Longitudinal Deficiency: A Case Report on Congenital Limb Deformity.

Congenital limb reduction defects affect 1 in 1,900 babies born in the US. Limb reduction refers to the shortening or total absence of a limb or a specific segment of a limb. Congenital deficiencies of the upper limb are the most common location and comprise 58.5% of newborn limb reduction deficiencies. Longitudinal deficiencies affect the long axis of the limb and can affect one bone predominantly or can be hypoplasia or aplasia of several bones. To our knowledge, this case is a unique discussion of a baby born with longitudinal ulnar deficiency without any other commonly seen associated syndrome.