The electrodiagnostic (EDX) examination with needle electromyography (EMG) is the most important means of testing for radiculopathy. This test has modest sensitivity but high specificity and complements imaging of the spine. In this second of a two‐part review, the implications of electrodiagnostic findings for diagnosis and clinical management of persons with radiculopathy are reviewed. An EMG confirmed lumbosacral radiculopathy is associated with better clinical outcomes for persons undergoing aggressive conservative management. A positive EMG test portends a better clinical response to epidural corticosteroid injections. If a person undergoes spine surgery, a positive pre‐operative EMG for radiculopathy is also associated with better outcomes.

中文翻译：

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对疑似腰ac部和颈神经根病患者的评估：电诊断评估及其对治疗和预后的影响（第二部分）。

针状肌电图（EMG）进行的电诊断（EDX）检查是测试神经根病的最重要手段。该测试灵敏度适中，但特异性高，可补充脊柱成像。在分两部分的第二部分中，将对电诊断结果对神经根病患者的诊断和临床管理的意义进行回顾。肌电图证实腰神经根病与接受积极保守治疗的患者具有更好的临床疗效。肌电图试验阳性表明对硬膜外注射皮质类固醇激素有更好的临床反应。如果一个人接受脊柱手术，那么神经根病的术前EMG阳性也可以带来更好的预后。