Lateral patellar dislocation

Case contributed by Dr Abdallah Al Khateeb


Knee trauma with subsequent severe pain.

Patient Data

Age: 18
Gender: Female
  • Large bony bruise involving the lateral femoral condyle.
  • Osteochondral disruption of the medial articular surface of the patella with underlying bruise.
  • Redundant medial patellar retinaculum.
  • Moderate joint effusion.

Case Discussion

Lateral patellar dislocation is usually due to twisting injury which results in the patella dislocating laterally and impacting onto the lateral femoral condyle, which results in bony bruises at both involved surfaces.

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Case information

rID: 47826
Published: 10th Sep 2016
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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