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S1 Pedicle Subtraction Osteotomy for Fixed Sagittal Imbalance and Lumbosacral Kyphosis

Bronson, Wesley H. MD, MSB; Dai, Amos BS; Protopsaltis, Themistocles MD

doi: 10.1097/BSD.0000000000000752
SURGICAL TECHNIQUE
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S1 pedicle subtraction osteotomies (PSOs) are indicated in patients with fixed, high-grade L5–S1 spondylolisthesis or kyphosis secondary to a sacral fracture, who present with severe sagittal imbalance. Unlike lumbar PSOs, sacral osteotomies are rare, and there is a paucity of literature outlining techniques. Here, we present the indications, planning, technique, and outcomes for S1 PSOs.

Department of Orthopaedic Surgery, New York University Hospital for Joint Diseases, New York, NY

The authors declare no conflict of interest.

Reprints: Wesley H. Bronson, MD, MSB, Department of Orthopaedic Surgery, New York University Hospital for Joint Diseases, 301 E 17th Street, New York, NY 10003 (e-mail: wesleyhbronson@gmail.com).

Received July 18, 2018

Accepted October 24, 2018

© 2019 by Lippincott Williams & Wilkins, Inc.