The Ankle Part 2: Exam 3 Flashcards
MOI lateral ankle sprain
Inversion and plantar flexion
Lateral ankle sprain ligaments
- ATFL
- CFL
How ATFL is injured
Plantar flexion and inversion
How CFL is injured
Inversion
Etiology of grade one ligament sprain
- inversion and plantar flexion
- causes stretching of ATFL
Symptoms of grade 1 ligament sprain
- mild pain and disability
- minimally impaired weight bearing
- point tenderness over ligament and no laxity
Management of grade 1 sprain
- RICE 1-2 days
- limited weight bearing initially and then agressive strengthening rehab
- tape can provide additional support
- return to activity in 7-10 days
Etiology of grade 2 sprain
-moderate inversion force causing great deal of disability with many days of lost time
Symptoms of grade 2 sprain
- feel/ hear a pop or snap
- moderate pain with difficulty bearing weight
- tenderness and edema
- special tests will be positive for laxity
Management of grade 2 sprain
- RICE for 72 hours
- x-ray to rule out fracture
- crutches for 5-10 days
- progress to weight bearing
Etiology of grade 3 sprain
- relativity uncommon but extremely disabling
- caused by significant force resulting in spontaneous subluxation and reduction
- damages the anterior/ posterior talofibular and calcaneofibular ligaments as well as the capsule
Symptoms of grade 3 sprain
- severe pain
- swelling
- hemarthosis
- discoloration
- unable to bear weight
- grossly positive instability test
Management of grade 3 sprain
- RICE
- x-ray
- possible dorsiflexion splint
- progressive weight bearing
- isometrics in cast
- ROM exercises and balance exercises one out of cast
- possibly surgery
Eversion ankle sprain etiology
-5-10%
What is injured with an eversion sprain?
-deltoid ligament and possible fib fracture
Who is more susceptible to eversion sprains?
-pronated and hypermobile
Symptoms of eversion sprain
- severe pain
- unable to bear weight
Management of eversion sprain
- RICE
- xray
- no weight bearing initially
- posterior splint
- NSAIDs
- same course of treatment of grade 2 sprain
What can happen with grade 2 or higher sprain?
Considerable instability and may cause weakness in medial longitudinal arch resulting in excessive pronation or fallen arch
Etiology of high ankle sprain
-external rotation and or forced dorsiflexion
What is injured in high ankle sprain
- anterior/posterior tibiofibular ligaments
- sydesmosis
Symptoms of high ankle sprain
- Pain anterolaterally
- loss of function
- pain
Management of high ankle sprain
- difficult and longer to treat
- modified weight bearing
Another name for high ankle sprain
Syndesmotic