Patella aplasia/hypoplasia

What is Patella aplasia/hypoplasia?

Isolated patella aplasia-hypoplasia is an extremely rare genetic condition characterized by congenital absence or marked reduction of the patellar bone described in only a few families to date.

Other condition names


Inheritance type

Autosomal dominant


  • Worldwide: <1 in 1,000 000

Age of Onset

  • Infancy
  • Neonatal
Orphadata: Free access data from Orphanet. © INSERM 1999. Available on "". Data version 1.3.16 / 4.1.7.