✅ Knee MRI Mastery/Chap 3.Collateral Ligaments

(Fig 3-B.28) Proximal Anterolateral Ligament Tear

MSK MRI 2024. 5. 23. 22:01

https://youtu.be/xqhmZSqq3_E

https://youtu.be/6WOItzqJj1g

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✅  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)



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#AnterolateralLigament, #KneeInjury, #ACLTear, #SegondFracture, #LateralMeniscusTear, #CollateralLigamentInjury, #OsseousInjury, #MRIAccuracy, #KneeAnatomy, #SportsMedicine