Foot drop: where, why and what to do?

Area of Science:

• Neurology
• Orthopedics

Background:

• Foot drop is a prevalent neurological condition causing gait impairment and increased fall risk.
• Common peroneal neuropathy at the fibular neck is a frequent etiology, but other causes exist, including central nervous system and peripheral nerve disorders.

Purpose of the Study:

• To outline the diagnostic approach for foot drop.
• To discuss various etiologies and management strategies for foot drop.

Main Methods:

• Comprehensive neurological examination to localize the lesion.
• Nerve conduction studies and electromyography for injury assessment and prognosis.
• Imaging modalities (ultrasonography, CT, MRI) to identify the cause at different anatomical levels.

Main Results:

• Habitual leg crossing is a frequent, often overlooked cause of fibular neck compression.
• Diagnostic tools effectively localize nerve injury and predict recovery potential.
• Imaging reveals causative lesions in the spine, sciatic nerve, or popliteal fossa.

Conclusions:

• A systematic diagnostic process involving clinical evaluation, electrophysiology, and imaging is crucial for accurate foot drop diagnosis.
• Conservative measures, like habit modification, can be effective for certain causes.
• Ankle-foot orthoses provide functional improvement for severe cases, enhancing mobility and safety.