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BJA Advance Access published online on February 4, 2005
British Journal of Anaesthesia, doi:10.1093/bja/aei084
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© The Board of Management and Trustees of the British Journal of Anaesthesia 2005. All rights reserved. For Permissions, please e-mail: journal.permissions@oupjournals.org
Accepted December 8, 2004

Clinical Investigation

Comparison of caudal steroid epidural with targeted steroid placement during spinal endoscopy for chronic sciatica: a prospective, randomized, double-blind trial

A. K. Dashfield 1*, M. B. Taylor 1, J. S. Cleaver 1, and D. Farrow 1

1 Eric Angel Pain Management Centre, Level 07, Derriford Hospital, Plymouth PL6 8DH, UK

* To whom correspondence should be addressed.
A. K. Dashfield, E-mail: adrian.dashfield{at}phnt.swest.nhs.uk


  Abstract

Background. Chronic sciatica can be managed by caudal steroid epidural or by targeted steroid placement during spinal endoscopy. Spinal endoscopy is a new unproven procedure. We aimed to compare the two pain management techniques and to investigate whether the site of steroid placement within the epidural space was significant.

Methods. We randomized 60 patients with a 6-18 months history of sciatica to either targeted epidural local anaesthetic and steroid placement with a spinal endoscope or caudal epidural local anaesthetic and steroid treatment. Pre-treatment and 6-week, 3-month, and 6-month SF-MPQ and HAD scores were recorded.

Results. No significant differences were found between the groups for any of the measures at any time. However, there were significant differences within both groups compared with pre-treatment values. For the caudal group, significant improvements were found for descriptive pain at 6 months (P=0.031), VAS at 6 weeks (P=0.036), 3 months (P=0.026), and 6 months (P=0.003), present pain intensity (PPI) at 3 months (P=0.013) and 6 months (P=0.01); anxiety at 6 weeks (P=0.008), 3 months (P=0.004), and 6 months (P=0.001) and depression at 6 months only (P=0.037). For the epiduroscopy group there were fewer significant changes. PPI was significantly reduced at 6 weeks (P=0.004) and at 6 months (P=0.02). Anxiety was reduced at 6 months only (P=0.03).

Conclusion. The targeted placement of epidural steroid onto the affected nerve root causing sciatica does not significantly reduce pain intensity and anxiety and depression compared with untargeted caudal epidural steroid injection. When analysed individually, both techniques benefited patients.

Keywords: anaesthetic techniques, epiduroscopy; complications, sciatica; treatment.
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