Nerve compressions

Question 1

Which nerve root compression results in the following:

Sensory loss over anterior thigh
Weak knee extension
Weak hip flexion and adduction
Reduced knee reflex

Answer 1

L3 nerve root compression

Question 2

Which nerve root compression results in the following:

Sensory loss on anterior aspect of knee and medial malleolus
Weak knee extension
Weak hip adduction
Reduced knee reflex

Answer 2

L4 nerve root compression

Question 3

Which nerve root compression results in the following:

Sensory loss of dorsum of foot
Weakness in dorsiflexion
Intact reflexes

Answer 3

L5 nerve root compression

Question 4

Which nerve root compression results in the following:

Sensory loss posterolateral aspect of leg and lateral aspect of foot
Weakness in plantar flexion
Reduced ankle reflex

Answer 4

S1 nerve root compression