The Leg Flashcards
Which two long bones make up the osteology of the leg?
Tibia and Fibula
Anteriorly, which long bone is most lateral?
Fibula
From superior to inferior, what are the main features of the tibia?
Intercondylar eminence Lateral and medial condyles Tibial tuberosity Shaft and IO border Fibular Notch Medial malleolus Talar Articular Surface
Which feature can be seen on the posterior surface of the tibia?
Soleal Line
What is acute osetomyelitis?
A new bone infection
Where is the tibia unprotected?
Anteromedially
Why is the tibia the commonest long bone to be fractured?
Unprotected anteromedially
Slender in its lower third
What is a compound injury?
When the bone breaks in such a way that fragments stick out through the skin or the wound penetrates down to open bone
Why is the tibia good for donation for bone grafts?
Extensive subcutaneous surface
From superior to inferior, what are the main features of the fibula?
Superior tibiofibular articular surface Head of fibula Neck of fibula Shaft of fibula Lateral malleolus
What are the functions of the interosseous membrane in the leg?
A form of fibrous going which separates the muscles of anterior and posterior compartments as well as unite the long bones of the leg. Also acts as a site for muscle attachment
What is the function of the superior aperture in the interosseous membrane?
Passage of the anterior tibial vessels
What is the function of the inferior aperture in the interosseous membrane?
Passage of the anterior perineal vessels
Which muscles are in the anterior compartment of the leg?
Tibialis anterior
Extensor digitorum longs
Extensor hallucis longus
Fibularis tertius
What is the collective function of the muscles in the anterior compartment of the leg?
Dorsiflexion and inversion at the ankle