Comparison of clinical efficacy and radiological findings of interspinous dynamic stabilization system versus unilateral biportal endoscopy for lumbar spinal stenosis: a retrospective cohort study

作者：Dongyue Li, Yunzhong Cheng, Xuanyu Chen, Peng Yin, Qingjun Su · 发表于：Journal of Orthopaedic Surgery and Research · 年份：2025 · DOI：10.1186/s13018-025-05859-0 · 被引用次数：6 · 研究领域：Spine and Intervertebral Disc Pathology、Scoliosis diagnosis and treatment、Cervical and Thoracic Myelopathy

BACKGROUND: Posterior lumbar interbody and fusion (PLIF) for lumbar spinal stenosis (LSS) has declined in recent years, with non-fusion techniques such as the interspinous dynamic stabilization system (IDSS) and unilateral biportal endoscopy (UBE) gaining prominence. However, there remains a paucity of comparative studies directly evaluating the therapeutic efficacy between these two distinct non-fusion approaches-IDSS as a motion-preserving stabilization method and UBE as a minimally invasive decompression technique. This investigation seeks to systematically assess and contrast both clinical efficacy and radiological findings associated with IDSS and UBE interventions in LSS management. METHODS: This retrospective cohort study analyzed 209 patients with LSS treated between January 2015 and January 2022, stratified into two cohorts: the IDSS group (n = 112) and the UBE group (n = 97). Demographic and perioperative parameters, including age, gender, body mass index (BMI), hospital stay, operative time, intraoperative fluoroscopy frequency, blood loss, incision length and postoperative complications, were systematically documented for comparative analysis. Clinical outcomes were evaluated using the Visual Analogue Scale (VAS) for low back and leg pain and the Oswestry Disability Index (ODI) at four intervals: Preoperative, 1-month postoperative, 3-month postoperative, and the final follow-up. Therapeutic efficacy was further quantified at the final follow-up utilizing the modi...