gms | German Medical Science

57th Annual Meeting of the German Society of Neurosurgery
Joint Meeting with the Japanese Neurosurgical Society

German Society of Neurosurgery (DGNC)

11 - 14 May, Essen

Treatment of spinal stenosis with coflex – an interspinous dynamic device – results of a follow-up study of 152 patients

Behandlung der Spinalkanalstenose mit Coflex, einem interspinösen, dynamischen Implantat – Ergebnisse einer follow-up-Studie von 152 Patienten

Meeting Abstract

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  • corresponding author C. Raschdorff - Abteilung Neurochirurgie, Ostseeklinik Damp
  • D. Adelt - Abteilung Neurochirurgie, Ostseeklinik Damp

Deutsche Gesellschaft für Neurochirurgie. Japanische Gesellschaft für Neurochirurgie. 57. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie e.V. (DGNC), Joint Meeting mit der Japanischen Gesellschaft für Neurochirurgie. Essen, 11.-14.05.2006. Düsseldorf, Köln: German Medical Science; 2006. DocP 12.188

The electronic version of this article is the complete one and can be found online at:

Published: May 8, 2006

© 2006 Raschdorff et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( You are free: to Share – to copy, distribute and transmit the work, provided the original author and source are credited.



Objective: The follow-up-study was part of a data-collection of multiple sites internationally for an IDE - study in the United States to determine the safety and efficacy of the implant.

Methods: From February 2002 to November 2004 240 patients were treated at our hospital with the Coflex interspinous device. 200 patients were evaluated (83%). The main indication for the device was in 152 patients spinal stenosis (76%).

Results: Data evaluation shows in 86% an improvement of severe low back pain leading to an significant improvement of their walking distance. 83% of patients had a walking distance preoperative <1000 m, 88% of patients postoperative >1000 m. We found a high rate of patient satisfaction: 91% satisfied or very satisfied, 93% would have surgery again. 6 complications have been reported of which 4 complications lead to an implant removal (2%).

Conclusions: Coflex allows for dynamic stabilisation after neural decompression significantly reducing back pain without fusion. The treatment of spinal canal stenosis with Coflex is save and effective.