Abstract
Isthmic lumbar spondylolisthesis (ILS) is a prevalent spinal pathology. Radicular pain in patients is often attributed to L5-S1 ILS combined with foraminal stenosis (FS), making such patients prime candidates for surgical intervention. We herein aimed to elucidate the surgical technique and clinical outcomes of transforaminal endoscopic lumbar foraminotomy (TELF) in the treatment of L5-S1 ILS with FS. From September 2021 to December 2022, 20 consecutive patients were diagnosed with L5-S1 ILS with FS and underwent TELF. All patients were followed up for at least 12months. The clinical outcomes were evaluated using the visual analog scale (VAS), Oswestry Disability Index, and modified MacNab criteria. The mean age of the patients was 62.4±10.9years. The mean preoperative VAS score for low back, VAS score of the leg, and Oswestry Disability Index score was 5.1±1.7, 7.4±0.7, and 58.0±8.4, respectively. These scores significantly improved to 1.8±0.7, 1.5±0.6, and 15.3±7.1 at 12months postoperatively, respectively (P < 0.01). Evaluation based on the modified MacNab criteria revealed that 95.0% of patients achieved a good-to-excellent outcome. One patient underwent revision surgery. TELF emerges as a potentially safe and effective surgical option for alleviating radicular pain in patients with L5-S1 stable ILS combined with FS. While our short-term clinical results are satisfactory, it is necessary to expand the sample size and extend the follow-up time to validate the effectiveness and long-term efficacy of TELF.
Published Version
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