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Case Reports
. 2019 Sep;42(9):1363-1365.
doi: 10.1007/s00270-019-02263-0. Epub 2019 Jun 11.

Sacroiliac Joint Ablation Using MR-HIFU

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Case Reports

Sacroiliac Joint Ablation Using MR-HIFU

Arash Najafi et al. Cardiovasc Intervent Radiol. 2019 Sep.

Abstract

The sacroiliac joint is the culprit in 15-30% of patients with chronic lumbar back pain. Ablation of the posterior sensory nerves supplying the joint is an established treatment option before arthrodesis. We report the successful application of MR-HIFU in a patient with therapy-refractory pain using the Sonalleve MR-HIFU system. The outpatient procedure was performed under spinal anaesthesia and analgosedation. The ramus dorsalis of L5 as well as the lateral branches of the ramus dorsalis S1-S3 was targeted, and tissue peak temperature per sonication was controlled using MR-thermometry. There were no post-interventional complications. Clinical improvement began 4 days post-intervention with complete resolution of the pain after 1 month.

Keywords: Chronic back pain; HIFU; Nerve ablation; SIJ.

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