ankle sprains Flashcards
what percentage of individuals individual report pain, instability, restrain and full recovery at three years post grade II ankle sprain?
2-3 months every does better
- 5-25% pain @3 year
- 12-22% instability
- 20% resprain @3
- 55-85% fully recover
What are the patient subgroups of lateral ankle sprain for the clinical practice guideline
Acute/protected motion phase - enrolled in about 72 hours -signficant edema - limited weight bearing - evidence of overt gait deviation Progressive loading, sensorimotor training phase - enrolled greater than 72 hours - primary concern of functional instability - no gold stand test available
What are the primary ligament involved in lateral ankle sprains
ATFL ( oblique anterior) gives away first and CFL (vertical medial) is the secondary stabilizer after the ATFL give away
what neural structures are of secondary concern with lateral ankle sprains
superficial peroneal (across the top) and sural (lateral traveling under 5th met)
Describe the quality of evidence surrounding the acute phase DD of lateral ankle sprains
I- ottawa ankle rules for fracture
II - muscle strains
III - cuboid syndrome
IV - sydemosis, subtler and adjacent joint sprains
describe quality of DD of post acute phase
1 - chronic instability
II- accessory ossicles
III - tarsal coalition
IV - impingement, osteochondral lesions, sinus tarsi syndrome
what are the zones of palpation with the OAR
malleolar - 3-5cm of posterior edge of malleolus
mid foot - navicular and cubed, 5th met styloid process
what are functional risk factors for ankle sprains
I - abnormal gait, impaired posture, impaired proprioception, impaired reaction time
II - low aerobic fitness, decreased cutaneous sensation, decreased NCV
III - high self assess liability with hop testing
IV - low ankle strength, impaired balance
what are the structural risk factors for ankle sprains
I - cavus foot type, specific laxity
II- decreased ROM, general laxity, limb dominance, female, laxity in lateral ankle, lateral ankle laxity
III - unstable osseous joint configuration, taller talus in females
V 0 distal TB mechanics, PF position of the ankle during sprain, limited rotational stability
what the extrinsic risk factors for lateral ankle sprains
I - poor conditions, court or team based sports, ankle tape and orthosis decrease, warm-up decreases
II - level of competition, education, appropriate shoe type, slower self selected running speed
III - novice competition and understanding rules of the sport
What is the foot and ankle ability measure good for
region specific designed to assess activity limitations and participation restrictions with general foot MSK
- good content validity and retest reliability
What some evaluative patient self reported indexes have demonstrated validity for use in lateral ankle sprains
- foot and ankle ability measure
- LEFS
- ankle joint functional assessment tool
- chronic ankle instability scale (draw in affect)
- sport ankle rating (patient and clinical parts(
what are some discriminative patient self reported indexes with good validity for LAS
- ankle instability instrument
- cumberland ankle instability tool
- functional ankle instability questionnaire
what is a grade I sprain
- no loss of function
- no laxity
- little or no hemorrhaging
- no point tenderness
- swelling less than 0.5
- ROM loss less then 5 degree
grade II
- some loss of function
- postive AD test (ATFL)
- negative talar tilt (CF)
- hemorrhaging
- point tenderness
- decrease ROM 5-10 degree
- swelling 0.5 to 2.0 cm