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Arch Orthop Trauma Surg. 2014 Apr;134(4):467-71. doi: 10.1007/s00402-014-1926-7. Epub 2014 Feb 4.

Patella cubiti: a case report and literature review.

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  • 1Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, 110029, India.


Patella cubiti is a rare elbow anomaly in which either the entire olecranon or a part of it remains separate from the proximal ulna. Pain and stiffness are the usual presenting symptoms while some patients are diagnosed incidentally following a minor trauma. Our case report is of a 24-year-old male wrestler with bilateral patella cubiti which was painful on right side and asymptomatic on the left. We also mention an additional cause of pain in patella cubiti-intra-articular loose bodies. These loose bodies were removed surgically and the patient remained asymptomatic at 6-months follow-up. Presence of growth disturbance in the secondary epiphyseal centre of first lumbar vertebra supports the 'developmental theory' of origin of patella cubiti. A compilation of data available in the literature on patella cubiti has been included.

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