Lateral compartment of the Leg

Question 1

What are the muscles in the lateral compartment of the leg

Answer 1

• Fibularis longus

- Fibularis brevis

Question 2

What is the main action of the lateral compartment muscles

Answer 2

Evert the foot

Question 3

What are the attachments for the fibularis longus

Answer 3

• Head of the fibula

- base of the first metatarsal and cuneiform (plantar surface of the foot)

Question 4

What are the attachments of the fibularis brevis

Answer 4

• Inferior 2/3 of the surface of the fibula

- Lateral side of the 5th metatarsal

Question 5

What is the nerve supply for the lateral compartment

Answer 5

Superficial fibular nerve

Question 6

What is the arterial supply of the lateral compartment

Answer 6

• Fibular a

- Posterior tibial artery

Question 7

What 2 structures cover the tendons as they pass from the leg to the foot

Answer 7

• Superior fibular retinaculum

- Inferior fibular retinaculum

Question 8

What is the inferior fibular retinaculum continuous with?

Answer 8

Inferior extensor retinaculum

Question 9

Why is the common fibular nerve vulnerable, what happens if damage occurs

Answer 9

Because it is in a superficial position

-If damaged, can result in the loss of dorsiflexion and you would have FOOT DROP