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Spine J. 2015 Feb 1;15(2):348-62. doi: 10.1016/j.spinee.2014.10.011. Epub 2014 Oct 13.

Epidural injections in prevention of surgery for spinal pain: systematic review and meta-analysis of randomized controlled trials.

Author information

1
Department of Anesthesiology, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA. Electronic address: mbicket@partners.org.
2
Department of Anesthesiology, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA; Department of Anesthesiology & Critical Care Medicine, Johns Hopkins School of Medicine, 1800 Orleans Street, Zayed Building Room Rm 6220, Baltimore, MD, USA 21287.
3
Department of Anesthesiology, Northwestern School of Medicine, 675 N. St, Clair Galter 17-200, Chicago, IL 60611, USA.
4
Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 550 N. Broadway, Ste 301, Baltimore, MD 21029, USA; Department of Anesthesiology, Walter Reed National Military Medical Center, 8901 Wisconsin Ave., Bethesda, MD 20889, USA.

Abstract

BACKGROUND CONTEXT:

Low back pain is debilitating and costly, especially for patients not responding to conservative therapy and requiring surgery.

PURPOSE:

Our objective was to determine whether epidural steroid injections (ESI) have a surgery-sparing effect in patients with spinal pain.

STUDY DESIGN/SETTING:

The study design was based on a systematic review and meta-analysis.

METHODS:

Databases searched included Cochrane, PubMed, and EMBASE. The primary analysis evaluated randomized controlled trials (RCTs) in which treatment groups received ESI and control groups underwent control injections. Secondary analyses involved RCTs comparing surgery with ESI, and subgroup analyses of trials comparing surgery with conservative treatment in which the operative disposition of subjects who received ESI were evaluated.

RESULTS:

Of the 26 total studies included, only those evaluating the effect of ESI on the need for surgery as a primary outcome examined the same patient cohort, providing moderate evidence that patients who received ESI were less likely to undergo surgery than those who received control treatment. For studies examining surgery as a secondary outcome, ESI demonstrated a trend to reduce the need for surgery for short-term (<1 year) outcomes (risk ratio, 0.68; 95% confidence interval, 0.41-1.13; p=.14) but not long-term (≥1 year) outcomes (0.95, 0.77-1.19, p=.68). Secondary analyses provided low-level evidence suggesting that between one-third and half of patients considering surgery who undergo ESI can avoid surgery.

CONCLUSIONS:

Epidural steroid injections may provide a small surgery-sparing effect in the short term compared with control injections and reduce the need for surgery in some patients who would otherwise proceed to surgery.

KEYWORDS:

Back pain; Epidural steroid injection; Low back pain; Meta-analysis; Radicular pain; Surgery; Systematic review

PMID:
25463400
DOI:
10.1016/j.spinee.2014.10.011
[Indexed for MEDLINE]

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