Presentation
Pain without history of trauma.
Patient Data
Age: 50 years
Gender: Male
From the case:
Bilateral bipartite patella
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AP and lateral knee radiographs in an adult male. A bony fragment is seen at the lateral aspects of both patellas, corresponding to a bilateral bipartite patella type II.
Case Discussion
Bipartite patella is often an incidental finding and is a normal variant of the development of ossification in approximately 0.2% to 6.0% of the general population. Patients might present with knee pain or instability in less than 2% of the cases. Bipartite patella is mainly seen in males, and the incidence of bilateral bipartite patella varies from 25% to 83% 1.
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