Lateral patellar dislocation

Case contributed by Aditya Shetty
Diagnosis certain

Presentation

Pain and swelling around right knee joint following a fall.

Patient Data

Age: 25 years
Gender: Male
x-ray

Patella of the right knee joint is not seen in its normal position. It is displaced laterally.

Left patella appears normal.

Annotated image

Lateral displacement of right patella as indicated by the yellow circle.

Case Discussion

Case of lateral patellar dislocation. This occurs due to medial retinacular disruption following a trauma to knee joint. This finding can be confirmed on MRI

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