J Neurol Surg A Cent Eur Neurosurg 2013; 74(04): 216-221
DOI: 10.1055/s-0032-1304809
Original Article
Georg Thieme Verlag KG Stuttgart · New York

Cerebrospinal Fluid Leaks after Planned Intradural Spine Surgery: a Single-Center Analysis of 91 Cases

Nicolas Olmo Koechlin
1   Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland
*   These authors contributed equally
Jan-Karl Burkhardt
1   Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland
*   These authors contributed equally
Moritz Scherer
2   Department of Neurosurgery, University Hospital Heidelberg, Heidelberg, Germany
Niklaus Krayenbühl
1   Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland
Johannes Sarnthein
1   Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland
René-Ludwig Bernays
1   Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland
Oliver Bozinov
1   Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland
› Author Affiliations
Further Information

Publication History

29 June 2011

06 December 2011

Publication Date:
01 August 2012 (online)


Background and Study Object A leak-proof dura closure after elective surgery for intradural spinal lesions is important to achieve an uncomplicated postoperative course. Because many different closure techniques and dura substitutes exist, we tried to identify the superior material and technique to avoid cerebrospinal fluid leaks (CSFLs).

Patients and Methods Between 2004 and 2009, 91 patients underwent surgical treatment of intradural spinal pathologies with primary dura closure with or without the use of dura substitutes at our institution. Pre- and postoperative images and the clinical course were analyzed retrospectively with respect to the occurrence of CSFL.

Results In 34% of the 91 patients, radiological signs of CSFL were observed. A total of 12 patients (13%) were symptomatic for CSFL and required a single puncture, lumbar drain, or surgical revision. No significant relation between CSFL and patient characteristics, underlying diagnosis, localization, or extension was noted. In contrast, the incidence of CSFL was significantly increased if more than one substitute for dura closure was used. The results showed that 41.7% of these patients showed radiological signs of CSFL as compared with 10.4% of patients in which only a single material was used.

Conclusion In our study, none of the applied products appeared to be superior to the others. Surgery with the combined use of multiple dura closure substitutes was associated with the enhanced incidence of postoperative CSFL. However, our findings concerning the various dura sealants could not be used to compare those different materials, due to the great variety of combinations of dura sealants and the retrospective analysis of the data.

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