Skip Navigation LinksHome > July 01, 2014 - Volume 39 - Issue 15 > Special Note: Preliminary Findings—Epidural Steroid Paste i...
Spine:
doi: 10.1097/BRS.0000000000000379
Preliminary Report

Special Note: Preliminary Findings—Epidural Steroid Paste in Posterior Lumbar Surgery: Surgical Site Complications in a Case-Controlled Cohort

Asomugha, Eva Umoh MD*; McLain, Robert F. MD

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Abstract

Study Design. Retrospective cohort analysis of consecutive, case-matched patients.

Objective. To determine the risk of acute postoperative complications in patients receiving epidural steroid paste.

Summary of Background Data. Epidural steroid agents reduce postoperative pain and inflammation after lumbar surgery, reducing postoperative narcotic use and improving McGill pain scores. Small studies have suggested an increase in surgical site infections after use of steroid-containing pain-paste. However, no larger study exists to address this concern.

Methods. A total of 364 patients undergoing lumbar decompression by surgeons routinely or never using an analgesic steroid paste were reviewed. A total of 123 patients met specific inclusion criteria: 61 steroid-paste (StP) group, 62 in no-paste (NoP) group. Surgical procedures were laminectomy/laminotomy at 1 to 2 adjacent levels. Patients undergoing instrumentation or revision surgery were excluded. Surgical and postoperative protocols were uniform. Retrospective review of clinical data assessed the incidence of postoperative surgical site complications.

Results. Patient demographics, characteristics, and perioperative protocols were similar. Only in-patient admission differed—75% in the steroid-paste (StP) group versus 45% in the no-paste (NoP) group (P < 0.0001). There were 5 acute infections, 4 in the StP (6.7% [1.8%–15.9%]) and 1 in the NoP groups (1.67% [0.03%–8.7%]), P = 0.21. One additional StP patient had delayed wound healing. All StP group infections/complications occurred in patients with identifiable comorbid risk factors.

Conclusion. The observed 4-fold increase in wound complications in the StP group is concerning, although the difference in infection rates was not significant. Stratifying patients by identifiable risk factors could account for some of this difference. The benefits of an epidural agent may outweigh the small risk of surgical site complications in most patients, but we recommend caution when treating patients with identifiable risk factors. A larger study is in progress.

Level of Evidence: 3

© 2014 by Lippincott Williams & Wilkins

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