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Transforaminal Epidural Steroid Injections in Lumbosacral Radiculopathy: A Prospective Randomized Study

Vad, Vijay B., MD,*†‡; Bhat, Atul L., MD; Lutz, Gregory E., MD,*†; Cammisa, Frank, MD*

Randomized Trial
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SDC

Study Design.  A prospective study randomized by patient choice from the private practice of a single physician affiliated with a major teaching hospital was conducted.

Objectives.  To compare transforaminal epidural steroid injections with saline trigger-point injections used in the treatment of lumbosacral radiculopathy secondary to a herniated nucleus pulposus.

Summary of Background Data.  Epidural steroid injections have been used for more than half a century in the management of lumbosacral radicular pain. At this writing, however, there have been no controlled prospective trials of transforaminal epidural steroid injections in the treatment of lumbar radiculopathy secondary to a herniated nucleus pulposus.

Methods.  Randomized by patient choice, patients received either a transforaminal epidural steroid injection or a saline trigger-point injection. Treatment outcome was measured using a patient satisfaction scale with choice options of 0 (poor), 1 (fair), 2 (good), 3 (very good), and 4 (excellent); a Roland-Morris low back pain questionnaire that showed improvement by an increase in score; a measurement of finger-to-floor distance with the patient in fully tolerated hip flexion; and a visual numeric pain scale ranging from 0 to 10. A successful outcome required a patient satisfaction score of 2 (good) or 3 (very good), improvement on the Roland-Morris score of 5 or more, and pain reduction greater than 50% at least 1 year after treatment. The final analysis included 48 patients with an average follow-up period of 16 months (range, 12–21 months).

Results.  After an average follow-up period of 1.4 years, the group receiving transforaminal epidural steroid injections had a success rate of 84%, as compared with 48% for the group receiving trigger-point injections (P < 0.005).

Conclusion.  Fluoroscopically guided transforaminal injections serve as an important tool in the nonsurgical management of lumbosacral radiculopathy secondary to a herniated nucleus pulposus.

From the *The Hospital for Special Surgery, New York, New York, the

†Weill Medical College of Cornell University, New York, New York, the

‡Association of Tennis Professionals and Professional Golfers’ Association, and the

§Physical Medicine and Rehabilitation, New York University School of Medicine, New York, New York.

Acknowledgment date: January 19, 2001.

Acceptance date: April 11, 2001.

Device status category: 1.

Conflict of interest category: 12.

Address reprint requests to

Vijay B. Vad, MD

The Hospital for Special Surgery

535 East 70th Street

New York, NY 10021

E-mail: vadv@hss.edu

© 2002 Lippincott Williams & Wilkins, Inc.