Presentation
Fall with injury to the knee. Pain and difficulty weightbearing.
Patient Data
Age: 8 years
Gender: Male
From the case:
Normal patella - secondary ossification center
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/45858/annotated_viewer_json?lang=us"}
There is a small linear ossific density projected anterior to the patellar surface at the inferior pole. This is not a fracture, but represents a secondary ossification center.
Case Discussion
Don't be tempted to call this a fracture - it is a normal finding in the incompletely ossified patella in childhood. The clinical team confirmed that there was no tenderness over the inferior pole of the patella.