Knee Anatomy

Aka: Knee Anatomy, Knee Joint, Knee, Patella, Patella Bone

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II. Anatomy: Knee

  1. Bone
    1. Proximal Tibia (tibial plateau) articulates with the overlying femoral condyles
    2. Images
      1. orthoAnteriorBoneHip.jpgAlso available as a Poster size image. See printing instructions and image restrictions.
      2. orthoPosteriorBoneHip.jpgAlso available as a Poster size image. See printing instructions and image restrictions.
      3. orthoLegFemurCondylesGrayBB246.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  2. Ligaments
    1. Side-To-Side stability
      1. Medial collateral ligament
      2. Lateral collateral ligament
    2. Anterior-Posterior stability
      1. Anterior cruciate ligament
      2. Posterior cruciate ligament
    3. Images
      1. KneeAnatomyLigaments.gif
      2. orthoLegKneeRtLigamentsAntGrayBB345.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
      3. orthoLegKneeRtPostLigamentsGrayBB346.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  3. Cartilage
    1. Knee "shock absorbers"
      1. Medial meniscus
      2. Lateral meniscus
    2. Images
      1. orthoLegKneeRtAntCartilageGrayBB347.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
      2. orthoLegKneeRtPostCartilageGrayBB348.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
      3. orthoLegKneeRtSupCartilageGrayBB349.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  4. Capsule
    1. Fibrous capsule
      1. Outer, dense connective tissue surrounds the Knee Joint from proximal tibia to distal femur
    2. Synovial membrane
      1. Inner joint lining enclosing Synovial Fluid
    3. Images
      1. orthoLegKneeRtAntCapsuleGrayBB351.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
      2. orthoLegKneeRtPostCapsuleGrayBB352.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  5. Patella
    1. Patella function
      1. Acts as a shield for the anterior knee, protecting it from direct Trauma
      2. Acts as a fulcrum through which quadriceps contraction can more forcefully extend the knee
    2. Quadriceps tendon
      1. Encases the superior Patella (attaching it to the knee extensors)
      2. Quadriceps tendon continues to the Patellar ligament/tendon
    3. Patellar ligament (Patellar tendon)
      1. Encases the inferior Patella, attaching it to the tibial tuberosity
    4. Images
      1. orthoLegPatellaAntGrayBB255.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
      2. orthoLegKneePatellaRtPostGrayBB353.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)

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