✅ Anatomical Location and Structure
- Capsular ligament located in the deepest (third) layer of the lateral aspect of the knee
- Femoral origin is located posterior and proximal to the lateral collateral ligament (LCL)
(Skeletal Radiology (2020) 49:1037–1049)
✅ Visibility on Imaging
- Variable visibility, ranging from 51% to 100% of cases
- Distal tibial portion is the most consistently visualized, often best depicted on coronal sequences
(Magn Reson Imaging Clin N Am. 2022 May;30(2):261-275)
✅ Associated Injuries
- Closely associated with concomitant anterior cruciate ligament (ACL) tear
- Higher likelihood of Segond fracture or distal avulsion near the lateral tibial plateau
(Am J Sports Med. 2018 Apr;46(5):1235-1242)
✅ Accuracy of MRI in Diagnosis
- Accuracy as high as 88% for identifying ALL injury in the setting of concurrent ACL injury
- Sensitivity may decrease for subacute (>1 month) and chronic injuries
(Magn Reson Imaging Clin N Am. 2022 May;30(2):261-275)
✅ Other Associated Injuries
- ALL injury is more likely to be associated with lateral meniscal tear, collateral ligament injury, and osseous injury
(Am J Sports Med. 2018 Apr;46(5):1235-1242)
"Visualizing MSK Radiology: A Practical Guide to Radiology Mastery"
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#AnterolateralLigament, #KneeInjury, #ACLTear, #SegondFracture, #LateralMeniscusTear, #CollateralLigamentInjury, #OsseousInjury, #MRIAccuracy, #KneeAnatomy, #SportsMedicine
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