Knee Anatomy Flashcards

1
Q

External ligaments of the knee

A
  • Fibular collateral
  • Tibial collateral
  • Patellar
  • Anterolateral
  • Oblique popliteal
  • Arcuate popliteal
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2
Q

Internal ligaments of the knee

A
  • Anterior cruciate
  • Posterior cruciate
  • Lateral meniscus
  • Medial meniscus
  • Transverse ligament
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3
Q

Attachments and action of ACL

A
  • Attachments:
    > Anterior intercondylar area of tibia
    > Medial aspect of lateral condyle of femur
  • Actions:
    > Prevent anterior translation of tibia
    > Prevent hyperextension + excessive internal rotation
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4
Q

Attachments and action of PCL

A
  • Attachments:
    > Posterior intercondylar area of tibia
    > Lateral surface of medial condyle of femur
  • Actions:
    > Prevent posterior translation of tibia
    > Prevent hyperflexion
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5
Q

General structure of the menisci

A
  • Thick external margins
  • Become thinner medially
  • Unattached edges in interior of joint
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6
Q

What are menisci made of?

A

Fibrocartilage

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7
Q

What do the menisci allow for?

A
  • Joint congruency
  • Load distribution
  • Joint stability
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8
Q

Shape and attachments of medial meniscus

A
  • C-shaped –> broader posteriorly
  • Attachments:
    > A = anterior intercondylar area
    > P = posterior intercondylar area
    > Deep surface of tibial collateral ligament
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9
Q

Shape and attachments of lateral meniscus

A
  • Nearly circular + smaller than medial
  • Attachments:
    > A = anterior intercondylar area
    > P = posterior intercondylar area
    > Posterior horn = medial part of tendon of popliteus
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10
Q

What ligament joins the anterior edges of the mensci?

A

Transverse ligament

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