• Jin Peng Du, Yong Fan, Ji Jun Liu, Jia Nan Zhang, Shi Chang Liu, and Dingjun Hao.
• Department of Spine Surgery, Xi'an Jiaotong University-affiliated Honghui Hospital, Xi'an City, China.
• World Neurosurg. 2017 Dec 1; 108: 791-797.

ObjectiveApplication of nerve root block is mainly for diagnosis with less application in intraoperative treatment. The aim of this study was to observe clinical and imaging outcomes of application of gelatin sponge impregnated with a mixture of 3 drugs to intraoperative nerve root block combined with robot-assisted minimally invasive transforaminal lumbar interbody fusion surgery in to treat adult degenerative lumbar scoliosis.MethodsFrom January 2012 to November 2014, 108 patients with adult degenerative lumbar scoliosis were treated with robot-assisted minimally invasive transforaminal lumbar interbody fusion surgery combined with intraoperative gelatin sponge impregnated with a mixture of 3 drugs. Visual analog scale and Oswestry Disability Index scores were used to evaluate postoperative improvement of back and leg pain, and clinical effects were assessed according to the 36-Item Short-Form Health Survey. Imaging was obtained preoperatively, 1 week and 3 months postoperatively, and at the last follow-up. Fusion status, complications, and other outcomes were assessed.ResultsFollow-up was complete for 96 patients. Visual analog scale scores of leg and back pain on postoperative days 1-7 were decreased compared with preoperatively. At 1 week postoperatively, 3 months postoperatively, and last follow-up, visual analog scale score, Oswestry Disability Index score, coronal Cobb angle, and coronal and sagittal deviated distance decreased significantly (P = 0.000) and lumbar lordosis angle increased (P = 0.000) compared with preoperatively. Improvement rate of Oswestry Disability Index was 81.8% ± 7.4. Fusion rate between vertebral bodies was 92.7%.ConclusionsApplication of gelatin sponge impregnated with 3 drugs combined with robot-assisted minimally invasive transforaminal lumbar interbody fusion for treatment of adult degenerative lumbar scoliosis is safe and feasible with advantages of good short-term analgesia effect, minimal invasiveness, short length of stay, and good long-term clinical outcomes.Copyright © 2017 Elsevier Inc. All rights reserved.

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