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Delta大通道脊柱内镜技术治疗胸椎黄韧带骨化症疗效分析

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Abstract Objective〓To retrospectively analyzed the clinical efficacy of the treatment of thoracic ossification of ligamentum flavum with unilateral laninotomy and bilateral decompression under Delta canal endoscopy.Methods〓A retrospective analysis was conducted on 13 patients with thoracic ossification of the ligamentum flavum who underwent Delta canal endoscopy between August 2019 and January 2022 in Weifang People’s Hospital.6 males and 7 females，aged 55 to 69 years，with a mean age of (62.62±4.01)years.Patient demographics and perioperative parameters were recorded，and follow-up assessments were performed at 1 month and 6 months postoperatively to document changes in pre-operative and post-operative modified Japanese orthopaedic association score (mJOA)，American spinal injury association sense score (ASS) and American spinal injury association motor score (AMS).The recovery rate and excellent rate based on mJOA scores at the 6-month follow-up were calculated，followed by correlation analyses between RR and gender，age，preoperative mJOA score，radiographic classification type，as well as disease duration.Results〓The mean operation time was (108.46±16.12) minutes，the average blood loss was (23.46±7.47) mL，and the mean length of hospital stay was (6.08±0.86) days.All patients completed the follow-up period，duration ranging from 6 to 35 months，averaging at (16.77±9.33) months.At 1-month and 6-month follow-up after surgery，mJOA，ASS，and AMS scores exhibited significant improvement compared to preoperative values (P＜0.05).The mean recovery rate was (55.69±19.73)% with a good-to-excellent rate of 69.23%.Preoperative disease duration showed a negative correlation with the recovery rate (P＜0.001)，while preoperative mJOA score demonstrated a positive correlation with the recovery rate (P＝0.029).No significant correlations were found between the recovery rate and gender，age or radiographic classification(P＞0.05).Conclusion〓The utilization of transforaminal endoscopic technique for the management of TOLF is deemed to be a safe and dependable approach，offering notable advantages such as rapid postoperative recovery，minimal invasiveness，and reduced intraoperative blood loss.Furthermore，it demonstrates favorable short-term outcomes.

Key words： spinal endoscopy unilateral approach with bilateral decompression thoracic ossification of the ligamentum flavum complications.

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