Common Peroneal And Tibial Nerve Injury

Question 1

What is foot drop?

Answer 1

This is an inability to raise the front part of the foot due to weakness or paralysis of tibialis.ant

Question 2

What causes foot drop?

Answer 2

Common peroneal nerve injury

Question 3

What causes peroneal injury?

Answer 3

Trauma
Neck of fibula fracture
Knee dislocation
Hip fractures causing sciatic nerve injury
Compartment syndrome
L4-l5 disk herniations

Question 4

What clinical features are seen in foot drop pt?

Answer 4

Numbness, Tingling, Pain.

Foot drop; anterior leg muscles paralysis, Loss of dorsiflexion and toe extension.

Loss of eversion.

Sensosry loss - anterolateral aspect of the leg and dorsum of the foot.

Except regions supplied by saphenous and sural nerves

Question 5

Diagnosis for foot drop

Answer 5

Imaging; MRI, CT
Nerve conduction studies
Electromyography
Drag or slap test
Heel walk test – Pt. attempts to walk on their heel, difficulty initiating or keeping foot in the air
Manual muscle test (MMT)
Step up and down test
Jump test

Question 6

Treatment for foot drop

Answer 6

Treat underlying cause.
Non-surgical; Splints, Physical therapy.
Surgical; Decompression, Nerve repair, graft or tendon transfer.

Question 7

Common peroneal nerve is also called?

Answer 7

Common fibula nerve