Patellofemoral joint

Changed by Owen Kang, 29 May 2017

Updates to Article Attributes

Body was changed:

The patellofemoral joint is a synovial joint between the condyles of the femur and the articular surface of the patella. It is part of the knee joint.

Gross anatomy

Components
  • medial, lateral and odd facet on the posterior surface of the patella articulate with the medial and lateral condyles of the femur
  • the lateral facet is the largest and steepest facet
  • articular surface: hyaline cartilage
  • capsule: fibrous capsule and synovial membrane is continuous with the knee joint
Movement
  • sliding articulation with knee flexion and extension
Ligaments
  • patellar tendon
  • medial and lateral patellar retinaculum
  • medial patellofemoral ligament
Movement
  • sliding articulation with knee flexion and extension
Relations
  • anterior: patella
  • posterior: femoral condyles, intercondylar groove
  • inferior: patellar tendon, infrapatellar bursa, infrapatellar fat pat, knee joint
  • superior: suprapatellar bursa, common tendon of quadriceps

Blood supply

  • superior medial and lateral geniculate arteries (popliteal artery)
  • inferior medial and lateral geniculate arteries (popliteal artery)
  • descending geniculate branches (femoral and lateral circumflex femoral arteries)

Innervation

Variant anatomy

  • -<p>The <strong>patellofemoral joint</strong> is a synovial joint between the condyles of the <a title="Femur" href="/articles/femur">femur</a> and the articular surface of the <a title="Patella" href="/articles/patella">patella</a>. It is part of the <a title="Knee joint" href="/articles/knee-joint-1">knee joint</a>.</p><h4>Gross anatomy</h4><h5>Components</h5><ul>
  • -<li>medial, lateral and odd facet on the posterior surface of the <a title="Patella" href="/articles/patella">patella</a> articulate with the medial and lateral condyles of the <a title="Femur" href="/articles/femur">femur</a>
  • +<p>The <strong>patellofemoral joint</strong> is a synovial joint between the condyles of the <a href="/articles/femur">femur</a> and the articular surface of the <a href="/articles/patella">patella</a>. It is part of the <a href="/articles/knee-joint-1">knee joint</a>.</p><h4>Gross anatomy</h4><h5>Components</h5><ul>
  • +<li>medial, lateral and odd facet on the posterior surface of the <a href="/articles/patella">patella</a> articulate with the medial and lateral condyles of the <a href="/articles/femur">femur</a>
  • -<li>capsule: fibrous capsule and synovial membrane is continuous with the <a title="Knee joint" href="/articles/knee-joint-1">knee joint</a>
  • +<li>capsule: fibrous capsule and synovial membrane is continuous with the <a href="/articles/knee-joint-1">knee joint</a>
  • -</ul><h5>Ligaments</h5><ul>
  • -<li><a title="Patellar tendon" href="/articles/patellar-tendon">patellar tendon</a></li>
  • +</ul><h5>Movement</h5><ul><li>sliding articulation with knee flexion and extension</li></ul><h5>Ligaments</h5><ul>
  • +<li><a href="/articles/patellar-tendon">patellar tendon</a></li>
  • -</ul><h5>Movement</h5><ul><li>sliding articulation with knee flexion and extension</li></ul><h5>Relations</h5><ul>
  • +</ul><h5>Relations</h5><ul>
  • -</ul><h5>Blood supply</h5><ul>
  • -<li>superior medial and lateral geniculate arteries (<a title="Popliteal artery" href="/articles/popliteal-artery">popliteal artery</a>)</li>
  • -<li>inferior medial and lateral geniculate arteries (<a title="Popliteal artery" href="/articles/popliteal-artery">popliteal artery</a>)</li>
  • +</ul><h4>Blood supply</h4><ul>
  • +<li>superior medial and lateral geniculate arteries (<a href="/articles/popliteal-artery">popliteal artery</a>)</li>
  • +<li>inferior medial and lateral geniculate arteries (<a href="/articles/popliteal-artery">popliteal artery</a>)</li>
  • -</ul><h5>Innervation</h5><ul><li>
  • -<a title="Femoral nerves" href="/articles/femoral-nerve">femoral</a>, <a title="Tibial nerve" href="/articles/tibial-nerve">tibial</a>, <a title="Common fibular nerve" href="/articles/common-peroneal-nerve">common fibular</a> and <a title="Obturator nerve" href="/articles/obturator-nerve">obturator</a> nerves</li></ul><h4>Variant anatomy</h4><ul>
  • +</ul><h4>Innervation</h4><ul><li>
  • +<a href="/articles/femoral-nerve">femoral</a>, <a href="/articles/tibial-nerve">tibial</a>, <a href="/articles/common-peroneal-nerve">common fibular</a> and <a href="/articles/obturator-nerve">obturator</a> nerves</li></ul><h4>Variant anatomy</h4><ul>
  • -<a title="Bipartite patella" href="/articles/bipartite-patella">bipartite</a>/<a title="Multipartite patella" href="/articles/multipartite-patella">multipartite patella</a>
  • +<a href="/articles/bipartite-patella">bipartite</a>/<a href="/articles/multipartite-patella">multipartite patella</a>
  • -<li><a title="Absent patella" href="/articles/absent-patella">absent patella</a></li>
  • -<li><a title="Dorsal defect of patella" href="/articles/dorsal-defect-of-the-patella">dorsal defect of patella</a></li>
  • +<li><a href="/articles/absent-patella">absent patella</a></li>
  • +<li><a href="/articles/dorsal-defect-of-the-patella">dorsal defect of patella</a></li>

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