Clinical Orthopaedics and Related Research®

, Volume 473, Issue 6, pp 1940–1956 | Cite as

Do Epidural Injections Provide Short- and Long-term Relief for Lumbar Disc Herniation? A Systematic Review

  • Laxmaiah Manchikanti
  • Ramsin M. Benyamin
  • Frank J. E. Falco
  • Alan D. Kaye
  • Joshua A. Hirsch
Symposium: Current Approaches to the Management of Lumbar Disc Herniation

Abstract

Background

As part of a comprehensive nonsurgical approach, epidural injections often are used in the management of lumbar disc herniation. Recent guidelines and systematic reviews have reached different conclusions about the efficacy of epidural injections in managing lumbar disc herniation.

Questions/purposes

In this systematic review, we determined the efficacy (pain relief and functional improvement) of the three anatomic approaches (caudal, lumbar interlaminar, and transforaminal) for epidural injections in the treatment of disc herniation.

Methods

We performed a literature search from 1966 to June 2013 in PubMed, Cochrane library, US National Guideline Clearinghouse, previous systematic reviews, and cross-references for trials studying all types of epidural injections in managing chronic or chronic and subacute lumbar disc herniation. We wanted only randomized controlled trials (RCTs) (either placebo or active controlled) to be included in our analysis, and 66 studies found in our search fulfilled these criteria. We then assessed the methodologic quality of these 66 studies using the Cochrane review criteria for RCTs. Thirty-nine studies were excluded, leaving 23 RCTs of high and moderate methodologic quality for analysis. Evidence for the efficacy of all three approaches for epidural injection under fluoroscopy was strong for short-term (< 6 months) and moderate for long-term (≥ 6 months) based on the Cochrane rating system with five levels of evidence (best evidence synthesis), with strong evidence denoting consistent findings among multiple high-quality RCTs and moderate evidence denoting consistent findings among multiple low-quality RCTs or one high-quality RCT. The primary outcome measure was pain relief, defined as at least 50% improvement in pain or 3-point improvement in pain scores in at least 50% of the patients. The secondary outcome measure was functional improvement, defined as 50% reduction in disability or 30% reduction in the disability scores.

Results

Based on strong evidence for short-term efficacy from multiple high-quality trials and moderate evidence for long-term efficacy from at least one high quality trial, we found that fluoroscopic caudal, lumbar interlaminar, and transforaminal epidural injections were efficacious at managing lumbar disc herniation in terms of pain relief and functional improvement.

Conclusions

The available evidence suggests that epidural injections performed under fluoroscopy by trained physicians offer improvement in pain and function in well-selected patients with lumbar disc herniation.

Supplementary material

11999_2014_3490_MOESM1_ESM.doc (127 kb)
Supplementary material 1 (DOC 127 kb)

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Copyright information

© The Association of Bone and Joint Surgeons® 2014

Authors and Affiliations

  • Laxmaiah Manchikanti
    • 2
    • 1
  • Ramsin M. Benyamin
    • 3
    • 4
  • Frank J. E. Falco
    • 5
    • 6
    • 7
  • Alan D. Kaye
    • 8
  • Joshua A. Hirsch
    • 9
    • 10
  1. 1.Pain Management Center of Paducah, KYPaducahUSA
  2. 2.Department of Anesthesiology and Perioperative MedicineUniversity of LouisvilleLouisvilleUSA
  3. 3.Millennium Pain CenterBloomingtonUSA
  4. 4.Department of Surgery, College of MedicineUniversity of IllinoisUrbana-ChampaignUSA
  5. 5.Mid Atlantic Spine & Pain PhysiciansNewarkUSA
  6. 6.Pain Medicine Fellowship ProgramTemple University HospitalPhiladelphiaUSA
  7. 7.Department of Physical Medicine and RehabilitationTemple University Medical SchoolPhiladelphiaUSA
  8. 8.Department of AnesthesiaLouisiana State University Health Science CenterNew OrleansUSA
  9. 9.Interventional Care, Minimally Invasive Spine Surgery, Interventional Radiology, Endovascular Neurosurgery and Neuroendovascular ProgramMassachusetts General HospitalBostonUSA
  10. 10.Harvard Medical SchoolBostonUSA

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