A novel technique for sublaminar-band-assisted closure of pedicle subtraction osteotomy

摘要

Pedicle subtraction osteotomy (PSO) is the most commonly performed osteotomy to increase lumbar lordosis and gain a balanced spine on the sagittal plane in adults with sagittal imbalance 3, 4. PSO is a technically demanding procedure and poses significant risk on the patient, especially in the elderly 5, including mortality from bleeding and perioperative complications. Insufficient correction has demonstrated to be a risk factor for poor results and reoperation 6-9.