Anterolateral Leg Flashcards
What is the fascia of the thigh called compared to the fascia of the leg?
Fascia lata compared to crural fascia
What is the thickening of fascia near the anterior ankle?
Superior and inferior extensor retinaculum
What is the iliotibial tract made of?
A thickening of the fascia lata
What muscles and actions consist of the anterior compartment of the leg?
They all dorsiflex and extend toes Tibialis Anterior Extensor hallucis longus Extensor digitorum Longus Fibularis Tertius Mm.
Where can the tendon of fibularis tertius M. be found in the foot?
Laterally to the extensor digitorum longus muscle
What would happen if there is no feeling inbetween your first and second toes?
The deep fibular cutaneous N mustve been damaged (deep fibular N supplies cutaneous area between 1st/2nd toes)
What does the anterior tibial artery run with in the anterior leg? What does it become?
It runs along anterior leg with deep fibular N, becoming dorsalis pedis artery past ankle
What does the lateral compartment of the anterior leg consist of?
Superficial fibular N., fibularis longus (more lateral) and brevis (deep to longus with larger belly) M.
What is another word for fibula?
peroneal/peroneus
What inserts on the tuberostiy of the 5th metatarsal base?
fibularis brevis M.
What is most of the anterior/dorsal part of the foot (cutaneous) supplied by (nerve-wise, not including the area between the first and second toe)?
Superficial Fibular N.
What is the most commonly injured lower extremity nerve?
The common fibular nerve
What does injury to the common fibular nerve result in?
paralysis of all anterior and lateral crural muscles
What is the result of the injury to the common fibular N.?
loss of dorsiflexion and eversion causing foot-drop, cannot achieve heel strike in gait, loud clop with foot, high step, waddling gait or swing out gait. **loss sensation to anterolateral leg and dorsum foot
What happens during compartmental syndromes?
Hemorage, edema, inflammation lead to intracompartmental pressure which can lead to ischemia (lack of blood flow) and permanent injury
What can be done to relieve intracompartmental pressure in the leg?
Fasciotomy, an incision in the fascia is made, the leg is left open until the swelling goes down to avoid permanent damage, then suture leg up days later
What causes shin splints and what happens?
Cause by repetitive microtrauma to tibialis anterior, inducing small tears to periosteum over the tibia and or tears overlying deep fascia.
What are shin splints a mild form of?
Mild form of compartmental syndrome; swelling of tibialis anterior due to repetitive ground reaction force
What arteries connects the knee and femor anastomoses?
descending branch of the lateral circumflex femoral A.
What is the key action of the tibial N?
Plantar flexion (anterior leg)
What does creatine kinase represent in the body?
Muscle Death
