European Spine Journal

, Volume 21, Issue 5, pp 825–828

Dural lesions in decompression for lumbar spinal stenosis: incidence, risk factors and effect on outcome

  • Fredrik Strömqvist
  • Bo Jönsson
  • Björn Strömqvist
  • Swedish Society of Spinal Surgeons
Eurospine Full Paper Award 2011

DOI: 10.1007/s00586-011-2101-2

Cite this article as:
Strömqvist, F., Jönsson, B., Strömqvist, B. et al. Eur Spine J (2012) 21: 825. doi:10.1007/s00586-011-2101-2

Abstract

Introduction

Decompression for lumbar spinal stenosis is one of the most frequent operations on the spine today. The most common complication seems to be a peroperative dural lesion. There are few prospective studies on this complication regarding incidence and effect on long-term outcome; this is the background for the current study.

Materials and methods

Swespine, the Swedish Spine Register documents the majority (>80%) of lumbar spine operations in Sweden today. Within the framework of this register, totally 3,699 operations for spinal stenosis during a 5-year period were studied regarding complications and 1-year postoperative outcome. Mean patient age was 66 (37–92) years and 44% were males. Fourteen percent were smokers and 19% had undergone previous lumbar spine surgery.

Results

The overall incidence of a peroperative dural lesion was 7.4%, 8.5% of patients undergoing decompressive surgery only and 5.5% of patients undergoing decompressive surgery + fusion (p < 0.001). A logistic regression analysis demonstrated that (high) age (p < 0.0004), previous surgery (p < 0.036) and smoking (p < 0.049) were significantly predictive factors for dural lesions. An odds ratio estimate demonstrated an age-related risk increase with 2.7% per year. The risk for dural lesions also increased with number of levels decompressed. The 1-year outcome was identical in the two groups with and without a dural lesion.

Conclusion

A dural lesion was seen in 7.4% of decompressive operations for spinal stenosis. High age, previous surgery and smoking were risk factors for sustaining a lesion, which, however, did not affect the 1-year outcome negatively.

Keywords

Spinal stenosis Complication Surgery Outcome 

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Fredrik Strömqvist
    • 1
  • Bo Jönsson
    • 1
  • Björn Strömqvist
    • 1
  • Swedish Society of Spinal Surgeons
  1. 1.Swedish Society of Spinal Surgeons, Department of Orthopedics, Clinical Sciences LundLund University Hospital, Lund UniversityLundSweden

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