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Research

OUTCOME FROM EPIDURAL INJECTION AS A PREDICTOR FOR SUCCESS FROM SURGICAL INTERVENTION IN THE TREATMENT OF LUMBAR SPINAL STENOSIS

The Society for Back Pain Research (SBPR) Annual General Meeting 2012



Abstract

Background

Epidural steroid injections can provide temporary relief of symptoms in the treatment of lumbar spinal stenosis. Surgery is indicated when conservative measures fail. We hypothesise that patients who gain temporary relief of symptoms from the administration of epidural steroid injections are more likely to result in an improvement in symptoms following surgical intervention compared to patients who do not respond to injection therapy.

Method

The records of patients who had received both an epidural injection and surgical intervention for lumbar spinal stenosis between July 2008 and July 2010 were identified and retrospectively reviewed. Relief of symptoms following epidural injection was noted at 6 weeks post procedure and the patients symptoms following surgical intervention was noted and classified according to MacNab's criteria at 3 months post-surgery.

Results

60 patients who received both an epidural injection and surgical intervention for lumbar spinal stenosis were identified. 76% of patients who gained relief of symptoms from epidural injection scored good or excellent according to MacNab's criteria following surgery (n=34). Only 30% of patients who did not respond to injection therapy scored good or excellent according to MacNab's criteria following surgical intervention (n=5).

Conclusion

Patients who gained temporary relief of symptoms from epidural injection were more likely to benefit from surgical intervention in the treatment for lumbar spinal stenosis.

No conflicts of interest

No funding obtained

We confirm that this abstract has not been previously published in whole or substantial part nor has it been presented previously at a national meeting.