• World Neurosurg · Sep 2024

    Awake Robotic Minimally-Invasive Transforaminal Lumbar Interbody Fusion under Spinal Anesthesia: a Prospective Study with 1-year Follow-up.

    • Gaetano De Biase, Oluwaseun O Akinduro, Diogo Garcia, Elird Bojaxhi, Ian A Buchanan, Shaun E Gruenbaum, Forcht DagiTeodoroTDepartment of Neurosurgery, Mayo Clinic, Jacksonville, Florida, USA., Alfredo Quinones-Hinojosa, and Kingsley Abode-Iyamah.
    • Department of Neurosurgery, Mayo Clinic, Jacksonville, Florida, USA.
    • World Neurosurg. 2024 Sep 1; 189: e941e947e941-e947.

    BackgroundWe describe our protocol and outcomes of awake robotic minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) under spinal anesthesia.MethodsWe conducted a prospective study of 10 consecutive patients undergoing awake robotic single-level MIS-TLIF with the Mazor X robot. We prospectively collected patient-reported outcomes (back and leg pain visual analog scale and Oswestry Disability Index) preoperatively at 1-month and 1-year follow-ups and assessed fusion and screw placement accuracy with a 1-year computed tomography (CT) scan.ResultsMedian age was 61 years (interquartile range [IQR] = 57.7-66). Median body mass index was 27 kg/m2. No intraoperative complications were reported. Most (9/10) patients were discharged home, and 50% discharged on the day of surgery. Median length of stay was 16.5 hours (IQR = 5-35.5). Median follow-up was 12.5 months (IQR = 12-13.5), with 9 patients having at least 12-month follow-up, with CT scans documenting good screw placement (Gertzbein-Robbins grade A) and solid bony fusion. Median preoperative back pain visual analog scale score was 7.8 (IQR = 6.9-8) versus 1.5 (IQR = 0-3.2) at 1-month post operation, P < 0.01, and 0 (IQR = 0-1) at 1-year follow-up, P < 0.01; median preoperative leg pain 8 (IQR = 7.4-8) versus 0 (IQR = 0-1.2) at 1-month post operation, P < 0.01, and 0 (IQR = 0-2) at 1-year follow-up, P < 0.01; median preoperative Oswestry Disability Index 47.5 (IQR = 27.8-57.5) versus 4 (IQR = 0-16) at 1-month postoperation, P < 0.01, and 0 (IQR = 0-7) at 1-year follow-up, P < 0.01. Median preoperative disk height of the index level was 8 mm (IQR = 2.4-9.5) versus 11.4 mm (IQR = 9.2-11.2) postoperatively,P < 0.01. Median preoperative lordosis of the index level was 5 degrees (IQR = 3.4-8.5) versus 10.1 degrees (7.3-12.2) postoperatively, P < 0.01.ConclusionsOur study showed significant improvement in patient-reported outcomes at 1-month and 1-year follow-ups after awake robotic MIS-TLIF, as well as solid bony fusion on CT scans.Copyright © 2024 Elsevier Inc. All rights reserved.

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