Lateral Compartment of the Leg

Question 1

Muscles inside the lateral compartment of the leg

Answer 1

1. Fibularis Brevis M

2. Fibularis Longus M.

Question 2

Innervation of the lateral compartment of the leg

BS of the lateral compartment of the leg

Answer 2

1. Superficial fibular N

2. Perforating arteries of the fibular A.

Question 3

Fibularis Longus M

I:

BS:

Answer 3

I: Superficial fibular n

BS: Perforating branches of the fibular A.

Question 4

Fibularis Longus M

Action

Answer 4

1. Eversion

2. Plantarflexion

Question 5

Fibularis Brevis M

I

B.S:

Answer 5

I: Superficial fibular n

BS: Perforating branches of the fibular A.

Question 6

Fibularis Brevis M

Action

Answer 6

1. Eversion

2. Plantarflexion

Question 7

What is the primary dorsiflexor and eversion nerve?

Answer 7

Common fibular nerve

Question 8

Common fibular nerve trajectory

Answer 8

winds superficially around the fibular head, thus, it is the most commonly injured nerve of the lower extremity

Question 9

What is the most commonly injured nerve in the lower extremity?

Answer 9

Common fibular N

Question 10

What happens if we injure the common fibular n?

Answer 10

Results in paralysis of all anterior and lateral crural muscles. The loss of dorsiflexion and eversion causes foot drop. Pt cannot raise tops and heel strike, they can only flop the foot down.
They have a high stepping gait.
They also have loss of sensation along the anterolateral leg and dorsum of the foot.