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Sacroiliac Joint Radiofrequency Ablation with a Multilesion Probe: A Case Series of 60 Patients

Schmidt, Peter C. MD*; Pino, Carlos A. MD; Vorenkamp, Kevin E. MD*

doi: 10.1213/ANE.0000000000000282
Pain Medicine: Technical Communication

This retrospective case series of patients with refractory sacroiliac joint (SIJ) pain presents our first 77 SIJ radiofrequency ablation (RFA) procedures performed with a multilesion probe. Of these, 16 (20.8%) provided no relief; 55 (71.4%) provided >50% pain relief at 6 weeks; 42 (54.5%, 95% confidence interval, 42.8%–65.8%) provided >50% pain relief at 6 months; and 12 (15.6%) continued to provide >50% pain relief at 1 year. These results compare favorably to those published using other RFA techniques. In conclusion, more than half of our patients with refractory SIJ pain received some pain relief for at least 6 months after RFA.

From the *Department of Anesthesiology, University of Virginia, Charlottesville, Virginia; and Department of Anesthesiology, University of Vermont, Fletcher Allen Health Care, Burlington, Vermont.

Peter C. Schmidt, MD, is currently affiliated with Department of Anesthesiology, Stanford University, Palo Alto, California.

Kevin E. Vorenkamp, MD, is currently affiliated with Department of Anesthesiology, Virginia Mason Medical Center, Seattle, Washington.

Accepted for publication March 12, 2014.

Funding: None.

The authors declare no conflicts of interest.

Reprints will not be available from the authors.

Address correspondence to Kevin E. Vorenkamp, MD, Virginia Mason Medical Center, 1100 Ninth Ave., Mail Stop B2-AN Seattle, WA 98101. Address e-mail to

© 2014 International Anesthesia Research Society