Anterolateral Leg Flashcards
Eversion Foot
Sole outwards
Inversion Foot
Sole inwards
Which leg compartment is most vulnerable to compartment syndrome
Anterior
Anterior Leg Anterior Boundary
Deep Fascia/Skin
Anterior Leg Posterior Boundary
Interosseous Membrane
Anterior Leg Medial Boundary
Tibia
Anterior Leg Lateral Boundary
Anterior Intermuscular Septum
Anterior Leg Compartment Movement
DorsiFlexion
Tibialis Anterior Origin
Proximal Tibia
Tibialis Anterior Insertion
Medial Cuneiform / 1st Metatarsal
Tibialis Anterior Innveration
Deep Peroneal
Tibialis Anterior Movement
Dorsi Flexion
Inversion of ankle
Extensor Halucis Longus Origin
Fibula
Extensor Halucis Longus Insertion
1st Distal Phalanx
Extensor Halucis Longus Nerve
Deep Peroneal
Extensor Halucis Longus Movement
Extends Great Toe
Dorsi flexes Ankle
Extensor Digitorum Longus Origin
Tibia Lateral Condyle
Fibula
Extensor Digitorum Longus Insertion
Middle/Distal Phalanx of 4 Lat Toes
Extensor Digitorum Longus Innervation
Deep Peroneal
Extensor Digitorum Longus Movement
Dorsiflex ankle
Extend toes
Peroneus Tertius Origin
Inferior Fibula
Peroneus Tertius Insertion
5th Metatarsal
Peroneus Tertius Movement
Dorsiflexion
Eversion
Peroneus Tertius Nerve
Deep Peroneal
Lateral Compartment Nerve
Superficial Peroneal
Which Leg Compartment has no artery
Lateral
Peroneus Longus Origin
Superior Fibula
Pernoeus Longus Insertion
Medial Cuneiform
1st Metatarsal
Peroneus Longus Movement
Plantarflexion
Everts foot
Peroneus Longus Nerve
Superficial Peroneal
Peroneus Brevis Nerve
Superficisal Peroneal
Peroneus Brevis Action
Plantarflexion
Everts foot
Peroneus Brevis Origin
Inferior Fibula
Peroenus Brevis Insertion
5th Metatarsal
Foot Retinaculum
Superior Extensor Retinaculum
Inferior Extensor Retinaculum
Superior Extensor Retinaculum role
Prevents bowstringing of EDL, EHL, Peroneus Tertius and Tibialis Anterior (dorsiflexors)
Inferior Extensor Retinaculum does
Prevents bowstringing of peroneus longus and Brevis (plantarflexors)
Sciatic Nerve Roots
L4-S3
Sciatic Nerve exits pelvis via
Greater Sciatic Foramen
Sciatic Nerve two branches
Common Peroneal (ant/lat)
Tibial (post)
Common Peroneal Nerve divides into __________ at the _______
Deep/Superficial Peroneal, Neck of fibula (just after exiting popliteal fossa)
Deep Peroneal Nevre supplies
Anterior Leg Compartment, dorsal foot muscles, cutaneous first webspace
SUperifical Peroneal Nerve supplies
Lateral leg muscles, cutaneous anterior leg + dorsal foot
How does anterior tibial go from posterior -> anterior
Hole in interosseous membrane
The lateral leg compartment is supplied by branches of ______ despite having no artery in the compartment
Fibular
Dorsalis Pedis is the continuation of
Anterior Tibial
Anterior Tibial becomes Dorsalis Pedis when
Crossing between the malleoli
Peroneal Artery is a branch of
Posterior Tibial
Dorsal Foot muscles supplied by
Deep Peroneal Nerve
Key clinical finding of compartment syndrome
Pain (too late if anything else eg pulselessness is found)
Foot drop caused by weakness of _______ muscles
Dorsiflexors
Which nerves could be injured to cause foot drop
Deep Peroneal (therefore common peroneal, sciatic or L4-S3 roots)