The Leg

Question 1

What is osteomyelitis?

Answer 1

Infection of bone following trauma

Question 2

What is the intraosseous membrane?

Answer 2

Fibrous joint which units tibia and fibula. Separates anterior and posterior compartment muscles and acts as attachment site.

Question 3

What movements are the anterior compartment muscles primarily involved in?

Answer 3

Dorsiflexion (up) + inversion of foot

Question 4

What is the blood supply to the anterior compartment, and where does it arise from?

Answer 4

Anterior tibial artery. Arises from popliteal artery and enters anterior compartment through interosseous membrane foramen.

Question 5

What is the nerve supply to the anterior compartment, and where does it arise?

Answer 5

Deep fibular nerve. Arises from common fibular nerve which arises from sciatic nerve.

Question 6

Where do the tendons of fibulas longus and brevis pass in relation to the lateral malleous?

Answer 6

Posterior to the lateral malleolus

Question 7

What is the blood supply to the lateral compartment?

Answer 7

Posterior tibial and fibular artery

Question 8

What clinical problem is seen if the common fibular nerve is injured?

Answer 8

Footdrop: patients in constant plantar flexion and unable to dorsiflex.

Question 9

What is the blood supply to the posterior compartment?

Answer 9

Posterior tibial artery

Question 10

Where is the posterior tibial pulse palpable?

Answer 10

Posterior to medial malleolus

Question 11

In what order do the nerves and muscles pass posterior to the medial malleolus?

Answer 11

Tom, Dick And Nervous Harry
Tibialis posterior
fDl
tibial Artery 
tibial Nerve
fHl