Part II: 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 twopart 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.

Authors: Dr. Plastaras is on Scientific Advisory Board, BioRestorative (travel/meals/lodging, stock options) 2019, co-authored funded research from Spine Intervention Society (SIS) grant to investigate rate of disc degeneration after provocative discography, Senior Medical Consultant for Family owned TLG Associates (professional licensure/membership, CME activity fees/travel/meals/lodging), copyright ownership of the RICPLAS (© 2006) computer software pertaining to outpatient musculoskeletal pain practice. Board of Directors, McKenzie Institute USA.
2019-2020 AANEM Monograph Development and Review Committee: Dr. Ikjae Lee receives honorarium from Alexion as a consultant. Dr. Leigh Mari Ramos-Platt is on industry sponsored trials sponsored by Sarepta,  Mallinckrodt, Catabasis, and PTC. Dr. Zachary Simmons receives research support from Biohaven and Mallinckrodt and consulting fees from Biohaven.