Differentiating Common Peroneal Neuropathy from L5 Radiculopathy

Diagnostic Considerations

• Early in the disease course, all electrodiagnostic studies may be normal, requiring repeat testing in 3-4 weeks if clinical suspicion remains high, as recommended by the MMWR Recommendations and Reports 1

Limitations of Nerve Conduction Studies

• Logistic regression models using motor conduction patterns can correctly classify radiculopathy versus axonal neuropathy in 76% of cases, with 74% sensitivity and 80% specificity, although the specific guideline society is not mentioned 1