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BioMed Research International
Volume 2014, Article ID 839325, 7 pages
http://dx.doi.org/10.1155/2014/839325
Review Article

Biomechanics of Interspinous Devices

11st Orthopedic Division, University of Pisa, Via Paradisa 2, 56125 Pisa, Italy
2Orthopedic Division, S. Maria Maddalena Hospital, Borgo S. Lazzero, 56048 Volterra, Italy

Received 17 February 2014; Revised 11 June 2014; Accepted 16 June 2014; Published 9 July 2014

Academic Editor: Marcelo Galarza

Copyright © 2014 Paolo D. Parchi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A number of interspinous devices (ISD) have been introduced in the lumbar spine implant market. Unfortunately, the use of these devices often is not associated with real comprehension of their biomechanical role. The aim of this paper is to review the biomechanical studies about interspinous devices available in the literature to allow the reader a better comprehension of the effects of these devices on the treated segment and on the adjacent segments of the spine. For this reason, our analysis will be limited to the interspinous devices that have biomechanical studies published in the literature.