Bilateral Patellar Cubiti: A Case Report

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Korakrit Khomarwut, MD
Watoo Sutthisast, MD
Urarat Vasuntaraporn, MD
Olarn Arpornchayanon, MD


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


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Khomarwut K, Sutthisast W, Vasuntaraporn U, Arpornchayanon O. Bilateral Patellar Cubiti: A Case Report. BKK Med J [Internet]. 2019Feb.20 [cited 2020Jul.16];15(1):91. Available from:
Case Report


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