Updated: Apr 24, 2026

Surgical Robot-Assisted Transanal Specimen Extraction Radical Sigmoidectomy Without an Auxiliary Abdominal Incision
Published on: June 13, 2025
S Samuel Bederman1, Gregory Lopez, Tao Ji
1*Department of Orthopaedic Surgery, University of California Irvine, Irvine, CA †Musculoskeletal Tumor Center, People's Hospital, Peking University, Beijing, China; and ‡Department of Orthopaedic Surgery, Montefiore/Albert Einstein College of Medicine, Bronx, NY.
Robotic guidance facilitated a challenging en bloc sacrectomy for a patient with sacral osteosarcoma. This novel approach achieved negative tumor margins, demonstrating its potential in complex spinal tumor resections.
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