéphane Fuentes, Gérard Bollini, Laboratoire d’analyse du mouvement, Spine Unit, Université Aix-Marseille, CHU Timone, 13005 Marseille, France
Benjamin Blondel, Elke Viehweger, Jean-Luc Jouve, Vincent Pomero, Ecole Doctorale 463, Sciences du Mouvement Humain, Université Aix-Marseille, 13005 Marseille, France
Benjamin Blondel, Bertrand Moal, Virginie Lafage, Department of Spine Surgery, Hospital for Joint Diseases, New-York University, New York, NY 10002, United States
Raphael Dumas, Université de Lyon, F-69622 Lyon, France
Raphael Dumas, IFSTTAR, LBMC, F-69675 Bron, France
Raphael Dumas, Université Lyon 1, LBMC, F-69373 Lyon, France
Author contributions: Viehweger E, Jouve JL and Bollini G designed research; Blondel B, Viehweger E, Moal B, Tropiano P and Fuentes S performed research; Moal B and Lafage V contributed new reagents or analytic tools; Moal B, Lafage V and Pomero V analyzed data; Blondel B wrote the paper.
Supported by The Association pour le Développement des Recherches biologiques et Médicales and the French Society of Orthopaedics and trauma surgery (Blondel B).
Institutional review board statement: The study was reviewed and approved by the Spine Unit Institutional Review Board.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: There are no conflicts of interest to report.
Data sharing statement: No additional data are available.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Benjamin Blondel, MD, PhD, Laboratoire d’analyse du mouvement, Spine Unit, Université Aix-Marseille, avenue Jean-Moulin, CHU Timone, 13005 Marseille, France. benjamin.blondel@ap-hm.fr
Telephone: +33-4-91384430 Fax: +33-4-91384247
Received: May 29, 2015
Peer-review started: May 30, 2015
First decision: July 30, 2015
Revised: August 4, 2015
Accepted: September 29, 2015
Article in press: September 30, 2015
Published online: December 18, 2015
Core Tip

Core tip: Postural evaluation is commonly performed using full-spine radiographs. However, a biomechanical approach using a dedicated protocol is possible in order to evaluate sagittal intersegmental net moments. Results from this study confirmed the technical feasibility of the protocol. Furthermore, these results revealed postural variability over time. Such evaluation may have various clinical applications such as evaluation of an unfused segment after a spinal arthrodesis.