Arcuate_popliteal_ligament

Arcuate popliteal ligament

Arcuate popliteal ligament

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The arcuate popliteal ligament is an Y-shaped extracapsular ligament of the knee.[1][2]: 138  It is formed as a thickening of the posterior fibres of the joint capsule of the knee.[2]: 138  It reinforces the knee joint capsule inferolaterally.[3]

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Anatomy

From its fibular attachment, the ligament extends superomedially over the tendon of the popliteus muscle, spreading out[3] superficial to the posterior aspect of the tendon.[3][2]: 134 

Attachments

Its inferior attachment is at the posterior aspect of the head of the fibula.[1][2]: 138 [3]

It has two superior attachments:

  • The medial part of the ligament extends superficial to the tendon of popliteus muscle[2]: 138  to attach at the posterior part of the intercondylar area of tibia.[3][2]: 138 
  • The lateral part forms a separate band that extends to the posterior part of[3] the lateral condyle of femur[3][2]: 138  alongside the tendon of popliteus muscle.[2]: 138 

References

  1. [1]
    Gray, Henry (1918). Gray's Anatomy (20th ed.).
  2. [2]
    Sinnatamby, Chummy S. (2011). Last's Anatomy (12th ed.). ISBN 978-0-7295-3752-0.
  3. [3]
    Palastanga, Nigel; Soames, Roger (2012). Anatomy and Human Movement: Structure and Function. Physiotherapy Essentials (6th ed.). Edinburgh: Churchill Livingstone/Elsevier. p. 307. ISBN 978-0-7020-3553-1.


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