Study on effect of free EMG monitoring assisted unilateral biportal spinal endoscopy in treating lumbar disc herniation
10.3969/j.issn.1671-8348.2025.01.030
- VernacularTitle:自由肌电图监测辅助单侧双通道脊柱内镜治疗腰椎间盘突出症效果研究
- Author:
Dan PAN
1
;
Gan LI
;
Dayong CHEN
;
Shaolong TANG
Author Information
1. 中南大学湘雅医学院附属株洲医院脊柱外科,湖南株洲 412000
- Keywords:
discectomy;
unilateral biportal endoscopy;
minimally invasive surgery;
intraoperative elec-tromyography;
general anesthesia
- From:
Chongqing Medicine
2025;54(1):163-167
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the clinical effect of free electromyography(fEMG)monitoring as-sisted unilateral biportal endoscopy(UBE)in the treatment of lumbar disc herniation.Methods Forty pa-tients with lumbar disc herniation were included.The UBE lumbar nucleus pulposus resection under general anesthesia was performed.The operation whole process was completed under the fEMG monitor.The recorded potential was displayed on the monitor screen and the myoelectrical activity was played through speaker.The treatment effect was evaluated by the Visual Analogue Scale(VAS)score and Oswestry Disability Index(ODI).Results All 40 patients completed the surgery successfully,and the postoperative symptoms were im-proved significantly.The VAS scores before operation and in postoperative 3 months were 7(6,8)points and 0(0,1)points respectively,and the difference between the two time points was statistically significant(P＜0.05).The ODI before operation and in postoperative 3 months were(58.30±11.58)and(13.28±5.20)re-spectively,and the difference between the two time points also was statistically significant(P＜0.05).The VAS score and ODI in postoperative 1 year were 1(0,1)points and(13.13±0.40)respectively,showing sta-tistically significant difference compared with before surgery(P＜0.05),but there was no statistically signifi-cant difference compared with postoperative 3 months(P＞0.05).There were 8 cases developing the abnor-mal EMG changes such as spike,burst or tonic fEMG during surgery,with an incidence rate of 20％.After surgery in 8 cases,7 cases had burning radiculalgia and paresthesia of lower extremity,and 1 case had no obvi-ous neuralgia,with a false positive rate of 12.5％.The patients without abnormal fEMG reaction during sur-gery had no significant postoperative neuralgia,and the false negative rate was zero.Conclusion fEMG moni-toring assisted UBE under general anesthesia is a safe and easy method for the treatment of lumbar disc herni-ation.
