Synonyms

Abnormal patella

Subtypes

Absent patella

Bipartite patella

Dislocated patella

Hypoplastic patella

Multipartite patella

Patellar dysplasia

May Be Caused by

 Common

Arthrogryposis

Cerebral palsy

Nail-patella syndrome

Normal-variant bipartite patella

Sinding-Larsen-Johansson disease

 Uncommon

Carpenter syndrome

Chondrodysplasia punctata

Congenital patella dislocation

Diastrophic dysplasia

Dyggve-Melchior-Clausen dysplasia

Ellis-van Creveld syndrome

Familial absence of the patella

Familial dislocation of patellae

Familial patella hypoplasia

Genitopatellar syndrome

Infantile multisystem inflammatory disease

Ischio-patellar dysplasia

Kabuki syndrome

Klippel-Feil syndrome

Kuskokwim syndrome

Meier-Gorlin syndrome

Mesomelic dysplasia Werner type

Multiple epiphyseal dysplasia

Neurofibromatosis type 1

Patella infra

Popliteal pterygium syndrome

Pseudoachondroplasia

RAPADILINO syndrome

Rubinstein-Taybi syndrome

Satoyoshi syndrome

Seckel syndrome

Small patella syndrome

Spondyloepimetaphyseal dysplasia

Spondyloepiphyseal dysplasia

Stickler syndrome

Tetrasomy 9p

Trisomy 8

Warfarin embryopathy

Zellweger syndrome