Presentation
Chronic anterior knee pain.
Patient Data
Age: 45 years
Gender: Female
From the case:
Bipartite patella
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Bipartite patella. The location at the superolateral aspect of the patella with smooth margins and lack of overlying soft tissue swelling help to confirm that this is not a fracture.
Case Discussion
Bipartite patella (two-part patella) is an unfused accessory ossification center at the superolateral aspect of the patella. The prevalence of bipartite patella is ~2% in the general population and commonly occurs bilaterally (~43%). Bipartite patella is usually asymptomatic and only 2% of patients with bipartite patella experience symptoms such as anterior knee pain, especially after trauma, sports injury, or overuse.
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