Diagnosis of Compressed Nerve Root in Lumbar Disc Herniation Patients by Surface Electromyography

作     者：Li, Wei Liu, Yan-cheng Zheng, Chen-fan Miao, Jun Chen, Hui Quan, Hai-ying Yan, Song-hua Zhang, Kuan 

作者机构：Capital Med Univ Sch Biomed Engn 10 Xitoutiao Beijing 100069 Peoples R China Capital Med Univ Beijing Key Lab Fundamental Res Biomech Clin Appl Beijing Peoples R China Tianjin Hosp Dept Spinal Surg Tianjin Peoples R China Chinese Acad Sci Suzhou Inst Biomed Engn & Technol Suzhou Peoples R China 

出 版 物：《ORTHOPAEDIC SURGERY》 (整形外科)

年 卷 期：2018年第10卷第1期

页      面：47-55页

核心收录：

学科分类：1002[医学-临床医学] 100210[医学-外科学(含：普外、骨外、泌尿外、胸心外、神外、整形、烧伤、野战外)] 10[医学] 

基　　金：National Natural Science Foundation of China 

主　　题：Compressed nerve root Diagnosis Logistic regression model Lumbar disc herniation Surface electromyography 

摘      要：Objective: To establish a logistic regression model using surface electromyography (SEMG) parameters for diagnosing the compressed nerve root at L5 or S1 level in patients with lumbar disc herniation (LDH). Methods: This study recruited 24 patients with L5 nerve root compression and 23 patients with S1 nerve root compression caused by LDH from May 2014 to May 2016. SEMG signals from the bilateral tibialis anterior and lateral gastrocnemius were measured. The root mean square (RMS), the RMS peak time, the mean power frequency (MPF), and the median frequency (MF) were analyzed. The accuracy, sensitivity, and specificity values were calculated separately. The areas under the curve (AUC) of the receiver-operating characteristic (ROC) curve and the kappa value were used to evaluate the accuracy of the SEMG diagnostic model. Results: The accuracy of the SEMG model ranged from 85.71% to 100%, with an average of 93.57%. The sensitivity, specificity, AUC, and kappa value of the logistic regression model were 0.98 +/- 0.05, 0.92 +/- 0.09, 0.95 +/- 0.04 (P = 0.006), and 0.87 +/- 0.11, respectively (P = 0.001). The final diagnostic model was: P = 1-1 1+ ey;y = 10.76 (5.95 x TA_RMS Ratio) -(0.38 x TA_RMS Peak Time Ratio) -(5.44 x 44 x LG_RMS Peak Time Ratio). L5 nerve root compression is diagnosed when P 0.5 and S-1 nerve root compression when P = 0.5. Conclusions: The logistic regression model developed in this study showed high diagnostic accuracy in detecting the compressed nerve root (L5 and S1) in these patients with LDH.