Nghiên cứu mối liên quan giữa chỉ số điện cơ kim với lâm sàng và hình ảnh cộng hưởng từ ở bệnh nhân thoát vị đĩa đệm cột sống thắt lưng

Abstract

Objective: To evaluate the characteristics of changes in electromyography and its relationship with clinical characteristics and magnetic resonance imaging in patients with lumbar disc herniation. Subject and method: Including 60 patients with confirmed diagnosis of lumbar disc herniation, inpatient treatment at 103 Military Hospital from 9/2020 to 3/2021. Result: The age group 40 - 59 accounted for the highest rate of 48.3%; male/female ratio was 1.14/1. Location of disc herniation L₄-L₅ 63.3%, L₅-S₁ 30%, L₄-L₅ and L₅-S₁ 6.7%, type of hernia right posterior deviation 41.6%, hernia posterior left deviation 55%; compound hole 3.4%. Electromyography on the patient side: The percentage of patients with electromyography abnormalities was 50%, of which: L₅ root damage 30%, roots S₁ 13.3%; L₅ and S₁ roots 6.7%, 90% of patients had spontaneous potential; 100% of patients had reduced aggregation and motor units of neuropathy. The rate of electromyographic abnormalities was higher in patients: Disease over 6 months, severe and very severe pain according to VAS scale, stage 3 disc herniation, severe disc herniation, degree of root compression III and severe spinal hepatomegaly, the difference was statistically significant with p<0.05. Conclusion: There is a relationship between the percentage of patients with lumbar disc herniation with changes on electromyography with the clinical severity and the degree of injury on MRI of the lumbar spine.