Week 5 Flashcards
(92 cards)
Key structures of the foot and ankle to consider following injury
- talus position (anterior?)
- cuboid position (rotated?)
- navicular position (rotated or dropped?)
- base of the 5th (tender on palpation)
- sesamoid bones
Where are the sesamoid bones located in the foot?
- flexor hallucis brevis tendons
Origin of the plantar fascia
- medial process of calcaneal tuberosity
Insertion of plantar fascia
- proximal aspect of digits
Lateral ligaments of the foot
- anterior talofibular (ATFL)
- calcaneofibular (CFL)
- posterior talofibular (PTFL)
- anterior inferior tibiofibular (AITFL)
- posterior inferior tibiofibular (PITFL)
What are the two most common ligaments impacted in a lateral ankle sprain?
- ATFL
- CFL
Ligaments of the medial ankle
- deltoid ligament
- spring ligament
4 Ligaments making up deltoid ligament
- Tibionavicular
- Tibiocalcaneal
- Tibiospring
- Tibiotalar
Role of the spring ligament
- supports medial arch
Types of tibiotalar ligaments
- anterior tibiotalar
- posterior superficial tibiotalar
- posterior deep tibiotalar
Key structures to consider of the medial ankle (tom, dick and harry)
- tibialis posterior
- flexor digitorum longus
- flexor hallicus longus
- tibialis anterior
- achilles
- peroneal tendons
What are the deep plantar flexors?
- tibialis posterior
- flexor digitorum longus
- flexor hallicus longus
Action of tibialis posterior
- plantarflexion
- inversion
Action of flexor digitorum longus
- plantarflexion
- toe flexion
Action of flexor hallucis longus
- plantar flexion
- big toe flexion
Action of tibialis anterior
- dorsiflexion
- inversion
Action of achilles
- plantarflexion
What are the two peroneal tendons?
- peroneus longus
- peroneus brevis
Action of peroneus longus
- eversion
Action of peroneus brevis
- plantarflexion
- eversion
Functional anatomy of tibialis anterior
- eccentrically lowers longitudinal arch
Functional anatomy of tibialis posterior
- stabilizer of longitudinal arch
Functional anatomy of plantar fascia
- dynamic longitudinal arch support
Functional anatomy of anterior talus (what happens up the chain?)
- limits dorsiflexion
- leads to pronation at foot to compensate
- causes internal rotation at tibia
- valgus at knee
- femur internally rotates
- drop in hip
- back pain