Fibular Bursa

Description

Fibular bursa. Sequential coronal fat suppressed T2WI (A) from anterior to posterior show a multilocular cystic mass posterolateral to the iliotibial band (solid arrow), insinuating between the fibular collateral ligament (dashed arrow) and the distal biceps femoris tendon (arrow head), consistent with fibular bursitis. Sagittal ultrasound of the lateral knee (B) at the level of the popliteal notch (*) demonstrates a loculated hypoechoic focus between the fibular collateral ligament (dashed arrow) and the biceps femoris tendon (arrow heads).

Name

• Fibular Bursa
• Fibular Collateral Ligament-biceps Femoris Bursa

General

• One of the many bursae of the knee
• Small bursa which separates the anterior arm of the long head of biceps femoris
• From the medially inserting lateral collateral ligament at the level of the fibular head

Gross Anatomy

• Located in the posterolateral corner of the knee with the shape of an inverted "J"
• Separates the distal quarter of the fibular collateral ligament from the anterior arm of long head of biceps femoris
• Arch of the "J" lines the anterior and anteromedial aspects of the fibular collateral ligament

MRI Features

• Can barely be seen on MRI
• Appears as a thin, hyperintense structure between LCL and anterior rim of long head of biceps femoris tendon

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Clinical Significance

• Unknown

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See Also

• Knee Anatomy Main
• Physical Exam Knee
• Knee Pain Main

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