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  Medical Imaging  ←  MRI of the Knee  ←

Phoenix Diagnostic Clinic

The Posterolateral Corner of the Knee  ←  LCL – lateral collateral ligament

Anatomy and biomechanics

LCL – lateral collateral ligament
• Lateral femoral condyle 2 cm above the
joit line
• Length: 60 mm, width 3-5 mm
• Superficially located
• Separate from lateral capsule and
lateral meniscus: connective tissue (PT,
lateral genicular vessels)

LCL – distal attachment
• Cojoined tendon with biceps tendon
• LCL-biceps femoris bursa

MR appearance:

• 100% visualized
• On all sequences: intense hypointense
LCL – lateral collateral ligament
LCL – lateral collateral ligamentLCL – lateral collateral ligament
LCL – lateral collateral ligament


 Static stabilizer of the knee (the only structure from PLC)
 • During varus stress angulation remains within normal limits
 • LCL is most important in limiting varus angulation
 • Limited ability in the flexed knee:
   – External rotation
   – Posterior translation

October 18, 2009

Phoenix Diagnostic Clinic, Bucharest

This site is primarily intended for use by qualified medical or sport professionals.
If you are a consumer, you should evaluate the information together with your physician or other qualified healthcare professional.
The information provided here is for educational and informational purposes only and should not be considered as a medical advice.
As medical and sport science is permanently changing, we (authors and publishers) use our best efforts to provide accurate information, but we can not warrant that the information in this article and web site is accurate, complete or up-to-date.
This article reflects the opinions and judgments of it's author and may be further updated.
If you have questions regarding this article, please contact the author.
Information belongs to Phoenix Diagnostic Clinic, Bucharest

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