VOLUME

Patella cubiti is a rare anomaly of the elbow, which can be unilateral or bilateral. It isa sesamoid bone in the triceps brachii tendon. The patella cubiti can be asymptomatic orsymptomatic, with limitation of motion, stiffness or pain. Radiography shows a smoothwell-corticated ossicle projected posterior to the elbow joint. This can be mistaken for apost- traumatic non-union of an old fracture of the olecranon tip. Radiology data andclinical examination are both important and key to an accurate diagnosis. In the case ofan abnormal proximal migration of the patella cubiti, a ruptured triceps brachii tendonshould be considered.