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Lecture Notes - Leg & Foot |
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--> Osteology:Fascia:
- Foot
- Tarsal bones
- Calcaneus
- Tuberosity - calcaneal tendon
- Sustentaculum tali - flex. hallucis longus passes beneath
- Talus
- Navicular
- Cuboid
- Cuneiforms (medial, intermediate, lateral)
- Metatarsals
- Phalanges - 2 in hallux, 3 in other toes
- Subtalar joint - between talus & calcaneus
- Transverse tarsal joint - talonavicular & calcaneocuboid joints
- Tarsal sinus - beneath neck of talus
- Arches of the foot
- Medial longitudinal - talus, navicular, cuneiforms, medial 3 metatarsals
- Lateral longitudinal - calcaneus, cuboid, lat. 2 metatarsals
- Transverse - cuneiforms & cuboid
Leg - lateral compartment:
- Crural fascia - thickened at ankle to form retinacula
- Extensor retinacula - superior & inferior
- Fibular retinacula - superior & inferior
- Flexor retinaculum (in posterior compartment)
- Plantar aponeurosis
Leg - anterior compartment:
- Muscles
- Fibularis longus m. - tendon crosses sole of foot
- Fibularis brevis m
- Blood supply
- Fibular a. - sends branches from posterior compartment
- Nerve
- Superficial fibular n.
Foot - dorsum:
- Muscles
- Tibialis anterior
- Extensor hallucis longus
- Extensor digitorum longus
- Fibularis tertius
- Blood supply
- Anterior tibial a.
- Nerve
- Deep fibular n.
Foot - plantar:
- Muscles
- Extensor digitorum brevis
- Extensor hallucis brevis
- (Extensor expansions)
- Blood supply
- Dorsalis pedis - continuation of ant. tibial below ankle
- Deep plantar - passes through 1st dorsal interosseous m.
- Nerve
- Deep fibular n. - cutaneous supply of 1st web space
- Medial (big toe) compartment
- Abductor hallucis m.
- Flexor hallucis brevis m. - on either side of long flexor tendon
- Tendon of flexor hallucis longus
- Central compartment
- Flexor digitorum brevis m. - tendons split by long flexor tendons
- Quadratus plantae m. - inserts on long flexor tendons
- Flexor digitorum longus tendons - pass through short fl. tendons
- Lateral compartment
- Calcaneometatarsal ligament - lat. portion of plantar aponeurosis
- Abductor digiti minimi m.
- Flexor digiti minimi brevis m.
- Adductor-interosseous compartment
- Adductor hallucis m. - oblique & transverse heads
- Interosseous mm. (3 plantar & 4 dorsal)
- Blood supply
- Medial plantar
- Lateral plantar
- Plantar arterial arch - anast. w/ deep plantar from dors. pedis
- Nerve
- Medial plantar n. - med. 3 1/2 toes, med. compartment, fl. dig. br.
- Lateral plantar n. - lat. 1 1/2 toes, lat. & add./inteross. compartment, quad. plantae