Transient lateral patellar dislocation

Case contributed by Mostafa Elfeky , 22 Jan 2024
Diagnosis almost certain
Changed by Joachim Feger, 29 May 2024
Disclosures - updated 27 Nov 2023: Nothing to disclose

Updates to Study Attributes

Findings was changed:

Bone marrow contusions are seen involving the anterolateral aspect of the lateral femoral condyle and the medial patellar facet. The patella is currently in a normal position.

Partial tear of the patellar attachment of the medial patellofemoral ligament and medial patellar retinaculum.

A rounded high T2 signal in the anterior horn of the lateral meniscus not reaching articular surfaces, suggestive of a grade I signal.

Mild knee joint effusion.

Updates to Case Attributes

Body was changed:

A classic picture of transient;transient lateral patellar dislocation, showing kissing bone bruises and abnormal medial patellar retinaculum with joint effusion. The patella can be seen in a normal position or laterally displaced.

  • -<p>A classic picture of&nbsp;transient lateral patellar dislocation, showing kissing bone bruises and abnormal medial patellar retinaculum with joint effusion. The patella can be seen in a normal position or laterally displaced. </p>
  • +<p>A classic picture of&nbsp;<a href="/articles/lateral-patellar-dislocation" title="Transient lateral patellar dislocation">transient lateral patellar dislocation</a>, showing kissing bone bruises and abnormal medial patellar retinaculum with joint effusion. The patella can be seen in a normal position or laterally displaced.</p>

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