Electromyography and Nerve Conduction Studies in Patients with Lumbar Spinal Stenosis: Is Neurophysiological Examination an Important Tool?
Author(s): Marcus Sofia Ziegler, Renata Siciliani Scalco, Erasmo de Abreu Zardo, Jefferson Becker and Irenio GomesMarcus Sofia Ziegler, Renata Siciliani Scalco, Erasmo de Abreu Zardo, Jefferson Becker and Irenio Gomes
Background: There is no single test that defines properly lumbar spinal stenosis (LSS) diagnosis, and diagnosis of the syndrome continues to rely on clinical judgment. LSS symptoms may be broad and may be seen in multiple disorders in elderly. Hypothesis: To identify the role of electromyography and nerve-conduction studies on LSS diagnosis. Materials and Methods: A cross-sectional study with prospective data collection was conducted. 31 symptomatic patients with LSS confirmed by MRI were evaluated with neurophysiology tests. We compared symptoms and neurophysiologic findings. Results: All patients reported pain, 83.9% of patients reported it to be moderate or severe and 90% of patients took pain medication. LSS did not affect NCS or SSR. Electromyography confirmed high frequency of radiculopathy, particularly multiradicul.. Read More»