Ankle and Foot Flashcards
(43 cards)
How many bones and joints make up the ankle and foot?
26 bones, 34 joints.
What is the function of the ankle and foot?
it is a mobile adaptor and rigid lever.
What bones make up the anatomy of the foot and ankle?
Tibia, fibula, calcaneus, talus, cuboid, navicular, cuneiforms, metatarsals, and phalanges.
What are the bony landmarks of the tibia?
medial malleolus and fibular notch.
What are the bony landmarks of the fibula?
lateral malleolus and malleolar fossa.
Where is the talus located?
Base of the tibia, can be palpated during dorsiflexion. It has no muscular attachments.
What are bony landmarks of the calcaneus?
tuberosity and sustentaculum tali.
What ligaments make up the lateral collateral ligament?
posterior talofibular ligament, calcaneofibular ligament, anterior talofibular ligament.
What are the medial talocrural ligaments that make up the deltoid ligament?
posterior tibiotalar portion, tibiocalcaneal portion, anterior tibiotalar portion, and tibionavicular portion.
What muscles aid in dorsiflexion?
Tibialis anterior, extensor digitorum longus(EDL), extensor hallucis longus, peroneus tertius
What muscles aid in plantarflexion?
Gastrocnemius, soleus, tibialis posterior, flexor digitorum longus, flexor hallucis longus, peroneus brevis/longus, and plantaris.
What muscles aid in inversion?
Tibialis anterior, tibialis posterior, extensor hallucis longus, extensor digitorum longus, flexor hallucis longus.
What muscles contribute to eversion?
Peroneus longus, peroneus brevis, peroneus tertius, extensor digitorum longus.
What kind of joint is the ankle?
hinge
When is the ankle most stable?
dorsiflexion
What are the degrees of motion for the ankle in dorsiflexion and plantar flexion?
10 degrees dorsiflexion to 50 degrees plantar flexion.
What are functional tests for ankle injuries?
walk on toes, heels, lateral and medial borders of the feet, hop on injured ankle.
What are inversion sprains?
most common and injures lateral ligaments. The anterior talofibular ligament is injured from inversion/plantar flexion/ internal rotation. Severity of sprain classified according to grade.
What are the Ottawa ankle rules for? What are the criteria?
Used to determine if x-rays are needed.
- pain in malleolar or midfoot
- tenderness over inferior or posterior pole of either malleoli
- inability to bear weight
- tenderness along base of 5th metatarsal.
What is a grade 1 ligament sprain etiology, sign/symptom, and management?
occurs with inversion/plantar flexion stretching the anterior talofibular ligament.
mild pain/disability, weight bearing minimally impaired.
RICE 1-2 days; tape, return to activity 7-10 days.
What is a grade 2 ligament sprain? etiology, signs and symptoms, and management?
moderate inversion force causing disability and many days of lost time.
feel/hear pop/snap; moderate pain w difficulty weight bearing.
RICE for 72 hrs, x-rays to rule out fracture, crutches 5-10days; protective immobilization required but begin ROM exercises early; taping provides support.
What is a grade 3 ligament sprain etiology, sign/symptoms, and management?
uncommon but disabling, significant force resulting in subluxation/reduction. Damages anterior/posterior talofibular and calcaneofibular ligaments.
severe pain/swelling, hemarthrosis, discoloration. No weight bearing.
-RICE, x-rays, splint 3-6 weeks, crutches after cast removal. Isometric exercise in cast, ROM, PRE, balance exercises out of cast.
Potential surgery to stabilize ankle.
What are eversion sprains?
5-10% ankle sprains.
eversion force results in damage to deltoid ligament and potential fracture to fibula.
Etiology, signs and symptoms and management of eversion sprains:
pronated, hypermobile or depressed medial longitudinal arch.
severe pain/unable to weight bear.
RICE; x-ray, NSAIDs, same course of treatment as inversion.
Grade 2 or higher may result in excessive pronation or fallen arch.