The<unk>  has the characteristic accessory ossification center at the superolateral pole. Prevalence of<unk>  is approximately 2% of the population. The superolateral accessory ossification center of the patella is usually present by 12 years of age and may persist into adult life. It is nine times more common in boys than girls. It
occurs bilaterally in about 43% of the cases. The<unk>  is usually discovered incidentally in asymptomatic individuals. Only 2% of patients with<unk>  experience symptoms. In a similar manner to painful, ununited fractures, the painful<unk>  may require nonsurgical or surgical treatment. It may be radiographically confused with an acute patellar fracture.
Bipartite patella
Dislocated patella x ray
Nursemaid's elbow
Dislocated patella
Bone spur
Accessory navicular bone
Retrocalcaneal bursitis
Varus deformity