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Advances in Orthopedics
Volume 2016, Article ID 7369409, 7 pages
Clinical Study

Flexible Stabilisation of the Degenerative Lumbar Spine Using PEEK Rods

1Service de Neurochirurgie, Clinique du Millenaire, 34000 Montpellier, France
2Service de Rééducation Fonctionnelle, Centre Hospitalier Paul Coste Floret, 34240 Lamalou les Bains, France
3Invibio Ltd., Technology Centre, Hillhouse International, Thornton Cleveleys, Lancashire FY5 4QD, UK

Received 4 November 2015; Accepted 19 January 2016

Academic Editor: Boris Zelle

Copyright © 2016 Jacques Benezech 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.


Posterior lumbar interbody fusion using cages, titanium rods, and pedicle screws is considered today as the gold standard of surgical treatment of lumbar degenerative disease and has produced satisfying long-term fusion rates. However this rigid material could change the physiological distribution of load at the instrumental and adjacent segments, a main cause of implant failure and adjacent segment disease, responsible for a high rate of further surgery in the following years. More recently, semirigid instrumentation systems using rods made of polyetheretherketone (PEEK) have been introduced. This clinical study of 21 patients focuses on the clinical and radiological outcomes of patients with lumbar degenerative disease treated with Initial VEOS PEEK®-Optima system (Innov’Spine, France) composed of rods made from PEEK-OPTIMA® polymer (Invibio Biomaterial Solutions, UK) without arthrodesis. With an average follow-up of 2 years and half, the chances of reoperation were significantly reduced (4.8%), quality of life was improved (ODI = 16%), and the adjacent disc was preserved in more than 70% of cases. Based on these results, combined with the biomechanical and clinical data already published, PEEK rods systems can be considered as a safe and effective alternative solution to rigid ones.