Final Exam: Foot & Ankle Flashcards
What is the capsular pattern of the talocrural joint?
plantarflexion > dorsiflexion
Eversion
pronation, abduction, & dorsiflexion
Inversion
supination, adduction, & plantarflexion
Medial Longitudinal Arch
bony support: calcaneus, talus, navicular, cunieforms, and three medial MTs
ligamentous support: long plantar ligament, spring ligament, and plantar fascia
- muscular support from ant and post tibialis, PL, FHL, FHB, FDL, FDB, abd hallucis
Lateral Longitudinal Arch
bony support: calcaneus, cuboid, 4th and 5th MTs
ligament support: long and short plantar ligaments, plantar fascia
muscular support: peroneus longus brevis, abductor minimi, flexor digitorum longus
Proximal Transverse Arch
supported by posterior tibialis, peroneus longus, and intertarsal ligamentous structures
Distal Transverse Arch
supported by transverse head of adductor hallucis
What are the three ways to measure arch height in patients?
navicular height/foot length; dorsum height at 50% foot length; 1st ray angle
Longitudinal Arch Angle
typical: 130˚ to 150˚
pes planus: <130˚
pes cavus: >150˚
Ottawa Ankle Rules
Ankle X-ray is only required if there is any pain in the malleolar zone and any one of the following:
- Bone tenderness along the distal 6 cm of the posterior edge of the tibia or tip of the medial malleolus, OR
- Bone tenderness along the distal 6 cm of the posterior edge of the fibula or tip of the lateral malleolus, OR
- An inability to bear weight both immediately and in the emergency department for four steps.
Additionally, the Ottawa ankle rules indicate whether a foot X-ray series is required. It states that it is indicated if there is any pain in the midfoot zone and any one of the following:
- Bone tenderness at the base of the fifth metatarsal (for foot injuries), OR
- Bone tenderness at the navicular bone (for foot injuries), OR
- An inability to bear weight both immediately and in the emergency department for four steps.
Examination findings of ankle sprains
- antalgic gait
- ankle in loose packed
- edema (sinus tarsi, malleoli, etc.)
- ecchymosis
- point tenderness
- decreased ROM, strength
- decreased position sense
Jones Fx
fracture at base of 5th MT near insertion of peroneus brevis; high incidence of non-union and could require ORIF; MOI: inversion with plantarflexion
Avulsion Fx
distal attachment of the fibularis brevis; avulsion fracture occurs when FB avulses a piece of bone from the base of the 5th MT
Intervention Plan for Ankle Sprains
- return to function through early mobilization
- RICE
- ambulation
- weight bearing activities
- modalities (ice, compression, e-stim)
- stretching, ROM
- strengthening
- joint mobilizations w/ or w/o taping
- address hip and entire kinetic chain
- compression wrapping
Shin Splints
- inadequate energy attenuation d/t decreased extensibility and/or weakness of lower leg muscles
- rearfoot is varus or valgus
- forcible use of musculature during activity
- faulty lower kinetic chain alignment
Shin Splints may include:
- tendinitis of ant. tibialis and/or post. tibialis
- tibial periostitis
- tibial stress fx.
- acute or chronic compartment syndrome
- now called medial tibial stress syndrome when post. tibialis is involved
Examination Findings of Shin Splints
- pain with running/walking
- point tenderness
- pain with resisted inversion
- edema over post. medial tibia or ant. lateral tibia
- may develop into a stress fracture
- limited gait (antalgic)
- limited running
- limited recreational and work activities dependent on weight bearing and surfaces