Foot drop

Question 1

Common peroneal nerve lesion

Answer 1

Foot drop
Scar over neck of right fibula
Wasting of anterolateral compartment of calf
Weakness of ankle dorsiflexion and eversion
Weakness of dorsiflexion of first toe
Loss of sensation over lateral calf and dorsum of foot

Question 2

L5 lesion

Answer 2

Positive straight leg raise
Weakness on hip abduction
WEakness of ankle dorsiflexion, inversion and eversion
Weakness of dorsiflexion of first toe
Loss of sensation over lateral thigh, calf and dorsum of the foot

Question 3

Causes of flaccid foot drop

Answer 3

Muscle - distal myopathies, spinal muscular atrophy, trauma
NM junction - MG
LMN - MND, causes of motor neuropathies

Question 4

Causes of spastic foot drop

Answer 4

Stroke, tumour, causes of spastic paraparesis