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KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Pathology
Clinical Issues
TERMINOLOGY
Definitions
Lateral collateral ligament (LCL) complex
Anterior talofibular ligament (ATFL)
Calcaneofibular ligament (CFL)
Posterior talofibular ligament (PTFL)
Tibiofibular ligament complex
Anterior inferior tibiofibular ligament (AITFL)
Accessory ligament of Bassett is almost always present inferior to AITFL
Posterior inferior tibiofibular ligament (PITFL)
Interosseous ligament
Ankle sprain
LCL tear
Occasionally, tear anterior tibiofibular ligament in addition to LCL
High ankle sprain (syndesmosis sprain)
Tear of tibiofibular ligament complex and often deep deltoid ligament
IMAGING
General Features
Imaging Recommendations
Radiographic Findings
MR Findings
PATHOLOGY
General Features
CLINICAL ISSUES
Presentation
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Image Interpretation Pearls
Selected References
Shakked R et al: Acute and chronic lateral ankle instability diagnosis, management, and new concepts. Bull Hosp Jt Dis (2013). 75(1):71-80, 2017
Roemer FW et al: Ligamentous injuries and the risk of associated tissue damage in acute ankle sprains in athletes: A Cross-sectional MRI Study. Am J Sports Med. 42(7):1549-57, 2014
Crim JR et al: Deltoid ligament abnormalities in chronic lateral ankle instability. Foot Ankle Int. 32(9):873-8, 2011
Brown KW et al: MRI findings associated with distal tibiofibular syndesmosis injury. AJR Am J Roentgenol. 182(1):131-6, 2004
Trnka HJ et al: Arthrography of the foot and ankle. ankle and subtalar joint. Foot Ankle Clin. 5(1):49-62, vi, 2000
Colville MR et al: Strain measurement in lateral ankle ligaments. Am J Sports Med. 18(2):196-200, 1990
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Pathology
Clinical Issues
TERMINOLOGY
Definitions
Lateral collateral ligament (LCL) complex
Anterior talofibular ligament (ATFL)
Calcaneofibular ligament (CFL)
Posterior talofibular ligament (PTFL)
Tibiofibular ligament complex
Anterior inferior tibiofibular ligament (AITFL)
Accessory ligament of Bassett is almost always present inferior to AITFL
Posterior inferior tibiofibular ligament (PITFL)
Interosseous ligament
Ankle sprain
LCL tear
Occasionally, tear anterior tibiofibular ligament in addition to LCL
High ankle sprain (syndesmosis sprain)
Tear of tibiofibular ligament complex and often deep deltoid ligament
IMAGING
General Features
Imaging Recommendations
Radiographic Findings
MR Findings
PATHOLOGY
General Features
CLINICAL ISSUES
Presentation
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Image Interpretation Pearls
Selected References
Shakked R et al: Acute and chronic lateral ankle instability diagnosis, management, and new concepts. Bull Hosp Jt Dis (2013). 75(1):71-80, 2017
Roemer FW et al: Ligamentous injuries and the risk of associated tissue damage in acute ankle sprains in athletes: A Cross-sectional MRI Study. Am J Sports Med. 42(7):1549-57, 2014
Crim JR et al: Deltoid ligament abnormalities in chronic lateral ankle instability. Foot Ankle Int. 32(9):873-8, 2011
Brown KW et al: MRI findings associated with distal tibiofibular syndesmosis injury. AJR Am J Roentgenol. 182(1):131-6, 2004
Trnka HJ et al: Arthrography of the foot and ankle. ankle and subtalar joint. Foot Ankle Clin. 5(1):49-62, vi, 2000
Colville MR et al: Strain measurement in lateral ankle ligaments. Am J Sports Med. 18(2):196-200, 1990
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