Patellar avulsion fracture
Presentation
Trauma to the left knee. Complaining of anterior knee pain.
From the case:
Patellar avulsion fracture
X-ray
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Frontal
There are tiny bone flakes closed to medial side of the patella. There is a corresponding tiny defect in the adjacent patellar cortex. There is no dislocation/ bone lesion. There are soft tissue density foci in the supra-patellar and in the infra patellar fat pads.
Case Discussion
The case shows an patellar avulsion fracture from its medial margin which should raise a possibility of transient patellar dislocation/ subluxation.
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