The electrodiagnostic evaluation of radiculopathy

Area of Science:

• Neurology
• Clinical Neurophysiology

Background:

• Radiculopathy, affecting cervical and lumbosacral nerve roots, causes significant patient morbidity.
• Accurate diagnosis is essential for effective management and treatment planning.

Purpose of the Study:

• To provide a comprehensive review of electrodiagnostic study applications in radiculopathy evaluation.
• To outline the utility of various electrodiagnostic techniques in diagnosing cervical and lumbosacral radiculopathy.

Main Methods:

• Review of standard nerve conduction studies (NCS).
• Discussion of late responses, including H-reflex and F-response.
• Explanation of evoked potentials (EPs), such as SSEPs and P300.
• Description of needle electrode examination (NEE) for muscle and nerve assessment.

Main Results:

• Nerve conduction studies help differentiate radiculopathy from peripheral neuropathies.
• Late responses and evoked potentials offer insights into nerve root and central pathway integrity.
• Needle electrode examination assesses denervation and reinnervation in affected myotomes.

Conclusions:

• Electrodiagnostic studies are indispensable tools for confirming and localizing radiculopathy.
• A combination of NCS, late responses, EPs, and NEE provides a thorough diagnostic work-up.
• These studies guide clinical decision-making and treatment strategies for radiculopathy.